Android APIs (Class Index - Android SDK)（一）

这些是Android API（API level: 19）类

类名	描述
A
AbortableHttpRequest	Interface representing an HTTP request that can be aborted by shuttng down the underlying HTTP connection.
AbsListView	Base class that can be used to implement virtualized lists of items.
AbsListView.LayoutParams	AbsListView extends LayoutParams to provide a place to hold the view type.
AbsListView.MultiChoiceModeListener	A MultiChoiceModeListener receives events for CHOICE_MODE_MULTIPLE_MODAL.
AbsListView.OnScrollListener	Interface definition for a callback to be invoked when the list or grid has been scrolled.
AbsListView.RecyclerListener	A RecyclerListener is used to receive a notification whenever a View is placed inside the RecycleBin’s scrap heap.
AbsListView.SelectionBoundsAdjuster	The top-level view of a list item can implement this interface to allow itself to modify the bounds of the selection shown for that item.
AbsoluteLayout	This class was deprecated in API level 3. Use FrameLayout, RelativeLayout or a custom layout instead.
AbsoluteLayout.LayoutParams	Per-child layout information associated with AbsoluteLayout.
AbsoluteSizeSpan
AbsSavedState	A Parcelable implementation that should be used by inheritance hierarchies to ensure the state of all classes along the chain is saved.
AbsSeekBar
AbsSpinner	An abstract base class for spinner widgets.
AbstractAccountAuthenticator	Abstract base class for creating AccountAuthenticators.
AbstractAuthenticationHandler
AbstractClientConnAdapter	Abstract adapter from operated to managed client connections.
AbstractCollection	Class AbstractCollection is an abstract implementation of the Collection interface.
AbstractConnPool	An abstract connection pool.
AbstractCookieAttributeHandler
AbstractCookieSpec	Abstract cookie specification which can delegate the job of parsing, validation or matching cookie attributes to a number of arbitrary CookieAttributeHandlers.
AbstractCursor	This is an abstract cursor class that handles a lot of the common code that all cursors need to deal with and is provided for convenience reasons.
AbstractCursor.SelfContentObserver	Cursors use this class to track changes others make to their URI.
AbstractExecutorService	Provides default implementations of ExecutorService execution methods.
AbstractHttpClient	Convenience base class for HTTP client implementations.
AbstractHttpClientConnection	Abstract client-side HTTP connection capable of transmitting and receiving data using arbitrary SessionInputBuffer and SessionOutputBuffer
AbstractHttpEntity	Abstract base class for entities.
AbstractHttpMessage	Basic implementation of an HTTP message that can be modified.
AbstractHttpParams	Abstract base class for parameter collections.
AbstractHttpServerConnection	Abstract server-side HTTP connection capable of transmitting and receiving data using arbitrary SessionInputBuffer and SessionOutputBuffer
AbstractInputMethodService	AbstractInputMethodService provides a abstract base class for input methods.
AbstractInputMethodService.AbstractInputMethodImpl	Base class for derived classes to implement their InputMethod interface.
AbstractInputMethodService.AbstractInputMethodSessionImpl	Base class for derived classes to implement their InputMethodSession interface.
AbstractInterruptibleChannel	AbstractInterruptibleChannel is the root class for interruptible channels.
AbstractList	AbstractList is an abstract implementation of the List interface, optimized for a backing store which supports random access.
AbstractMap	A base class for Map implementations.
AbstractMap.SimpleEntry	A key-value mapping with mutable values.
AbstractMap.SimpleImmutableEntry	An immutable key-value mapping.
AbstractMessageParser	Message parser base class.
AbstractMessageWriter
AbstractMethodError	Thrown by the VM when an abstract method is called.
AbstractOwnableSynchronizer	A synchronizer that may be exclusively owned by a thread.
AbstractPooledConnAdapter	Abstract adapter from pool entries to managed client connections.
AbstractPoolEntry	A pool entry for use by connection manager implementations.
AbstractPreferences	This abstract class is a partial implementation of the abstract class Preferences, which can be used to simplify Preferences provider’s implementation.
AbstractQueue	This class provides skeletal implementations of some Queue operations.
AbstractQueuedLongSynchronizer	A version of AbstractQueuedSynchronizer in which synchronization state is maintained as a long.
AbstractQueuedLongSynchronizer.ConditionObject	Condition implementation for a AbstractQueuedLongSynchronizer serving as the basis of a Lock implementation.
AbstractQueuedSynchronizer	Provides a framework for implementing blocking locks and related synchronizers (semaphores, events, etc) that rely on first-in-first-out (FIFO) wait queues.
AbstractQueuedSynchronizer.ConditionObject	Condition implementation for a AbstractQueuedSynchronizer serving as the basis of a Lock implementation.
AbstractSelectableChannel	AbstractSelectableChannel is the base implementation class for selectable channels.
AbstractSelectionKey	AbstractSelectionKey is the base implementation class for selection keys.
AbstractSelector	AbstractSelector is the base implementation class for selectors.
AbstractSequentialList	AbstractSequentialList is an abstract implementation of the List interface.
AbstractSessionInputBuffer	Abstract base class for session input buffers that stream data from a InputStream.
AbstractSessionOutputBuffer	Abstract base class for session output buffers that stream data to an OutputStream.
AbstractSet	An AbstractSet is an abstract implementation of the Set interface.
AbstractThreadedSyncAdapter	An abstract implementation of a SyncAdapter that spawns a thread to invoke a sync operation.
AbstractVerifier	Abstract base class for all standard X509HostnameVerifier implementations.
AbstractWindowedCursor	A base class for Cursors that store their data in CursorWindows.
AccelerateDecelerateInterpolator	An interpolator where the rate of change starts and ends slowly but accelerates through the middle.
AccelerateInterpolator	An interpolator where the rate of change starts out slowly and and then accelerates.
AccessControlContext	Legacy security code; do not use.
AccessControlException	AccessControlException is thrown if the access control infrastructure denies protected access due to missing permissions.
AccessController	Legacy security code; do not use.
AccessibilityDelegateCompat	Helper for accessing View.AccessibilityDelegate introduced after API level 4 in a backwards compatible fashion.
AccessibilityEvent	This class represents accessibility events that are sent by the system when something notable happens in the user interface.
AccessibilityEventCompat	Helper for accessing features in AccessibilityEvent introduced after API level 4 in a backwards compatible fashion.
AccessibilityEventSource	This interface is implemented by classes source of AccessibilityEvents.
AccessibilityManager	System level service that serves as an event dispatch for AccessibilityEvents, and provides facilities for querying the accessibility state of the system.
AccessibilityManager.AccessibilityStateChangeListener	Listener for the system accessibility state.
AccessibilityManager.TouchExplorationStateChangeListener	Listener for the system touch exploration state.
AccessibilityManagerCompat	Helper for accessing features in AccessibilityManager introduced after API level 4 in a backwards compatible fashion.
AccessibilityManagerCompat.AccessibilityStateChangeListenerCompat	Listener for the accessibility state.
AccessibilityNodeInfo	This class represents a node of the window content as well as actions that can be requested from its source.
AccessibilityNodeInfo.CollectionInfo	Class with information if a node is a collection.
AccessibilityNodeInfo.CollectionItemInfo	Class with information if a node is a collection item.
AccessibilityNodeInfo.RangeInfo	Class with information if a node is a range.
AccessibilityNodeInfoCompat	Helper for accessing AccessibilityNodeInfo introduced after API level 4 in a backwards compatible fashion.
AccessibilityNodeProvider	This class is the contract a client should implement to enable support of a virtual view hierarchy rooted at a given view for accessibility purposes.
AccessibilityNodeProviderCompat	Helper for accessing AccessibilityNodeProvider introduced after API level 4 in a backwards compatible fashion.
AccessibilityRecord	Represents a record in an AccessibilityEvent and contains information about state change of its source View.
AccessibilityRecordCompat	Helper for accessing AccessibilityRecord introduced after API level 4 in a backwards compatible fashion.
AccessibilityService	An accessibility service runs in the background and receives callbacks by the system when AccessibilityEvents are fired.
AccessibilityServiceInfo	This class describes an AccessibilityService.
AccessibilityServiceInfoCompat	Helper for accessing features in AccessibilityService introduced after API level 4 in a backwards compatible fashion.
AccessibleObject	AccessibleObject is the superclass of all member reflection classes (Field, Constructor, Method).
Account	Value type that represents an Account in the AccountManager.
AccountAuthenticatorActivity	Base class for implementing an Activity that is used to help implement an AbstractAccountAuthenticator.
AccountAuthenticatorResponse	Object used to communicate responses back to the AccountManager
AccountManager	This class provides access to a centralized registry of the user’s online accounts.
AccountManagerCallback
AccountManagerFuture	A AccountManagerFuture represents the result of an asynchronous AccountManager call.
AccountsException
Acl	The Access Control List (ACL) interface definition.
AclEntry	The Access Control List Entry interface definition.
AclNotFoundException	The exception, that is thrown when a reference to a non-existent Access Control List (ACL) is made.
AcousticEchoCanceler	Acoustic Echo Canceler (AEC).
ActionBar	A window feature at the top of the activity that may display the activity title, navigation modes, and other interactive items.
ActionBar	A window feature at the top of the activity that may display the activity title, navigation modes, and other interactive items.
ActionBar.LayoutParams	Per-child layout information associated with action bar custom views.
ActionBar.LayoutParams	Per-child layout information associated with action bar custom views.
ActionBar.OnMenuVisibilityListener	Listener for receiving events when action bar menus are shown or hidden.
ActionBar.OnMenuVisibilityListener	Listener for receiving events when ActionBar items are shown or hidden.
ActionBar.OnNavigationListener	Listener interface for ActionBar navigation events.
ActionBar.OnNavigationListener	Listener for receiving ActionBar navigation events.
ActionBar.Tab	A tab in the action bar.
ActionBar.Tab	A tab in the action bar that manages the hiding and showing of Fragments.
ActionBar.TabListener	Callback interface invoked when a tab is focused, unfocused, added, or removed.
ActionBar.TabListener	Callback interface invoked when an ActionBar.Tab is focused, unfocused, added, or removed.
ActionBarActivity	Base class for activities that use the support library action bar features.
ActionBarDrawerToggle	This class provides a handy way to tie together the functionality of DrawerLayout and the framework ActionBar to implement the recommended design for navigation drawers.
ActionBarDrawerToggle.Delegate
ActionBarDrawerToggle.DelegateProvider	Allows an implementing Activity to return an ActionBarDrawerToggle.Delegate to use with ActionBarDrawerToggle.
ActionBarImplJB
ActionMode	Represents a contextual mode of the user interface.
ActionMode	Represents a contextual mode of the user interface.
ActionMode.Callback	Callback interface for action modes.
ActionMode.Callback	Callback interface for action modes.
ActionProvider	This class is a mediator for accomplishing a given task, for example sharing a file.
ActionProvider	An ActionProvider defines rich menu interaction in a single component.
ActionProvider.VisibilityListener	Listens to changes in visibility as reported by refreshVisibility().
ActionProvider.VisibilityListener	Listens to changes in visibility as reported by refreshVisibility().
Activity	An activity is a single, focused thing that the user can do.
ActivityCompat	Helper for accessing features in Activity introduced after API level 4 in a backwards compatible fashion.
ActivityGroup	This class was deprecated in API level 13. Use the new Fragment and FragmentManager APIs instead; these are also available on older platforms through the Android compatibility package.
ActivityInfo	Information you can retrieve about a particular application activity or receiver.
ActivityInfoCompat	Helper for accessing features in ActivityInfo introduced after API level 4 in a backwards compatible fashion.
ActivityInstrumentationTestCase	This class was deprecated in API level 3. new tests should be written using ActivityInstrumentationTestCase2, which provides more options for configuring the Activity under test
ActivityInstrumentationTestCase2	This class provides functional testing of a single activity.
ActivityManager	Interact with the overall activities running in the system.
ActivityManager.MemoryInfo	Information you can retrieve about the available memory through getMemoryInfo(ActivityManager.MemoryInfo).
ActivityManager.ProcessErrorStateInfo	Information you can retrieve about any processes that are in an error condition.
ActivityManager.RecentTaskInfo	Information you can retrieve about tasks that the user has most recently started or visited.
ActivityManager.RunningAppProcessInfo	Information you can retrieve about a running process.
ActivityManager.RunningServiceInfo	Information you can retrieve about a particular Service that is currently running in the system.
ActivityManager.RunningTaskInfo	Information you can retrieve about a particular task that is currently “running” in the system.
ActivityNotFoundException	This exception is thrown when a call to startActivity(Intent) or one of its variants fails because an Activity can not be found to execute the given Intent.
ActivityOptions	Helper class for building an options Bundle that can be used with Context.startActivity(Intent, Bundle) and related methods.
ActivityOptionsCompat	Helper for accessing features in ActivityOptions introduced in API level 16 in a backwards compatible fashion.
ActivityTestCase	This is common code used to support Activity test cases.
ActivityUnitTestCase	This class provides isolated testing of a single activity.
Adapter	An Adapter object acts as a bridge between an AdapterView and the underlying data for that view.
AdapterView	An AdapterView is a view whose children are determined by an Adapter.
AdapterView.AdapterContextMenuInfo	Extra menu information provided to the onCreateContextMenu(ContextMenu, View, ContextMenuInfo) callback when a context menu is brought up for this AdapterView.
AdapterView.OnItemClickListener	Interface definition for a callback to be invoked when an item in this AdapterView has been clicked.
AdapterView.OnItemLongClickListener	Interface definition for a callback to be invoked when an item in this view has been clicked and held.
AdapterView.OnItemSelectedListener	Interface definition for a callback to be invoked when an item in this view has been selected.
AdapterViewAnimator	Base class for a AdapterView that will perform animations when switching between its views.
AdapterViewFlipper	Simple ViewAnimator that will animate between two or more views that have been added to it.
Address	A class representing an Address, i.e, a set of Strings describing a location.
Adler32	The Adler-32 class is used to compute the Adler32 checksum from a set of data.
Advanceable	This interface can be implemented by any collection-type view which has a notion of progressing through its set of children.
AEADBadTagException	Thrown by a Cipher that is using an Authenticated Encryption with Additional Data (AEAD) mode such as Galois/Counter Mode (GCM) and the tag failed verification.
AlarmClock	The AlarmClock provider contains an Intent action and extras that can be used to start an Activity to set a new alarm or timer in an alarm clock application.
AlarmManager	This class provides access to the system alarm services.
AlertDialog	A subclass of Dialog that can display one, two or three buttons.
AlertDialog.Builder
AlgorithmParameterGenerator	AlgorithmParameterGenerator is an engine class which is capable of generating parameters for the algorithm it was initialized with.
AlgorithmParameterGeneratorSpi	AlgorithmParameterGeneratorSpi is the Service Provider Interface (SPI) definition for AlgorithmParameterGenerator.
AlgorithmParameters	AlgorithmParameters is an engine class which provides algorithm parameters.
AlgorithmParameterSpec	The marker interface for algorithm parameter specifications.
AlgorithmParametersSpi	AlgorithmParametersSpi is the Service Provider Interface (SPI) definition for AlgorithmParameters.
AliasActivity	Stub activity that launches another activity (and then finishes itself) based on information in its component’s manifest meta-data.
AlignmentSpan
AlignmentSpan.Standard
AllClientPNames	Collected parameter names for the HttpClient module.
Allocation	This class provides the primary method through which data is passed to and from RenderScript kernels.
Allocation	This class provides the primary method through which data is passed to and from RenderScript kernels.
Allocation.MipmapControl	Controls mipmap behavior when using the bitmap creation and update functions.
Allocation.MipmapControl	Controls mipmap behavior when using the bitmap creation and update functions.
Allocation.OnBufferAvailableListener	Interface to handle notification when new buffers are available via USAGE_IO_INPUT.
AllocationAdapter	Only intended for use by generated reflected code.
AllowAllHostnameVerifier	The ALLOW_ALL HostnameVerifier essentially turns hostname verification off.
AllPermission	Legacy security code; do not use.
AlphaAnimation	An animation that controls the alpha level of an object.
AlphabetIndexer	A helper class for adapters that implement the SectionIndexer interface.
AlreadyConnectedException	An AlreadyConnectedException is thrown when an attempt is made to connect a SocketChannel that is already connected.
AlteredCharSequence	An AlteredCharSequence is a CharSequence that is largely mirrored from another CharSequence, except that a specified range of characters are mirrored from a different char array instead.
AnalogClock	This widget display an analogic clock with two hands for hours and minutes.
AndroidCharacter	AndroidCharacter exposes some character properties that are not easily accessed from java.lang.Character.
AndroidException	Base class for all checked exceptions thrown by the Android frameworks.
AndroidHttpClient	Implementation of the Apache DefaultHttpClient that is configured with reasonable default settings and registered schemes for Android.
AndroidRuntimeException	Base class for all unchecked exceptions thrown by the Android frameworks.
AndroidTestCase	Extend this if you need to access Resources or other things that depend on Activity Context.
AndroidTestRunner
Animatable	Interface that drawables suporting animations should implement.
Animation	Abstraction for an Animation that can be applied to Views, Surfaces, or other objects.
Animation.AnimationListener	An animation listener receives notifications from an animation.
Animation.Description	Utility class to parse a string description of a size.
AnimationDrawable	An object used to create frame-by-frame animations, defined by a series of Drawable objects, which can be used as a View object’s background.
AnimationSet	Represents a group of Animations that should be played together.
AnimationUtils	Defines common utilities for working with animations.
Animator	This is the superclass for classes which provide basic support for animations which can be started, ended, and have AnimatorListeners added to them.
Animator.AnimatorListener	An animation listener receives notifications from an animation.
Animator.AnimatorPauseListener	A pause listener receives notifications from an animation when the animation is paused or resumed.
AnimatorInflater	This class is used to instantiate animator XML files into Animator objects.
AnimatorListenerAdapter	This adapter class provides empty implementations of the methods from Animator.AnimatorListener.
AnimatorSet	This class plays a set of Animator objects in the specified order.
AnimatorSet.Builder	The Builder object is a utility class to facilitate adding animations to a AnimatorSet along with the relationships between the various animations.
AnnotatedElement	This interface provides reflective access to annotation information.
Annotation	Annotations are simple key-value pairs that are preserved across TextView save/restore cycles and can be used to keep application-specific data that needs to be maintained for regions of text.
Annotation	Defines the interface implemented by all annotations.
Annotation	Wrapper for a text attribute value which represents an annotation.
AnnotationFormatError	Indicates that an annotation in the binary representation of a class is syntactically incorrect and the annotation parser is unable to process it.
AnnotationTypeMismatchException	Indicates that an annotation type has changed since it was compiled or serialized.
AnticipateInterpolator	An interpolator where the change starts backward then flings forward.
AnticipateOvershootInterpolator	An interpolator where the change starts backward then flings forward and overshoots the target value and finally goes back to the final value.
Appendable	Declares methods to append characters or character sequences.
Application	Base class for those who need to maintain global application state.
Application.ActivityLifecycleCallbacks
Application.OnProvideAssistDataListener	Callback interface for use with registerOnProvideAssistDataListener(Application.OnProvideAssistDataListener) and unregisterOnProvideAssistDataListener(Application.OnProvideAssistDataListener).
ApplicationErrorReport	Describes an application error.
ApplicationErrorReport.AnrInfo	Describes an application not responding error.
ApplicationErrorReport.BatteryInfo	Describes a battery usage report.
ApplicationErrorReport.CrashInfo	Describes an application crash.
ApplicationErrorReport.RunningServiceInfo	Describes a running service report.
ApplicationInfo	Information you can retrieve about a particular application.
ApplicationInfo.DisplayNameComparator
ApplicationTestCase	This test case provides a framework in which you can test Application classes in a controlled environment.
AppOpsManager	API for interacting with “application operation” tracking.
AppOpsManager.OnOpChangedListener	Callback for notification of changes to operation state.
AppWidgetHost	AppWidgetHost provides the interaction with the AppWidget service for apps, like the home screen, that want to embed AppWidgets in their UI.
AppWidgetHostView	Provides the glue to show AppWidget views.
AppWidgetManager	Updates AppWidget state; gets information about installed AppWidget providers and other AppWidget related state.
AppWidgetProvider	A convenience class to aid in implementing an AppWidget provider.
AppWidgetProviderInfo	Describes the meta data for an installed AppWidget provider.
ArcShape	Creates an arc shape.
ArgbEvaluator	This evaluator can be used to perform type interpolation between integer values that represent ARGB colors.
ArithmeticException	Thrown when the an invalid arithmetic operation is attempted.
Array	Provides static methods to create and access arrays dynamically.
Array	A Java representation of the SQL ARRAY type.
ArrayAdapter	A concrete BaseAdapter that is backed by an array of arbitrary objects.
ArrayBlockingQueue	A bounded blocking queue backed by an array.
ArrayDeque	Resizable-array implementation of the Deque interface.
ArrayIndexOutOfBoundsException	Thrown when the an array is indexed with a value less than zero, or greater than or equal to the size of the array.
ArrayList	ArrayList is an implementation of List, backed by an array.
ArrayMap	ArrayMap is a generic key->value mapping data structure that is designed to be more memory efficient than a traditional HashMap, this implementation is a version of the platform’s ArrayMap that can be used on older versions of the platform.
ArrayMap	ArrayMap is a generic key->value mapping data structure that is designed to be more memory efficient than a traditional HashMap.
Arrays	Arrays contains static methods which operate on arrays.
ArrayStoreException	Thrown when a program attempts to store an element of an incompatible type in an array.
ArrowKeyMovementMethod	A movement method that provides cursor movement and selection.
Assert	A set of assert methods.
AssertionError	Thrown when an assertion has failed.
AssertionFailedError	This class was deprecated in API level 16. use junit.framework.AssertionFailedError
AssertionFailedError	Thrown when an assertion failed.
AssetFileDescriptor	File descriptor of an entry in the AssetManager.
AssetFileDescriptor.AutoCloseInputStream	An InputStream you can create on a ParcelFileDescriptor, which will take care of calling ParcelFileDescritor.close() for you when the stream is closed.
AssetFileDescriptor.AutoCloseOutputStream	An OutputStream you can create on a ParcelFileDescriptor, which will take care of calling ParcelFileDescritor.close() for you when the stream is closed.
AssetManager	Provides access to an application’s raw asset files; see Resources for the way most applications will want to retrieve their resource data.
AssetManager.AssetInputStream
AsynchronousCloseException	An AsynchronousCloseException is thrown when the underlying channel for an I/O operation is closed by another thread.
AsyncPlayer	Plays a series of audio URIs, but does all the hard work on another thread so that any slowness with preparing or loading doesn’t block the calling thread.
AsyncQueryHandler	A helper class to help make handling asynchronous ContentResolver queries easier.
AsyncQueryHandler.WorkerArgs
AsyncQueryHandler.WorkerHandler
AsyncTask	AsyncTask enables proper and easy use of the UI thread.
AsyncTask.Status	Indicates the current status of the task.
AsyncTaskLoader	Abstract Loader that provides an AsyncTask to do the work.
AsyncTaskLoader	Static library support version of the framework’s AsyncTaskLoader.
AtomicBoolean	A boolean value that may be updated atomically.
AtomicFile	Static library support version of the framework’s AtomicFile, a helper class for performing atomic operations on a file by creating a backup file until a write has successfully completed.
AtomicFile	Helper class for performing atomic operations on a file by creating a backup file until a write has successfully completed.
AtomicInteger	An int value that may be updated atomically.
AtomicIntegerArray	An int array in which elements may be updated atomically.
AtomicIntegerFieldUpdater	A reflection-based utility that enables atomic updates to designated volatile int fields of designated classes.
AtomicLong	A long value that may be updated atomically.
AtomicLongArray	A long array in which elements may be updated atomically.
AtomicLongFieldUpdater	A reflection-based utility that enables atomic updates to designated volatile long fields of designated classes.
AtomicMarkableReference	An AtomicMarkableReference maintains an object reference along with a mark bit, that can be updated atomically.
AtomicReference	An object reference that may be updated atomically.
AtomicReferenceArray	An array of object references in which elements may be updated atomically.
AtomicReferenceFieldUpdater	A reflection-based utility that enables atomic updates to designated volatile reference fields of designated classes.
AtomicStampedReference	An AtomicStampedReference maintains an object reference along with an integer “stamp”, that can be updated atomically.
Attr	The Attr interface represents an attribute in an Element object.
AttributedCharacterIterator	Extends the CharacterIterator interface, adding support for iterating over attributes and not only characters.
AttributedCharacterIterator.Attribute	Defines keys for text attributes.
AttributedString	Holds a string with attributes describing the characters of this string.
AttributeList	This interface was deprecated in API level 1. This interface has been replaced by the SAX2 Attributes interface, which includes Namespace support.
AttributeListImpl	This class was deprecated in API level 1. This class implements a deprecated interface, AttributeList; that interface has been replaced by Attributes, which is implemented in the AttributesImpl helper class.
Attributes	The Attributes class is used to store values for manifest entries.
Attributes	Interface for a list of XML attributes.
Attributes.Name	The name part of the name/value pairs constituting an attribute as defined by the specification of the JAR manifest.
Attributes2	SAX2 extension to augment the per-attribute information provided though Attributes.
Attributes2Impl	SAX2 extension helper for additional Attributes information, implementing the Attributes2 interface.
AttributeSet	A collection of attributes, as found associated with a tag in an XML document.
AttributesImpl	Default implementation of the Attributes interface.
AudioCodec	This class defines a collection of audio codecs to be used with AudioStreams.
AudioEffect	AudioEffect is the base class for controlling audio effects provided by the android audio framework.
AudioEffect.Descriptor	The effect descriptor contains information on a particular effect implemented in the audio framework:
	type: UUID identifying the effect type.
AudioEffect.OnControlStatusChangeListener	The OnControlStatusChangeListener interface defines a method called by the AudioEffect when a the control of the effect engine is gained or lost by the application
AudioEffect.OnEnableStatusChangeListener	The OnEnableStatusChangeListener interface defines a method called by the AudioEffect when a the enabled state of the effect engine was changed by the controlling application.
AudioFormat	The AudioFormat class is used to access a number of audio format and channel configuration constants.
AudioGroup	An AudioGroup is an audio hub for the speaker, the microphone, and AudioStreams.
AudioManager	AudioManager provides access to volume and ringer mode control.
AudioManager.OnAudioFocusChangeListener	Interface definition for a callback to be invoked when the audio focus of the system is updated.
AudioRecord	The AudioRecord class manages the audio resources for Java applications to record audio from the audio input hardware of the platform.
AudioRecord.OnRecordPositionUpdateListener	Interface definition for a callback to be invoked when an AudioRecord has reached a notification marker set by setNotificationMarkerPosition(int) or for periodic updates on the progress of the record head, as set by setPositionNotificationPeriod(int).
AudioStream	An AudioStream is a RtpStream which carrys audio payloads over Real-time Transport Protocol (RTP).
AudioTimestamp	Structure that groups a position in frame units relative to an assumed audio stream, together with the estimated time when that frame was presented or is committed to be presented.
AudioTrack	The AudioTrack class manages and plays a single audio resource for Java applications.
AudioTrack.OnPlaybackPositionUpdateListener	Interface definition for a callback to be invoked when the playback head position of an AudioTrack has reached a notification marker or has increased by a certain period.
AUTH	Constants and static helpers related to the HTTP authentication.
AuthenticationException	Signals a failure in authentication process
AuthenticationHandler
Authenticator	An implementation of this class is able to obtain authentication information for a connection in several ways.
Authenticator.RequestorType	Enumeration class for the origin of the authentication request.
AuthenticatorDescription	A Parcelable value type that contains information about an account authenticator.
AuthenticatorException
AuthParamBean
AuthParams	This class implements an adaptor around the HttpParams interface to simplify manipulation of the HTTP authentication specific parameters.
AuthPermission	Legacy security code; do not use.
AuthPNames	Parameter names for HttpAuth.
AuthPolicy
AuthProvider	Legacy security code; do not use.
AuthScheme	This interface represents an abstract challenge-response oriented authentication scheme.
AuthSchemeBase	Abstract authentication scheme class that serves as a basis for all authentication schemes supported by HttpClient.
AuthSchemeFactory
AuthSchemeRegistry	Authentication scheme registry that can be used to obtain the corresponding authentication scheme implementation for a given type of authorization challenge.
AuthScope	The class represents an authentication scope consisting of a host name, a port number, a realm name and an authentication scheme name which Credentials apply to.
AuthState	This class provides detailed information about the state of the authentication process.
AutoCloseable	Defines an interface for classes that can (or need to) be closed once they are not used any longer.
AutoCompleteTextView	An editable text view that shows completion suggestions automatically while the user is typing.
AutoCompleteTextView.OnDismissListener	Listener to respond to the AutoCompleteTextView’s completion list being dismissed.
AutoCompleteTextView.Validator	This interface is used to make sure that the text entered in this TextView complies to a certain format.
AutomaticGainControl	Automatic Gain Control (AGC).
AutoScrollHelper	AutoScrollHelper is a utility class for adding automatic edge-triggered scrolling to Views.
AutoText	This class accesses a dictionary of corrections to frequent misspellings.
AutoTransition	Utility class for creating a default transition that automatically fades, moves, and resizes views during a scene change.
AvoidXfermode	AvoidXfermode xfermode will draw the src everywhere except on top of the opColor or, depending on the Mode, draw only on top of the opColor.
AvoidXfermode.Mode
B
BackgroundColorSpan
BackingStoreException	An exception to indicate that an error was encountered while accessing the backing store.
BackupAgent	Provides the central interface between an application and Android’s data backup infrastructure.
BackupAgentHelper	A convenient BackupAgent wrapper class that automatically manages heterogeneous data sets within the backup data, each identified by a unique key prefix.
BackupDataInput	Provides the structured interface through which a BackupAgent reads information from the backup data set, via its onRestore() method.
BackupDataInputStream	Provides an InputStream-like interface for accessing an entity’s data during a restore operation.
BackupDataOutput	Provides the structured interface through which a BackupAgent commits information to the backup data set, via its onBackup() method.
BackupHelper	Defines the calling interface that BackupAgentHelper uses when dispatching backup and restore operations to the installed helpers.
BackupManager	The interface through which an application interacts with the Android backup service to request backup and restore operations.
BadPaddingException	The exception that is thrown when a padding mechanism is expected for the input data, but the input data does not have the proper padding bytes.
BadParcelableException	The object you are calling has died, because its hosting process no longer exists.
Base64	Utilities for encoding and decoding the Base64 representation of binary data.
Base64DataException	This exception is thrown by Base64InputStream or Base64OutputStream when an error is detected in the data being decoded.
Base64InputStream	An InputStream that does Base64 decoding on the data read through it.
Base64OutputStream	An OutputStream that does Base64 encoding on the data written to it, writing the resulting data to another OutputStream.
BaseAdapter	Common base class of common implementation for an Adapter that can be used in both ListView (by implementing the specialized ListAdapter interface} and Spinner (by implementing the specialized SpinnerAdapter interface.
BaseColumns
BaseDexClassLoader	Base class for common functionality between various dex-based ClassLoader implementations.
BaseExpandableListAdapter	Base class for a ExpandableListAdapter used to provide data and Views from some data to an expandable list view.
BaseInputConnection	Base class for implementors of the InputConnection interface, taking care of most of the common behavior for providing a connection to an Editable.
BaseKeyListener	Abstract base class for key listeners.
BaseMovementMethod	Base classes for movement methods.
BaseObj	BaseObj is the base class for all RenderScript objects owned by a RS context.
BaseObj	BaseObj is the base class for all RenderScript objects owned by a RS context.
BaseTestRunner	Base class for all test runners.
BasicClientCookie	HTTP “magic-cookie” represents a piece of state information that the HTTP agent and the target server can exchange to maintain a session.
BasicClientCookie2	HTTP “magic-cookie” represents a piece of state information that the HTTP agent and the target server can exchange to maintain a session as specified by RFC2965.
BasicCommentHandler
BasicCookieStore	Default implementation of CookieStore
BasicCredentialsProvider	Default implementation of CredentialsProvider
BasicDomainHandler
BasicEofSensorWatcher	Basic implementation of EofSensorWatcher.
BasicExpiresHandler
BasicHeader	Represents an HTTP header field.
BasicHeaderElement	One element of an HTTP header’s value.
BasicHeaderElementIterator	Basic implementation of a HeaderElementIterator.
BasicHeaderIterator	Basic implementation of a HeaderIterator.
BasicHeaderValueFormatter	Basic implementation for formatting header value elements.
BasicHeaderValueParser	Basic implementation for parsing header values into elements.
BasicHttpContext	Default implementation of the HttpContext.
BasicHttpEntity	A generic streamed entity being received on a connection.
BasicHttpEntityEnclosingRequest	Basic implementation of a request with an entity that can be modified.
BasicHttpParams	This class represents a collection of HTTP protocol parameters.
BasicHttpProcessor	Keeps lists of interceptors for processing requests and responses.
BasicHttpRequest	Basic implementation of an HTTP request that can be modified.
BasicHttpResponse	Basic implementation of an HTTP response that can be modified.
BasicLineFormatter	Interface for formatting elements of the HEAD section of an HTTP message.
BasicLineParser	Basic parser for lines in the head section of an HTTP message.
BasicListHeaderIterator	Implementation of a HeaderIterator based on a List.
BasicManagedEntity	An entity that releases a connection.
BasicMaxAgeHandler
BasicNameValuePair	A simple class encapsulating an attribute/value pair.
BasicPathHandler
BasicPermission	Legacy security code; do not use.
BasicPooledConnAdapter	A connection wrapper and callback handler.
BasicPoolEntry	Basic implementation of a connection pool entry.
BasicPoolEntryRef	A weak reference to a BasicPoolEntry.
BasicRequestLine	The first line of an HttpRequest.
BasicResponseHandler	A ResponseHandler that returns the response body as a String for successful (2xx) responses.
BasicRouteDirector	Basic implementation of an HttpRouteDirector.
BasicScheme	Basic authentication scheme as defined in RFC 2617.
BasicSchemeFactory
BasicSecureHandler
BasicStatusLine	Represents a status line as returned from a HTTP server.
BasicTokenIterator	Basic implementation of a TokenIterator.
BasicUserPrincipal	Basic user principal used for HTTP authentication
BassBoost	Bass boost is an audio effect to boost or amplify low frequencies of the sound.
BassBoost.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the BassBoost when a parameter value has changed.
BassBoost.Settings	The Settings class regroups all bass boost parameters.
BatchUpdateException	This exception is thrown if a problem occurs during a batch update operation.
BatteryManager	The BatteryManager class contains strings and constants used for values in the ACTION_BATTERY_CHANGED Intent.
BestMatchSpec	‘Meta’ cookie specification that selects a cookie policy depending on the format of the cookie(s)
BestMatchSpecFactory
Bidi	Implements the Unicode Bidirectional Algorithm.
BidiFormatter	Utility class for formatting text for display in a potentially opposite-directionality context without garbling.
BidiFormatter	Utility class for formatting text for display in a potentially opposite-directionality context without garbling.
BidiFormatter.Builder	A class for building a BidiFormatter with non-default options.
BidiFormatter.Builder	A class for building a BidiFormatter with non-default options.
BigDecimal	An immutable arbitrary-precision signed decimal.
BigInteger	An immutable arbitrary-precision signed integer.
Binder	Base class for a remotable object, the core part of a lightweight remote procedure call mechanism defined by IBinder.
BindException	A BindException is thrown when a process cannot bind a local address/port, either because it is already bound or reserved by the OS.
Bitmap
Bitmap.CompressFormat	Specifies the known formats a bitmap can be compressed into
Bitmap.Config	Possible bitmap configurations.
BitmapDrawable	A Drawable that wraps a bitmap and can be tiled, stretched, or aligned.
BitmapFactory	Creates Bitmap objects from various sources, including files, streams, and byte-arrays.
BitmapFactory.Options
BitmapRegionDecoder	BitmapRegionDecoder can be used to decode a rectangle region from an image.
BitmapShader	Shader used to draw a bitmap as a texture.
BitSet	The BitSet class implements a bit array.
Blob	A Java interface representing the SQL BLOB type.
BlockingDeque	A Deque that additionally supports blocking operations that wait for the deque to become non-empty when retrieving an element, and wait for space to become available in the deque when storing an element.
BlockingQueue	A Queue that additionally supports operations that wait for the queue to become non-empty when retrieving an element, and wait for space to become available in the queue when storing an element.
BluetoothA2dp	This class provides the public APIs to control the Bluetooth A2DP profile.
BluetoothAdapter	Represents the local device Bluetooth adapter.
BluetoothAdapter.LeScanCallback	Callback interface used to deliver LE scan results.
BluetoothAssignedNumbers	Bluetooth Assigned Numbers.
BluetoothClass	Represents a Bluetooth class, which describes general characteristics and capabilities of a device.
BluetoothClass.Device	Defines all device class constants.
BluetoothClass.Device.Major	Defines all major device class constants.
BluetoothClass.Service	Defines all service class constants.
BluetoothDevice	Represents a remote Bluetooth device.
BluetoothGatt	Public API for the Bluetooth GATT Profile.
BluetoothGattCallback	This abstract class is used to implement BluetoothGatt callbacks.
BluetoothGattCharacteristic	Represents a Bluetooth GATT Characteristic
	A GATT characteristic is a basic data element used to construct a GATT service, BluetoothGattService.
BluetoothGattDescriptor	Represents a Bluetooth GATT Descriptor
	GATT Descriptors contain additional information and attributes of a GATT characteristic, BluetoothGattCharacteristic.
BluetoothGattServer	Public API for the Bluetooth GATT Profile server role.
BluetoothGattServerCallback	This abstract class is used to implement BluetoothGattServer callbacks.
BluetoothGattService	Represents a Bluetooth GATT Service
	Gatt Service contains a collection of BluetoothGattCharacteristic, as well as referenced services.
BluetoothHeadset	Public API for controlling the Bluetooth Headset Service.
BluetoothHealth	Public API for Bluetooth Health Profile.
BluetoothHealthAppConfiguration	The Bluetooth Health Application Configuration that is used in conjunction with the BluetoothHealth class.
BluetoothHealthCallback	This abstract class is used to implement BluetoothHealth callbacks.
BluetoothManager	High level manager used to obtain an instance of an BluetoothAdapter and to conduct overall Bluetooth Management.
BluetoothProfile	Public APIs for the Bluetooth Profiles.
BluetoothProfile.ServiceListener	An interface for notifying BluetoothProfile IPC clients when they have been connected or disconnected to the service.
BluetoothServerSocket	A listening Bluetooth socket.
BluetoothSocket	A connected or connecting Bluetooth socket.
BlurMaskFilter	This takes a mask, and blurs its edge by the specified radius.
BlurMaskFilter.Blur
Boolean	The wrapper for the primitive type boolean.
BoringLayout	A BoringLayout is a very simple Layout implementation for text that fits on a single line and is all left-to-right characters.
BoringLayout.Metrics
BounceInterpolator	An interpolator where the change bounces at the end.
BreakIterator	Locates boundaries in text.
BroadcastReceiver	Base class for code that will receive intents sent by sendBroadcast().
BroadcastReceiver.PendingResult	State for a result that is pending for a broadcast receiver.
BrokenBarrierException	Exception thrown when a thread tries to wait upon a barrier that is in a broken state, or which enters the broken state while the thread is waiting.
Browser
Browser.BookmarkColumns	Column definitions for the mixed bookmark and history items available at BOOKMARKS_URI.
Browser.SearchColumns	Column definitions for the search history table, available at SEARCHES_URI.
BrowserCompatHostnameVerifier	The HostnameVerifier that works the same way as Curl and Firefox.
BrowserCompatSpec	Cookie specification that strives to closely mimic (mis)behavior of common web browser applications such as Microsoft Internet Explorer and Mozilla FireFox.
BrowserCompatSpecFactory
Buffer	A buffer is a list of elements of a specific primitive type.
BufferedHeader	This class represents a raw HTTP header whose content is parsed ‘on demand’ only when the header value needs to be consumed.
BufferedHttpEntity	A wrapping entity that buffers it content if necessary.
BufferedInputStream	Wraps an existing InputStream and buffers the input.
BufferedOutputStream	Wraps an existing OutputStream and buffers the output.
BufferedReader	Wraps an existing Reader and buffers the input.
BufferedWriter	Wraps an existing Writer and buffers the output.
BufferOverflowException	A BufferOverflowException is thrown when elements are written to a buffer but there is not enough remaining space in the buffer.
BufferUnderflowException	A BufferUnderflowException is thrown when elements are read from a buffer but there are not enough remaining elements in the buffer.
Build	Information about the current build, extracted from system properties.
Build.VERSION	Various version strings.
Build.VERSION_CODES	Enumeration of the currently known SDK version codes.
BulletSpan
Bundle	A mapping from String values to various Parcelable types.
Button	Represents a push-button widget.
Byte	The wrapper for the primitive type byte.
Byte2	Class for exposing the native RenderScript byte2 type back to the Android system.
Byte2	Class for exposing the native RenderScript byte2 type back to the Android system.
Byte3	Class for exposing the native RenderScript byte3 type back to the Android system.
Byte3	Class for exposing the native RenderScript byte3 type back to the Android system.
Byte4	Class for exposing the native RenderScript byte4 type back to the Android system.
Byte4	Class for exposing the native RenderScript byte4 type back to the Android system.
ByteArrayBuffer	A resizable byte array.
ByteArrayEntity	An entity whose content is retrieved from a byte array.
ByteArrayInputStream	A specialized InputStream for reading the contents of a byte array.
ByteArrayOutputStream	A specialized OutputStream for class for writing content to an (internal) byte array.
ByteBuffer	A buffer for bytes.
ByteChannel	A ByteChannel is both readable and writable.
ByteOrder	Defines byte order constants.
C
CacheRequest	CacheRequest is a kind of channel for storing resource data in the ResponseCache.
CacheResponse	A response cache entry.
Calendar	Calendar is an abstract base class for converting between a Date object and a set of integer fields such as YEAR, MONTH, DAY, HOUR, and so on.
CalendarContract	The contract between the calendar provider and applications.
CalendarContract.Attendees	Fields and helpers for interacting with Attendees.
CalendarContract.AttendeesColumns	Columns from the Attendees table that other tables join into themselves.
CalendarContract.CalendarAlerts	Fields and helpers for accessing calendar alerts information.
CalendarContract.CalendarAlertsColumns
CalendarContract.CalendarCache	CalendarCache stores some settings for calendar including the current time zone for the instances.
CalendarContract.CalendarCacheColumns
CalendarContract.CalendarColumns	Columns specific to the Calendars Uri that other Uris can query.
CalendarContract.CalendarEntity	Class that represents a Calendar Entity.
CalendarContract.Calendars	Constants and helpers for the Calendars table, which contains details for individual calendars.
CalendarContract.CalendarSyncColumns	Generic columns for use by sync adapters.
CalendarContract.Colors	Fields for accessing colors available for a given account.
CalendarContract.ColorsColumns
CalendarContract.EventDays	Fields and helpers for querying for a list of days that contain events.
CalendarContract.EventDaysColumns
CalendarContract.Events	Constants and helpers for the Events table, which contains details for individual events.
CalendarContract.EventsColumns	Columns from the Events table that other tables join into themselves.
CalendarContract.EventsEntity	Class that represents an Event Entity.
CalendarContract.ExtendedProperties	Fields for accessing the Extended Properties.
CalendarContract.ExtendedPropertiesColumns
CalendarContract.Instances	Fields and helpers for interacting with Instances.
CalendarContract.Reminders	Fields and helpers for accessing reminders for an event.
CalendarContract.RemindersColumns
CalendarContract.SyncColumns	Columns for Sync information used by Calendars and Events tables.
CalendarContract.SyncState	A table provided for sync adapters to use for storing private sync state data.
CalendarView	This class is a calendar widget for displaying and selecting dates.
CalendarView.OnDateChangeListener	The callback used to indicate the user changes the date.
Callable	A task that returns a result and may throw an exception.
CallableStatement	An interface used to call Stored Procedures.
Callback	Defines an empty base interface for all Callbacks used during authentication.
CallbackHandler	Needs to be implemented by classes that want to handle authentication Callbacks.
CallLog	The CallLog provider contains information about placed and received calls.
CallLog.Calls	Contains the recent calls.
CamcorderProfile	Retrieves the predefined camcorder profile settings for camcorder applications.
Camera	A camera instance can be used to compute 3D transformations and generate a matrix that can be applied, for instance, on a Canvas.
Camera	The Camera class is used to set image capture settings, start/stop preview, snap pictures, and retrieve frames for encoding for video.
Camera.Area	The Area class is used for choosing specific metering and focus areas for the camera to use when calculating auto-exposure, auto-white balance, and auto-focus.
Camera.AutoFocusCallback	Callback interface used to notify on completion of camera auto focus.
Camera.AutoFocusMoveCallback	Callback interface used to notify on auto focus start and stop.
Camera.CameraInfo	Information about a camera
Camera.ErrorCallback	Callback interface for camera error notification.
Camera.Face	Information about a face identified through camera face detection.
Camera.FaceDetectionListener	Callback interface for face detected in the preview frame.
Camera.OnZoomChangeListener	Callback interface for zoom changes during a smooth zoom operation.
Camera.Parameters	Camera service settings.
Camera.PictureCallback	Callback interface used to supply image data from a photo capture.
Camera.PreviewCallback	Callback interface used to deliver copies of preview frames as they are displayed.
Camera.ShutterCallback	Callback interface used to signal the moment of actual image capture.
Camera.Size	Image size (width and height dimensions).
CameraProfile	The CameraProfile class is used to retrieve the pre-defined still image capture (jpeg) quality levels (0-100) used for low, medium, and high quality settings in the Camera application.
CancellationException	Exception indicating that the result of a value-producing task, such as a FutureTask, cannot be retrieved because the task was cancelled.
CancellationSignal	Provides the ability to cancel an operation in progress.
CancellationSignal.OnCancelListener	Listens for cancellation.
CancelledKeyException	A CancelledKeyException is thrown when an invalid selection key is used.
Canvas	The Canvas class holds the “draw” calls.
Canvas.EdgeType
Canvas.VertexMode
CaptioningManager	Contains methods for accessing and monitoring preferred video captioning state and visual properties.
CaptioningManager.CaptioningChangeListener	Listener for changes in captioning properties, including enabled state and user style preferences.
CaptioningManager.CaptionStyle	Specifies visual properties for video captions, including foreground and background colors, edge properties, and typeface.
CardEmulation	This class can be used to query the state of NFC card emulation services.
CDATASection	CDATA sections are used to escape blocks of text containing characters that would otherwise be regarded as markup.
CdmaCellLocation	Represents the cell location on a CDMA phone.
CellIdentityCdma	CellIdentity is to represent a unique CDMA cell
CellIdentityGsm	CellIdentity to represent a unique GSM cell
CellIdentityLte	CellIdentity is to represent a unique LTE cell
CellIdentityWcdma	CellIdentity to represent a unique UMTS cell
CellInfo	Immutable cell information from a point in time.
CellInfoCdma	Immutable cell information from a point in time.
CellInfoGsm	Immutable cell information from a point in time.
CellInfoLte	Immutable cell information from a point in time.
CellInfoWcdma	Immutable cell information from a point in time.
CellLocation	Abstract class that represents the location of the device.
CellSignalStrength	Abstract base class for cell phone signal strength related information.
CellSignalStrengthCdma	LTE signal strength related information.
CellSignalStrengthGsm	GSM signal strength related information.
CellSignalStrengthLte	LTE signal strength related information.
CellSignalStrengthWcdma	Wcdma signal strength related information.
Certificate	This interface was deprecated in API level 1. Use Certificate instead.
Certificate	Abstract class to represent identity certificates.
Certificate	Abstract class to represent identity certificates.
Certificate.CertificateRep	The alternate Serializable class to be used for serialization and deserialization of Certificate objects.
CertificateEncodingException	The exception that is thrown when an error occurs while a Certificate is being encoded.
CertificateEncodingException	The exception that is thrown when an error occurs while a Certificate is being encoded.
CertificateException	The base class for all Certificate related exceptions.
CertificateException	The base class for all Certificate related exceptions.
CertificateExpiredException	The exception that is thrown when a Certificate has expired.
CertificateExpiredException	The exception that is thrown when a Certificate has expired.
CertificateFactory	This class implements the functionality of a certificate factory algorithm, relying on parsing a stream of bytes.
CertificateFactorySpi	This class defines the Service Provider Interface (SPI) for the CertificateFactory class.
CertificateNotYetValidException	The exception that is thrown when a Certificate is not yet valid or will not yet be valid on a specified date.
CertificateNotYetValidException	The exception that is thrown when a Certificate is not yet valid.
CertificateParsingException	The exception that is thrown when a Certificate can not be parsed.
CertificateParsingException	The exception that is thrown when a Certificate can not be parsed.
CertPath	An immutable certificate path that can be validated.
CertPath.CertPathRep	The alternate Serializable class to be used for serialization and deserialization on CertPath objects.
CertPathBuilder	This class implements the functionality of a builder for an unverified Certification Paths from a specified certificate to a trust anchor.
CertPathBuilderException	The exception that is thrown when a CertPathBuilder method fails.
CertPathBuilderResult	The interface for results generated by build(CertPathParameters).
CertPathBuilderSpi	The Service Provider Interface (SPI) for the CertPathBuilder class to be implemented by security providers.
CertPathParameters	The interface specification for certification path algorithm parameters.
CertPathTrustManagerParameters	Certification path parameters to provide to certification path based TrustManager.
CertPathValidator	This class provides the functionality for validating certification paths (certificate chains) establishing a trust chain from a certificate to a trust anchor.
CertPathValidatorException	The exception that is thrown when a certification path (or certificate chain) cannot be validated.
CertPathValidatorResult	The interface specification for certification path validation results.
CertPathValidatorSpi	The Service Provider Interface (SPI) for the CertPathValidator class to be implemented by security providers.
CertSelector	The interface specification to determine whether a Certificate meets some criteria.
CertStore	This class provides the functionality to retrieve Certificates and CRLs from a read-only repository.
CertStoreException	The exception that is thrown when an access to a CertStore fails.
CertStoreParameters	The marker interface specifying the parameters used to initialize a CertStore instance.
CertStoreSpi	The Service Provider Interface (SPI) definition for the CertStore class to be implemented by security providers.
ChangeBounds	This transition captures the layout bounds of target views before and after the scene change and animates those changes during the transition.
Channel	A channel is a conduit to I/O services covering such items as files, sockets, hardware devices, I/O ports or some software component.
Channels	This class provides several utilities to get I/O streams from channels.
Character	The wrapper for the primitive type char.
Character.Subset
Character.UnicodeBlock	Represents a block of Unicode characters.
CharacterCodingException	A CharacterCodingException is thrown when an encoding or decoding error occurs.
CharacterData	The CharacterData interface extends Node with a set of attributes and methods for accessing character data in the DOM.
CharacterIterator	An interface for the bidirectional iteration over a group of characters.
CharacterPickerDialog	Dialog for choosing accented characters related to a base character.
CharacterStyle	The classes that affect character-level text formatting extend this class.
CharArrayBuffer	This is used for copyStringToBuffer(int, CharArrayBuffer)
CharArrayBuffer	A resizable char array.
CharArrayReader	A specialized Reader for reading the contents of a char array.
CharArrayWriter	A specialized Writer for class for writing content to an (internal) char array.
CharBuffer	A buffer of chars.
CharConversionException	The top level class for character conversion exceptions.
CharSequence	This interface represents an ordered set of characters and defines the methods to probe them.
Charset	A charset is a named mapping between Unicode characters and byte sequences.
CharsetDecoder	A converter that can convert a byte sequence from a charset into a 16-bit Unicode character sequence.
CharsetEncoder	Transforms a sequence of 16-bit Java characters to a byte sequence in some encoding.
CharsetProvider	The service provider class for character sets.
Checkable	Defines an extension for views that make them checkable.
CheckBox	A checkbox is a specific type of two-states button that can be either checked or unchecked.
CheckBoxPreference	A Preference that provides checkbox widget functionality.
CheckedInputStream	The CheckedInputStream class is used to maintain a checksum at the same time as the data, on which the checksum is computed, is read from a stream.
CheckedOutputStream	The CheckedOutputStream class is used to maintain a running checksum of all data written to a stream.
CheckedTextView	An extension to TextView that supports the Checkable interface.
Checksum	The interface common to checksum classes such as Adler32 and CRC32.
ChoiceFormat	Returns a fixed string based on a numeric value.
Choreographer	Coordinates the timing of animations, input and drawing.
Choreographer.FrameCallback	Implement this interface to receive a callback when a new display frame is being rendered.
Chronometer	Class that implements a simple timer.
Chronometer.OnChronometerTickListener	A callback that notifies when the chronometer has incremented on its own.
ChunkedInputStream	Implements chunked transfer coding.
ChunkedOutputStream	Implements chunked transfer coding.
Cipher	This class provides access to implementations of cryptographic ciphers for encryption and decryption.
CipherInputStream	This class wraps an InputStream and a cipher so that read() methods return data that are read from the underlying InputStream and processed by the cipher.
CipherOutputStream	This class wraps an output stream and a cipher so that write methods send the data through the cipher before writing them to the underlying output stream.
CipherSpi	This class defines the Service Provider Interface (SPI) for cryptographic ciphers.
CircularRedirectException	Signals a circular redirect
Class	The in-memory representation of a Java class.
ClassCastException	Thrown when a program attempts to cast a an object to a type with which it is not compatible.
ClassCircularityError	Thrown when the VM notices that an attempt is made to load a class which would directly or indirectly inherit from one of its subclasses.
ClassFormatError	Thrown by a class loader when a class file has an illegal format or if the data that it contains can not be interpreted as a class.
ClassLoader	Loads classes and resources from a repository.
ClassNotFoundException	Thrown when a class loader is unable to find a class.
ClickableSpan	If an object of this type is attached to the text of a TextView with a movement method of LinkMovementMethod, the affected spans of text can be selected.
ClientConnectionManager	Management interface for client connections.
ClientConnectionManagerFactory	A factory for creating new ClientConnectionManager instances.
ClientConnectionOperator	Interface for opening connections.
ClientConnectionRequest	Encapsulates a request for a ManagedClientConnection.
ClientContext	Context attribute names for client.
ClientContextConfigurer
ClientCookie	ClientCookie extends the standard Cookie interface with additional client specific functionality such ability to retrieve original cookie attributes exactly as they were specified by the origin server.
ClientInfoStatus	An enumeration to describe the reason why a property cannot be set by calling Connection.setClientInfo.
ClientParamBean
ClientParamsStack	Represents a stack of parameter collections.
ClientPNames	Parameter names for the HttpClient module.
ClientProtocolException	Signals an error in the HTTP protocol.
ClipboardManager	Interface to the clipboard service, for placing and retrieving text in the global clipboard.
ClipboardManager	This class was deprecated in API level 11. Old text-only interface to the clipboard. See ClipboardManager for the modern API.
ClipboardManager.OnPrimaryClipChangedListener	Defines a listener callback that is invoked when the primary clip on the clipboard changes.
ClipData	Representation of a clipped data on the clipboard.
ClipData.Item	Description of a single item in a ClippedData.
ClipDescription	Meta-data describing the contents of a ClipData.
ClipDrawable	A Drawable that clips another Drawable based on this Drawable’s current level value.
Clob	A Java interface mapping for the SQL CLOB type.
Cloneable	This (empty) interface must be implemented by all classes that wish to support cloning.
CloneNotSupportedException	Thrown when a program attempts to clone an object which does not support the Cloneable interface.
CloneUtils	A collection of utilities to workaround limitations of Java clone framework.
Closeable	An AutoCloseable whose close method may throw an IOException.
ClosedByInterruptException	A ClosedByInterruptException is thrown when a thread is interrupted in a blocking I/O operation.
ClosedChannelException	A ClosedChannelException is thrown when a channel is closed for the type of operation attempted.
ClosedSelectorException	A ClosedSelectorException is thrown when a selector is closed and an I/O operation is attempted.
CoderMalfunctionError	A CoderMalfunctionError is thrown when the encoder/decoder is malfunctioning.
CoderResult	Used to indicate the result of encoding/decoding.
CodeSigner	CodeSigner represents a signer of code.
CodeSource	Legacy security code; do not use.
CodingErrorAction	Used to indicate what kind of actions to take in case of encoding/decoding errors.
CollapsibleActionView	When a View implements this interface it will receive callbacks when expanded or collapsed as an action view alongside the optional, app-specified callbacks to MenuItemCompat.OnActionExpandListener.
CollapsibleActionView	When a View implements this interface it will receive callbacks when expanded or collapsed as an action view alongside the optional, app-specified callbacks to MenuItem.OnActionExpandListener.
CollationElementIterator	Created by a RuleBasedCollator to iterate through a string.
CollationKey	Represents a string under the rules of a specific Collator object.
Collator	Performs locale-sensitive string comparison.
Collection	Collection is the root of the collection hierarchy.
CollectionCertStoreParameters	The parameters to initialize a Collection type CertStore instance.
Collections	Collections contains static methods which operate on Collection classes.
Color	The Color class defines methods for creating and converting color ints.
ColorDrawable	A specialized Drawable that fills the Canvas with a specified color.
ColorFilter
ColorMatrix	5x4 matrix for transforming the color+alpha components of a Bitmap.
ColorMatrixColorFilter
ColorStateList	Lets you map View state sets to colors.
Comment	This interface inherits from CharacterData and represents the content of a comment, i.e., all the characters between the starting ’ '.
CommonDataSource	Interface that defines the methods which are common between DataSource, XADataSource and ConnectionPoolDataSource.
Comparable	This interface should be implemented by all classes that wish to define a natural order of their instances.
Comparator	A Comparator is used to compare two objects to determine their ordering with respect to each other.
ComparisonFailure	This class was deprecated in API level 16. use junit.framework.ComparisonFailure
ComparisonFailure	Thrown when an assert equals for Strings failed.
Compiler	Does nothing on Android.
CompletionInfo	Information about a single text completion that an editor has reported to an input method.
CompletionService	A service that decouples the production of new asynchronous tasks from the consumption of the results of completed tasks.
ComponentCallbacks	The set of callback APIs that are common to all application components (Activity, Service, ContentProvider, and Application).
ComponentCallbacks2	Extended ComponentCallbacks interface with a new callback for finer-grained memory management.
ComponentInfo	Base class containing information common to all application components (ActivityInfo, ServiceInfo).
ComponentName	Identifier for a specific application component (Activity, Service, BroadcastReceiver, or ContentProvider) that is available.
ComposePathEffect
ComposeShader	A subclass of shader that returns the composition of two other shaders, combined by an Xfermode subclass.
CompoundButton	A button with two states, checked and unchecked.
CompoundButton.OnCheckedChangeListener	Interface definition for a callback to be invoked when the checked state of a compound button changed.
ConcurrentHashMap	A hash table supporting full concurrency of retrievals and adjustable expected concurrency for updates.
ConcurrentLinkedQueue	An unbounded thread-safe queue based on linked nodes.
ConcurrentMap	A Map providing additional atomic putIfAbsent, remove, and replace methods.
ConcurrentModificationException	An ConcurrentModificationException is thrown when a Collection is modified and an existing iterator on the Collection is used to modify the Collection as well.
ConcurrentNavigableMap	A ConcurrentMap supporting NavigableMap operations, and recursively so for its navigable sub-maps.
ConcurrentSkipListMap	A scalable concurrent ConcurrentNavigableMap implementation.
ConcurrentSkipListSet	A scalable concurrent NavigableSet implementation based on a ConcurrentSkipListMap.
Condition	Condition factors out the Object monitor methods (wait, notify and notifyAll) into distinct objects to give the effect of having multiple wait-sets per object, by combining them with the use of arbitrary Lock implementations.
ConditionVariable	Class that implements the condition variable locking paradigm.
Config	This class was deprecated in API level 14. This class is not useful, it just returns the same value for all constants, and has always done this. Do not use it.
Configuration	This class describes all device configuration information that can impact the resources the application retrieves.
ConfigurationInfo	Information you can retrieve about hardware configuration preferences declared by an application.
ConnConnectionParamBean	Allows for setting parameters relating to connections on HttpParams.
ConnConnectionPNames	Parameter names for connections in HttpConn.
ConnectException	A ConnectException is thrown if a connection cannot be established to a remote host on a specific port.
Connection	A connection represents a link from a Java application to a database.
ConnectionClosedException	Indicates that a connection has been closed.
ConnectionEvent	Sent when specific events happen on a PooledConnection object.
ConnectionEventListener	An interface used to receive events generated by a PooledConnection.
ConnectionKeepAliveStrategy	Interface for deciding how long a connection can remain idle before being reused.
ConnectionPendingException	A ConnectionPendingException is thrown when an attempt is made to connect a SocketChannel that has a non-blocking connection already underway.
ConnectionPoolDataSource	An interface for the creation of ConnectionPoolDataSource objects.
ConnectionPoolTimeoutException	A timeout while waiting for an available connection from a connection manager.
ConnectionReleaseTrigger	Interface for releasing a connection.
ConnectionReuseStrategy	Interface for deciding whether a connection should be kept alive.
ConnectivityManager	Class that answers queries about the state of network connectivity.
ConnectivityManagerCompat	Helper for accessing features in ConnectivityManager introduced after API level 16 in a backwards compatible fashion.
ConnectTimeoutException	A timeout while connecting to an HTTP server or waiting for an available connection from an HttpConnectionManager.
ConnManagerParamBean	Allows for setting parameters relating to connection managers on HttpParams.
ConnManagerParams	This class represents a collection of HTTP protocol parameters applicable to client-side connection managers.
ConnManagerPNames	Parameter names for connection managers in HttpConn.
ConnPerRoute	This interface is intended for looking up maximum number of connections allowed for for a given route.
ConnPerRouteBean	This class maintains a map of HTTP routes to maximum number of connections allowed for those routes.
ConnPoolByRoute	A connection pool that maintains connections by route.
ConnRouteParamBean	Allows for setting parameters relating to connection routes on HttpParams.
ConnRouteParams	An adaptor for accessing route related parameters in HttpParams.
ConnRoutePNames	Parameter names for routing in HttpConn.
Console	Provides access to the console, if available.
ConsoleHandler	A handler that writes log messages to the standard output stream System.err.
ConsoleMessage	Public class representing a JavaScript console message from WebCore.
ConsoleMessage.MessageLevel
Constructor	This class represents a constructor.
ConsumerIrManager	Class that operates consumer infrared on the device.
ConsumerIrManager.CarrierFrequencyRange	Represents a range of carrier frequencies (inclusive) on which the infrared transmitter can transmit
Contacts	This class was deprecated in API level 5. The APIs have been superseded by ContactsContract. The newer APIs allow access multiple accounts and support aggregation of similar contacts. These APIs continue to work but will only return data for the first Google account created, which matches the original behavior.
Contacts.ContactMethods	This class was deprecated in API level 5. see ContactsContract
Contacts.ContactMethodsColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.Extensions	This class was deprecated in API level 5. see ContactsContract
Contacts.ExtensionsColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.GroupMembership	This class was deprecated in API level 5. see ContactsContract
Contacts.Groups	This class was deprecated in API level 5. see ContactsContract
Contacts.GroupsColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.Intents	This class was deprecated in API level 5. see ContactsContract
Contacts.Intents.Insert	This class was deprecated in API level 5. see ContactsContract
Contacts.Intents.UI	This class was deprecated in API level 5. see ContactsContract
Contacts.OrganizationColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.Organizations	This class was deprecated in API level 5. see ContactsContract
Contacts.People	This class was deprecated in API level 5. see ContactsContract
Contacts.People.ContactMethods	This class was deprecated in API level 5. see ContactsContract
Contacts.People.Extensions	This class was deprecated in API level 5. see ContactsContract
Contacts.People.Phones	This class was deprecated in API level 5. see ContactsContract
Contacts.PeopleColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.Phones	This class was deprecated in API level 5. see ContactsContract
Contacts.PhonesColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.Photos	This class was deprecated in API level 5. see ContactsContract
Contacts.PhotosColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.PresenceColumns	This interface was deprecated in API level 5. see ContactsContract
Contacts.Settings	This class was deprecated in API level 5. see ContactsContract
Contacts.SettingsColumns	This interface was deprecated in API level 5. see ContactsContract
ContactsContract	The contract between the contacts provider and applications.
ContactsContract.AggregationExceptions	Constants for the contact aggregation exceptions table, which contains aggregation rules overriding those used by automatic aggregation.
ContactsContract.BaseSyncColumns	Generic columns for use by sync adapters.
ContactsContract.CommonDataKinds	Container for definitions of common data types stored in the ContactsContract.Data table.
ContactsContract.CommonDataKinds.BaseTypes	The base types that all “Typed” data kinds support.
ContactsContract.CommonDataKinds.CommonColumns	Columns common across the specific types.
ContactsContract.CommonDataKinds.Contactables	A special class of data items, used to refer to types of data that can be used to attempt to start communicating with a person (ContactsContract.CommonDataKinds.Phone and ContactsContract.CommonDataKinds.Email).
ContactsContract.CommonDataKinds.Email	A data kind representing an email address.
ContactsContract.CommonDataKinds.Event	A data kind representing an event.
ContactsContract.CommonDataKinds.GroupMembership	Group Membership.
ContactsContract.CommonDataKinds.Identity	A data kind representing an Identity related to the contact.
ContactsContract.CommonDataKinds.Im	A data kind representing an IM address
	You can use all columns defined for ContactsContract.Data as well as the following aliases.
ContactsContract.CommonDataKinds.Nickname	A data kind representing the contact’s nickname.
ContactsContract.CommonDataKinds.Note	Notes about the contact.
ContactsContract.CommonDataKinds.Organization	A data kind representing an organization.
ContactsContract.CommonDataKinds.Phone	A data kind representing a telephone number.
ContactsContract.CommonDataKinds.Photo	A data kind representing a photo for the contact.
ContactsContract.CommonDataKinds.Relation	A data kind representing a relation.
ContactsContract.CommonDataKinds.SipAddress	A data kind representing a SIP address for the contact.
ContactsContract.CommonDataKinds.StructuredName	A data kind representing the contact’s proper name.
ContactsContract.CommonDataKinds.StructuredPostal	A data kind representing a postal addresses.
ContactsContract.CommonDataKinds.Website	A data kind representing a website related to the contact.
ContactsContract.ContactNameColumns	Contact name and contact name metadata columns in the RawContacts table.
ContactsContract.ContactOptionsColumns	Columns of ContactsContract.Contacts that track the user’s preferences for, or interactions with, the contact.
ContactsContract.Contacts	Constants for the contacts table, which contains a record per aggregate of raw contacts representing the same person.
ContactsContract.Contacts.AggregationSuggestions	A read-only sub-directory of a single contact aggregate that contains all aggregation suggestions (other contacts).
ContactsContract.Contacts.Data	A sub-directory of a single contact that contains all of the constituent raw contact ContactsContract.Data rows.
ContactsContract.Contacts.Entity	A sub-directory of a contact that contains all of its ContactsContract.RawContacts as well as ContactsContract.Data rows.
ContactsContract.Contacts.Photo	A read-only sub-directory of a single contact that contains the contact’s primary photo.
ContactsContract.Contacts.StreamItems	A sub-directory of a single contact that contains all of the constituent raw contact ContactsContract.StreamItems rows.
ContactsContract.ContactsColumns	Columns of ContactsContract.Contacts that refer to intrinsic properties of the contact, as opposed to the user-specified options found in ContactsContract.ContactOptionsColumns.
ContactsContract.ContactStatusColumns
ContactsContract.Data	Constants for the data table, which contains data points tied to a raw contact.
ContactsContract.DataColumns	Columns in the Data table.
ContactsContract.DataColumnsWithJoins	Combines all columns returned by ContactsContract.Data table queries.
ContactsContract.DataUsageFeedback	API allowing applications to send usage information for each ContactsContract.Contacts.Data row to the Contacts Provider.
ContactsContract.DataUsageStatColumns	Columns in the Data_Usage_Stat table
ContactsContract.DeletedContacts	Constants for the deleted contact table.
ContactsContract.DeletedContactsColumns
ContactsContract.Directory	A Directory represents a contacts corpus, e.g.
ContactsContract.DisplayNameSources	Types of data used to produce the display name for a contact.
ContactsContract.DisplayPhoto	Helper class for accessing full-size photos by photo file ID.
ContactsContract.FullNameStyle	Constants for various styles of combining given name, family name etc into a full name.
ContactsContract.Groups	Constants for the groups table.
ContactsContract.GroupsColumns
ContactsContract.Intents	Contains helper classes used to create or manage Intents that involve contacts.
ContactsContract.Intents.Insert	Convenience class that contains string constants used to create contact Intents.
ContactsContract.PhoneLookup	A table that represents the result of looking up a phone number, for example for caller ID.
ContactsContract.PhoneLookupColumns
ContactsContract.PhoneticNameStyle	Constants for various styles of capturing the pronunciation of a person’s name.
ContactsContract.Presence	This class was deprecated in API level 5. This old name was never meant to be made public. Do not use.
ContactsContract.PresenceColumns	Additional data mixed in with ContactsContract.ContactStatusColumns to link back to specific _ID entries.
ContactsContract.Profile	Constants for the user’s profile data, which is represented as a single contact on the device that represents the user.
ContactsContract.ProfileSyncState	A table provided for sync adapters to use for storing private sync state data for the user’s personal profile.
ContactsContract.QuickContact	Helper methods to display QuickContact dialogs that allow users to pivot on a specific Contacts entry.
ContactsContract.RawContacts	Constants for the raw contacts table, which contains one row of contact information for each person in each synced account.
ContactsContract.RawContacts.Data	A sub-directory of a single raw contact that contains all of its ContactsContract.Data rows.
ContactsContract.RawContacts.DisplayPhoto	A sub-directory of a single raw contact that represents its primary display photo.
ContactsContract.RawContacts.Entity	A sub-directory of a single raw contact that contains all of its ContactsContract.Data rows.
ContactsContract.RawContacts.StreamItems	A sub-directory of a single raw contact that contains all of its ContactsContract.StreamItems rows.
ContactsContract.RawContactsColumns
ContactsContract.RawContactsEntity	Constants for the raw contacts entities table, which can be thought of as an outer join of the raw_contacts table with the data table.
ContactsContract.Settings	Contacts-specific settings for various Account’s.
ContactsContract.SettingsColumns
ContactsContract.StatusColumns	Social status update columns.
ContactsContract.StatusUpdates	A status update is linked to a ContactsContract.Data row and captures the user’s latest status update via the corresponding source, e.g.
ContactsContract.StreamItemPhotos	Constants for the stream_item_photos table, which contains photos associated with social stream updates.
ContactsContract.StreamItemPhotosColumns	Columns in the StreamItemPhotos table.
ContactsContract.StreamItems	Constants for the stream_items table, which contains social stream updates from the user’s contact list.
ContactsContract.StreamItems.StreamItemPhotos	A sub-directory of a single stream item entry that contains all of its photo rows.
ContactsContract.StreamItemsColumns	Columns in the StreamItems table.
ContactsContract.SyncColumns	Columns that appear when each row of a table belongs to a specific account, including sync information that an account may need.
ContactsContract.SyncState	A table provided for sync adapters to use for storing private sync state data for contacts.
ContentHandler	This class converts the content of a certain format (i.e.
ContentHandler	Receive notification of the logical content of a document.
ContentHandlerFactory	Defines a factory which is responsible for creating a ContentHandler.
ContentLengthInputStream	Stream that cuts off after a specified number of bytes.
ContentLengthOutputStream	A stream wrapper that closes itself after a defined number of bytes.
ContentLengthStrategy	Represents a strategy to determine the content length based on the properties of an HTTP message.
ContentLoadingProgressBar	ContentLoadingProgressBar implements a ProgressBar that waits a minimum time to be dismissed before showing.
ContentObservable	A specialization of Observable for ContentObserver that provides methods for sending notifications to a list of ContentObserver objects.
ContentObserver	Receives call backs for changes to content.
ContentProducer	An abstract entity content producer.
ContentProvider	Content providers are one of the primary building blocks of Android applications, providing content to applications.
ContentProvider.PipeDataWriter	Interface to write a stream of data to a pipe.
ContentProviderClient	The public interface object used to interact with a ContentProvider.
ContentProviderOperation
ContentProviderOperation.Builder	Used to add parameters to a ContentProviderOperation.
ContentProviderResult	Contains the result of the application of a ContentProviderOperation.
ContentQueryMap	Caches the contents of a cursor into a Map of String->ContentValues and optionally keeps the cache fresh by registering for updates on the content backing the cursor.
ContentResolver	This class provides applications access to the content model.
ContentUris	Utility methods useful for working with Uri objects that use the “content” (content://) scheme.
ContentValues	This class is used to store a set of values that the ContentResolver can process.
Context	Interface to global information about an application environment.
ContextCompat	Helper for accessing features in Context introduced after API level 4 in a backwards compatible fashion.
ContextMenu	Extension of Menu for context menus providing functionality to modify the header of the context menu.
ContextMenu.ContextMenuInfo	Additional information regarding the creation of the context menu.
ContextThemeWrapper	A ContextWrapper that allows you to modify the theme from what is in the wrapped context.
ContextWrapper	Proxying implementation of Context that simply delegates all of its calls to another Context.
Cookie	HTTP “magic-cookie” represents a piece of state information that the HTTP agent and the target server can exchange to maintain a session.
CookieAttributeHandler	Ths interface represents a cookie attribute handler responsible for parsing, validating, and matching a specific cookie attribute, such as path, domain, port, etc.
CookieHandler	This class provides a way to manage cookies with a HTTP protocol handler.
CookieIdentityComparator	This cookie comparator can be used to compare identity of cookies.
CookieManager	Manages the cookies used by an application’s WebView instances.
CookieManager	This class provides a concrete implementation of CookieHandler.
CookieOrigin	CookieOrigin class incapsulates details of an origin server that are relevant when parsing, validating or matching HTTP cookies.
CookiePathComparator	This cookie comparator ensures that multiple cookies satisfying a common criteria are ordered in the Cookie header such that those with more specific Path attributes precede those with less specific.
CookiePolicy	CookiePolicy has three pre-defined policy.
CookiePolicy
CookieSpec	Defines the cookie management specification.
CookieSpecBase	Cookie management functions shared by all specification.
CookieSpecFactory
CookieSpecParamBean
CookieSpecPNames	Parameter names for cookie specifications in HttpCookie.
CookieSpecRegistry	Cookie specification registry that can be used to obtain the corresponding cookie specification implementation for a given type of type or version of cookie.
CookieStore	A CookieStore object is a repository for cookies.
CookieStore	Abstract cookie store.
CookieSyncManager	The CookieSyncManager is used to synchronize the browser cookie store between RAM and permanent storage.
CopyOnWriteArrayList	A thread-safe random-access list.
CopyOnWriteArraySet	A Set that uses an internal CopyOnWriteArrayList for all of its operations.
CoreConnectionPNames	Defines parameter names for connections in HttpCore.
CoreProtocolPNames	Defines parameter names for protocol execution in HttpCore.
CornerPathEffect
CorrectionInfo	Information about a single text correction that an editor has reported to an input method.
CountDownLatch	A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.
CountDownTimer	Schedule a countdown until a time in the future, with regular notifications on intervals along the way.
CRC32	The CRC32 class is used to compute a CRC32 checksum from data provided as input value.
Credentials	A class for representing UNIX credentials passed via ancillary data on UNIX domain sockets.
Credentials	User name and password based authentication credentials.
CredentialsProvider	Abstract credentials provider.
Criteria	A class indicating the application criteria for selecting a location provider.
CRL	This class represents Certificate Revocation Lists (CRLs) maintained by a certificate authority.
CRLException	The exception that is thrown if errors occur during handling of CRLs.
CRLSelector	The interface specification for determining whether a CRL meets some criteria to select CRL objects among a set of CRLs.
CrossProcessCursor	A cross process cursor is an extension of a Cursor that also supports usage from remote processes.
CrossProcessCursorWrapper	Cursor wrapper that implements CrossProcessCursor.
Currency	A currency corresponding to an ISO 4217 currency code such as “EUR” or “USD”.
Cursor	This interface provides random read-write access to the result set returned by a database query.
CursorAdapter	Static library support version of the framework’s CursorAdapter.
CursorAdapter	Adapter that exposes data from a Cursor to a ListView widget.
CursorIndexOutOfBoundsException	An exception indicating that a cursor is out of bounds.
CursorJoiner	Does a join on two cursors using the specified columns.
CursorJoiner.Result	The result of a call to next().
CursorLoader	A loader that queries the ContentResolver and returns a Cursor.
CursorLoader	Static library support version of the framework’s CursorLoader.
CursorTreeAdapter	An adapter that exposes data from a series of Cursors to an ExpandableListView widget.
CursorWindow	A buffer containing multiple cursor rows.
CursorWrapper	Wrapper class for Cursor that delegates all calls to the actual cursor object.
CycleInterpolator	Repeats the animation for a specified number of cycles.
CyclicBarrier	A synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.
D
DashPathEffect
DatabaseErrorHandler	An interface to let the apps define the actions to take when the following errors are detected database corruption
DatabaseMetaData	An interface which provides comprehensive information about the database management system and its supported features.
DatabaseUtils	Static utility methods for dealing with databases and Cursors.
DatabaseUtils.InsertHelper	This class was deprecated in API level 17. Use SQLiteStatement instead.
DatabaseUtilsCompat	Helper for accessing features in DatabaseUtils introduced after API level 4 in a backwards compatible fashion.
DataFormatException	DataFormatException is used to indicate an error in the format of a particular data stream which is to be uncompressed.
DatagramChannel	A DatagramChannel is a selectable channel that represents a partial abstraction of a datagram socket.
DatagramPacket	This class represents a datagram packet which contains data either to be sent or received through a DatagramSocket.
DatagramSocket	This class implements a UDP socket for sending and receiving DatagramPacket.
DatagramSocketImpl	The abstract superclass for datagram and multicast socket implementations.
DatagramSocketImplFactory	This interface defines a factory for datagram socket implementations.
DataInput	Defines an interface for classes that are able to read big-endian typed data from some source.
DataInputStream	Wraps an existing InputStream and reads big-endian typed data from it.
DataOutput	Defines an interface for classes that are able to write big-endian typed data to some target.
DataOutputStream	Wraps an existing OutputStream and writes big-endian typed data to it.
DataSetObservable	A specialization of Observable for DataSetObserver that provides methods for sending notifications to a list of DataSetObserver objects.
DataSetObserver	Receives call backs when a data set has been changed, or made invalid.
DataSource	An interface for the creation of Connection objects which represent a connection to a database.
DataTruncation	An exception which is thrown when a JDBC driver unexpectedly truncates a data value either when reading (resulting in warning), or when writing data (resulting in an error).
DatatypeConfigurationException	Indicates a serious configuration error.
DatatypeConstants	Utility class to contain basic Datatype values as constants.
DatatypeConstants.Field	Type-safe enum class that represents six fields of the Duration class.
DatatypeFactory	Factory that creates new javax.xml.datatype Objects that map XML to/from Java Objects.
Date	A class which can consume and produce dates in SQL Date format.
Date	A specific moment in time, with millisecond precision.
DateFormat	Utility class for producing strings with formatted date/time.
DateFormat	Formats or parses dates and times.
DateFormat.Field	The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that the formatToCharacterIterator(Object) method returns.
DateFormatSymbols	Encapsulates localized date-time formatting data, such as the names of the months, the names of the days of the week, and the time zone data.
DateKeyListener	For entering dates in a text field.
DateParseException	An exception to indicate an error parsing a date string.
DatePicker	This class is a widget for selecting a date.
DatePicker.OnDateChangedListener	The callback used to indicate the user changes\d the date.
DatePickerDialog	A simple dialog containing an DatePicker.
DatePickerDialog.OnDateSetListener	The callback used to indicate the user is done filling in the date.
DateSorter	Sorts dates into the following groups: Today Yesterday seven days ago one month ago older than a month ago
DateTimeKeyListener	For entering dates and times in the same text field.
DateUtils	This class contains various date-related utilities for creating text for things like elapsed time and date ranges, strings for days of the week and months, and AM/PM text etc.
DateUtils	A utility class for parsing and formatting HTTP dates as used in cookies and other headers.
DeadObjectException	The object you are calling has died, because its hosting process no longer exists.
Debug	Provides various debugging methods for Android applications, including tracing and allocation counts.
Debug.InstructionCount	API for gathering and querying instruction counts.
Debug.MemoryInfo	This class is used to retrieved various statistics about the memory mappings for this process.
DebugUtils	Various utilities for debugging and logging.
DecelerateInterpolator	An interpolator where the rate of change starts out quickly and and then decelerates.
DecimalFormat	A concrete subclass of NumberFormat that formats decimal numbers.
DecimalFormatSymbols	Encapsulates the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by DecimalFormat to format numbers.
DeclHandler	SAX2 extension handler for DTD declaration events.
DefaultClientConnection	Default implementation of an operated client connection.
DefaultClientConnectionOperator	Default implementation of a ClientConnectionOperator.
DefaultConnectionKeepAliveStrategy	Default implementation of a strategy deciding duration that a connection can remain idle.
DefaultConnectionReuseStrategy	Default implementation of a strategy deciding about connection re-use.
DefaultDatabaseErrorHandler	Default class used to define the actions to take when the database corruption is reported by sqlite.
DefaultedHttpContext	HttpContext implementation that delegates resolution of an attribute to the given default HttpContext instance if the attribute is not present in the local one.
DefaultedHttpParams	HttpParams implementation that delegates resolution of a parameter to the given default HttpParams instance if the parameter is not present in the local one.
DefaultHandler	Default base class for SAX2 event handlers.
DefaultHandler2	This class extends the SAX2 base handler class to support the SAX2 LexicalHandler, DeclHandler, and EntityResolver2 extensions.
DefaultHttpClient	Default implementation of an HTTP client.
DefaultHttpClientConnection	Default implementation of a client-side HTTP connection.
DefaultHttpRequestFactory	Default implementation of a factory for creating request objects.
DefaultHttpRequestRetryHandler	The default HttpRequestRetryHandler used by request executors.
DefaultHttpResponseFactory	Default implementation of a factory for creating response objects.
DefaultHttpRoutePlanner	Default implementation of an HttpRoutePlanner.
DefaultHttpServerConnection	Default implementation of a server-side HTTP connection.
DefaultProxyAuthenticationHandler
DefaultRedirectHandler	Default implementation of RedirectHandler.
DefaultRequestDirector	Default implementation of RequestDirector.
DefaultResponseParser
DefaultTargetAuthenticationHandler
DefaultUserTokenHandler
Deflater	This class compresses data using the DEFLATE algorithm (see specification).
DeflaterInputStream	An InputStream filter to compress data.
DeflaterOutputStream	This class provides an implementation of FilterOutputStream that compresses data using the DEFLATE algorithm.
Delayed	A mix-in style interface for marking objects that should be acted upon after a given delay.
DelayQueue	An unbounded blocking queue of Delayed elements, in which an element can only be taken when its delay has expired.
DeniedByServerException	Exception thrown when the provisioning server or key server denies a certficate or license for a device.
Deprecated	Annotation type used to mark program elements that should no longer be used by programmers.
Deque	A linear collection that supports element insertion and removal at both ends.
DESedeKeySpec	The key specification for a triple-DES (DES-EDE) key.
DESKeySpec	The key specification for a DES key.
Destroyable	Allows for special treatment of sensitive information, when it comes to destroying or clearing of the data.
DestroyFailedException	Signals that the destroy() method failed.
DeviceAdminInfo	This class is used to specify meta information of a device administrator component.
DeviceAdminReceiver	Base class for implementing a device administration component.
DevicePolicyManager	Public interface for managing policies enforced on a device.
DexClassLoader	A class loader that loads classes from .jar and .apk files containing a classes.dex entry.
DexFile	Manipulates DEX files.
DhcpInfo	A simple object for retrieving the results of a DHCP request.
DHGenParameterSpec	The algorithm parameter specification for generating Diffie-Hellman parameters used in Diffie-Hellman key agreement.
DHKey	The interface for a Diffie-Hellman key.
DHParameterSpec	The algorithm parameter specification for the Diffie-Hellman algorithm.
DHPrivateKey	The interface for a private key in the Diffie-Hellman key exchange protocol.
DHPrivateKeySpec	The key specification for a Diffie-Hellman private key.
DHPublicKey	The interface for a public key in the Diffie-Hellman key exchange protocol.
DHPublicKeySpec	The key specification for a Diffie-Hellman public key.
DialerFilter
DialerKeyListener	For dialing-only text entry
	As for all implementations of KeyListener, this class is only concerned with hardware keyboards.
Dialog	Base class for Dialogs.
DialogFragment	A fragment that displays a dialog window, floating on top of its activity’s window.
DialogFragment	Static library support version of the framework’s DialogFragment.
DialogInterface
DialogInterface.OnCancelListener	Interface used to allow the creator of a dialog to run some code when the dialog is canceled.
DialogInterface.OnClickListener	Interface used to allow the creator of a dialog to run some code when an item on the dialog is clicked…
DialogInterface.OnDismissListener	Interface used to allow the creator of a dialog to run some code when the dialog is dismissed.
DialogInterface.OnKeyListener	Interface definition for a callback to be invoked when a key event is dispatched to this dialog.
DialogInterface.OnMultiChoiceClickListener	Interface used to allow the creator of a dialog to run some code when an item in a multi-choice dialog is clicked.
DialogInterface.OnShowListener	Interface used to allow the creator of a dialog to run some code when the dialog is shown.
DialogPreference	A base class for Preference objects that are dialog-based.
Dictionary	Note: Do not use this class since it is obsolete.
DigestException	DigestException is a general message digest exception.
DigestInputStream	DigestInputStream is a FilterInputStream which maintains an associated message digest.
DigestOutputStream	DigestOutputStream is a FilterOutputStream which maintains an associated message digest.
DigestScheme	Digest authentication scheme as defined in RFC 2617.
DigestSchemeFactory
DigitalClock	This class was deprecated in API level 17. It is recommended you use TextClock instead.
DigitsKeyListener	For digits-only text entry
	As for all implementations of KeyListener, this class is only concerned with hardware keyboards.
DiscretePathEffect
Display	Provides information about the size and density of a logical display.
DisplayManager	Manages the properties of attached displays.
DisplayManager.DisplayListener	Listens for changes in available display devices.
DisplayManagerCompat	Helper for accessing features in DisplayManager introduced after API level 4 in a backwards compatible fashion.
DisplayMetrics	A structure describing general information about a display, such as its size, density, and font scaling.
Document	The Document interface represents the entire HTML or XML document.
DocumentBuilder	Defines the API to obtain DOM Document instances from an XML document.
DocumentBuilderFactory	Defines a factory API that enables applications to obtain a parser that produces DOM object trees from XML documents.
Documented	Defines a meta-annotation for indicating that an annotation is documented and considered part of the public API.
DocumentFragment	DocumentFragment is a “lightweight” or “minimal” Document object.
DocumentHandler	This interface was deprecated in API level 1. This interface has been replaced by the SAX2 ContentHandler interface, which includes Namespace support.
DocumentsContract	Defines the contract between a documents provider and the platform.
DocumentsContract.Document	Constants related to a document, including Cursor column names and flags.
DocumentsContract.Root	Constants related to a root of documents, including Cursor column names and flags.
DocumentsProvider	Base class for a document provider.
DocumentType	Each Document has a doctype attribute whose value is either null or a DocumentType object.
DomainCombiner	Legacy security code; do not use.
DOMConfiguration	The DOMConfiguration interface represents the configuration of a document and maintains a table of recognized parameters.
DOMError	DOMError is an interface that describes an error.
DOMErrorHandler	DOMErrorHandler is a callback interface that the DOM implementation can call when reporting errors that happens while processing XML data, or when doing some other processing (e.g.
DOMException	DOM operations only raise exceptions in “exceptional” circumstances, i.e., when an operation is impossible to perform (either for logical reasons, because data is lost, or because the implementation has become unstable).
DOMImplementation	The DOMImplementation interface provides a number of methods for performing operations that are independent of any particular instance of the document object model.
DOMImplementationList	The DOMImplementationList interface provides the abstraction of an ordered collection of DOM implementations, without defining or constraining how this collection is implemented.
DOMImplementationLS	DOMImplementationLS contains the factory methods for creating Load and Save objects.
DOMImplementationSource	This interface permits a DOM implementer to supply one or more implementations, based upon requested features and versions, as specified in .
DOMLocator	Indicates the position of a node in a source DOM, intended primarily for error reporting.
DOMLocator	DOMLocator is an interface that describes a location (e.g.
DOMResult	Acts as a holder for a transformation result tree in the form of a Document Object Model (DOM) tree.
DOMSource	Acts as a holder for a transformation Source tree in the form of a Document Object Model (DOM) tree.
DOMStringList	The DOMStringList interface provides the abstraction of an ordered collection of DOMString values, without defining or constraining how this collection is implemented.
Double	The wrapper for the primitive type double.
Double2	Class for exposing the native RenderScript double2 type back to the Android system.
Double2	Class for exposing the native RenderScript double2 type back to the Android system.
Double3	Class for exposing the native RenderScript double3 type back to the Android system.
Double3	Class for exposing the native RenderScript double3 type back to the Android system.
Double4	Class for exposing the native RenderScript double4 type back to the Android system.
Double4	Class for exposing the native RenderScript double4 type back to the Android system.
DoubleBuffer	A buffer of doubles.
DownloadListener
DownloadManager	The download manager is a system service that handles long-running HTTP downloads.
DownloadManager.Query	This class may be used to filter download manager queries.
DownloadManager.Request	This class contains all the information necessary to request a new download.
DragEvent	Represents an event that is sent out by the system at various times during a drag and drop operation.
Drawable	A Drawable is a general abstraction for “something that can be drawn.” Most often you will deal with Drawable as the type of resource retrieved for drawing things to the screen; the Drawable class provides a generic API for dealing with an underlying visual resource that may take a variety of forms.
Drawable.Callback	Implement this interface if you want to create an animated drawable that extends Drawable.
Drawable.ConstantState	This abstract class is used by Drawables to store shared constant state and data between Drawables.
DrawableCompat	Helper for accessing features in Drawable introduced after API level 4 in a backwards compatible fashion.
DrawableContainer	A helper class that contains several Drawables and selects which one to use.
DrawableContainer.DrawableContainerState	A ConstantState that can contain several Drawables.
DrawableMarginSpan
DrawerLayout	DrawerLayout acts as a top-level container for window content that allows for interactive “drawer” views to be pulled out from the edge of the window.
DrawerLayout.DrawerListener	Listener for monitoring events about drawers.
DrawerLayout.LayoutParams
DrawerLayout.SavedState	State persisted across instances
DrawerLayout.SimpleDrawerListener	Stub/no-op implementations of all methods of DrawerLayout.DrawerListener.
DrawFilter	A DrawFilter subclass can be installed in a Canvas.
DreamService	Extend this class to implement a custom dream (available to the user as a “Daydream”).
Driver	An interface to a JDBC driver.
Driver	SAX2 Driver that pulls events from XmlPullParser and comverts them into SAX2 callbacks.
DriverManager	Provides facilities for managing JDBC drivers.
DriverPropertyInfo	A class holding information about driver properties of a database connection.
DrmConvertedStatus	An entity class that wraps converted data, conversion status, and the offset for appending the header and body signature to the converted data.
DrmErrorEvent	An entity class that is passed to the onError() callback.
DrmEvent	A base class that is used to send asynchronous event information from the DRM framework.
DrmInfo	An entity class that describes the information required to send transactions between a device and an online DRM server.
DrmInfoEvent	An entity class that is passed to the onInfo() callback.
DrmInfoRequest	An entity class that is used to pass information to an online DRM server.
DrmInfoStatus	An entity class that wraps the result of communication between a device and an online DRM server.
DrmManagerClient	The main programming interface for the DRM framework.
DrmManagerClient.OnErrorListener	Interface definition for a callback that receives information about DRM framework errors.
DrmManagerClient.OnEventListener	Interface definition for a callback that receives information about DRM processing events.
DrmManagerClient.OnInfoListener	Interface definition for a callback that receives status messages and warnings during registration and rights acquisition.
DrmRights	An entity class that wraps the license information retrieved from the online DRM server.
DrmStore	Defines constants that are used by the DRM framework.
DrmStore.Action	Defines actions that can be performed on rights-protected content.
DrmStore.ConstraintsColumns	Interface definition for the columns that represent DRM constraints.
DrmStore.DrmObjectType	Defines DRM object types.
DrmStore.Playback	Defines playback states for content.
DrmStore.RightsStatus	Defines status notifications for digital rights.
DrmSupportInfo	An entity class that wraps the capability of each DRM plug-in (agent), such as the MIME type and file suffix the DRM plug-in can handle.
DrmUtils	A utility class that provides operations for parsing extended metadata embedded in DRM constraint information.
DrmUtils.ExtendedMetadataParser	Utility that parses extended metadata embedded in DRM constraint information.
DropBoxManager	Enqueues chunks of data (from various sources – application crashes, kernel log records, etc.).
DropBoxManager.Entry	A single entry retrieved from the drop box.
DSAKey	The base interface for Digital Signature Algorithm (DSA) public or private keys.
DSAKeyPairGenerator	The interface for key generators that can generate DSA key pairs.
DSAParameterSpec	The parameter specification used with the Digital Signature Algorithm (DSA).
DSAParams	The interface for Digital Signature Algorithm (DSA) specific parameters.
DSAPrivateKey	The interface for a Digital Signature Algorithm (DSA) private key.
DSAPrivateKeySpec	The parameters specifying a DSA private key.
DSAPublicKey	The interface for a Digital Signature Algorithm (DSA) public key.
DSAPublicKeySpec	The parameters specifying a DSA public key.
DTDHandler	Receive notification of basic DTD-related events.
DuplicateFormatFlagsException	The unchecked exception will be thrown out if there are duplicate flags given out in the format specifier.
Duration	Immutable representation of a time span as defined in the W3C XML Schema 1.0 specification.
DynamicDrawableSpan
DynamicLayout	DynamicLayout is a text layout that updates itself as the text is edited.
E
EasyEditSpan	Provides an easy way to edit a portion of text.
ECField	The base interface for a Finite Field of an Elliptic Curve.
ECFieldF2m	The parameters specifying a characteristic 2 finite field of an elliptic curve.
ECFieldFp	The parameters specifying a prime finite field of an elliptic curve.
ECGenParameterSpec	The parameter specification used to generate elliptic curve domain parameters.
ECKey	The base interface for Elliptic Curve (EC) public or private keys.
ECParameterSpec	The parameter specification used with Elliptic Curve Cryptography (ECC).
ECPoint	A Point on an Elliptic Curve in barycentric (or affine) coordinates.
ECPrivateKey	The interface for an Elliptic Curve (EC) private key.
ECPrivateKeySpec	The parameters specifying an Elliptic Curve (EC) private key.
ECPublicKey	The interface for an Elliptic Curve (EC) public key.
ECPublicKeySpec	The parameters specifying an Elliptic Curve (EC) public key.
EdgeEffect	This class performs the graphical effect used at the edges of scrollable widgets when the user scrolls beyond the content bounds in 2D space.
EdgeEffectCompat	Helper for accessing EdgeEffect introduced after API level 4 in a backwards compatible fashion.
Editable	This is the interface for text whose content and markup can be changed (as opposed to immutable text like Strings).
Editable.Factory	Factory used by TextView to create new Editables.
EditorInfo	An EditorInfo describes several attributes of a text editing object that an input method is communicating with (typically an EditText), most importantly the type of text content it contains.
EditText	EditText is a thin veneer over TextView that configures itself to be editable.
EditTextPreference	A Preference that allows for string input.
Effect	Effects are high-performance transformations that can be applied to image frames.
EffectContext	An EffectContext keeps all necessary state information to run Effects within a Open GL ES 2.0 context.
EffectFactory	The EffectFactory class defines the list of available Effects, and provides functionality to inspect and instantiate them.
EffectUpdateListener	Some effects may issue callbacks to inform the host of changes to the effect state.
EGL
EGL10
EGL11
EGL14	EGL 1.4
EGLConfig	Wrapper class for native EGLConfig objects.
EGLConfig
EGLContext	Wrapper class for native EGLContext objects.
EGLContext
EGLDisplay	Wrapper class for native EGLDisplay objects.
EGLDisplay
EGLExt	EGL Extensions
EGLObjectHandle	Base class for wrapped EGL objects.
EGLSurface	Wrapper class for native EGLSurface objects.
EGLSurface
Element	An Element represents one item within an Allocation.
Element	An XML element.
Element	An Element represents one item within an Allocation.
Element	The Element interface represents an element in an HTML or XML document.
Element.Builder	Builder class for producing complex elements with matching field and name pairs.
Element.Builder	Builder class for producing complex elements with matching field and name pairs.
Element.DataKind	The special interpretation of the data if required.
Element.DataKind	The special interpretation of the data if required.
Element.DataType	DataType represents the basic type information for a basic element.
Element.DataType	DataType represents the basic type information for a basic element.
ElementListener	Listens for the beginning and ending of elements.
ElementType	Defines an enumeration for Java program elements.
EllipticCurve	An Elliptic Curve with its necessary values.
EmbossMaskFilter
EmptyStackException	An EmptyStackException is thrown if the pop/peek method of a stack is executed on an empty stack.
EncodedKeySpec	The abstract key specification for a public or a private key in encoded format.
EncodingUtils	The home for utility methods that handle various encoding tasks.
EncryptedPrivateKeyInfo	This class implements the EncryptedPrivateKeyInfo ASN.1 type as specified in PKCS #8 - Private-Key Information Syntax Standard.
EndElementListener	Listens for the end of elements.
EndTextElementListener	Listens for the end of text elements.
EnglishReasonPhraseCatalog	English reason phrases for HTTP status codes.
Entity	A representation of a item using ContentValues.
Entity	This interface represents a known entity, either parsed or unparsed, in an XML document.
Entity.NamedContentValues
EntityDeserializer	Default implementation of an entity deserializer.
EntityEnclosingRequestWrapper	A wrapper class for HttpEntityEnclosingRequests that can be used to change properties of the current request without modifying the original object.
EntityIterator	A specialization of Iterator that allows iterating over a collection of Entity objects.
EntityReference	EntityReference nodes may be used to represent an entity reference in the tree.
EntityResolver	Basic interface for resolving entities.
EntityResolver2	Extended interface for mapping external entity references to input sources, or providing a missing external subset.
EntitySerializer	Default implementation of an entity serializer.
EntityTemplate	Entity that delegates the process of content generation to an abstract content producer.
EntityUtils	Static helpers for dealing with entities.
Enum	The superclass of all enumerated types.
EnumConstantNotPresentException	Thrown if an enum constant does not exist for a particular name.
Enumeration	A legacy iteration interface.
EnumMap	An Map specialized for use with Enum types as keys.
EnumSet	An EnumSet is a specialized Set to be used with enums as keys.
Environment	Provides access to environment variables.
EnvironmentalReverb	A sound generated within a room travels in many directions.
EnvironmentalReverb.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the EnvironmentalReverb when a parameter value has changed.
EnvironmentalReverb.Settings	The Settings class regroups all environmental reverb parameters.
EnvironmentCompat	Helper for accessing features in Environment introduced after API level 4 in a backwards compatible fashion.
EOFException	Thrown when a program encounters the end of a file or stream during an input operation.
EofSensorInputStream	A stream wrapper that triggers actions on close() and EOF.
EofSensorWatcher	A watcher for EofSensorInputStream.
Equalizer	An Equalizer is used to alter the frequency response of a particular music source or of the main output mix.
Equalizer.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the Equalizer when a parameter value has changed.
Equalizer.Settings	The Settings class regroups all equalizer parameters.
Error	Error is the superclass of all classes that represent unrecoverable errors.
ErrorHandler	Basic interface for SAX error handlers.
ErrorListener	To provide customized error handling, implement this interface and use the setErrorListener method to register an instance of the implementation with the Transformer.
ErrorManager	An error reporting facility for Handler implementations to record any error that may happen during logging.
ETC1	Methods for encoding and decoding ETC1 textures.
ETC1Util	Utility methods for using ETC1 compressed textures.
ETC1Util.ETC1Texture	A utility class encapsulating a compressed ETC1 texture.
EventListener	EventListener is the superclass of all event listener interfaces.
EventListenerProxy	This abstract class provides a simple wrapper for objects of type EventListener.
EventLog	Access to the system diagnostic event record.
EventLog.Event	A previously logged event read from the logs.
EventLogTags	This class was deprecated in API level 8. This class is no longer functional. Use EventLog instead.
EventLogTags.Description
EventObject	EventObjects represent events.
Exception	Exception is the superclass of all classes that represent recoverable exceptions.
ExceptionInInitializerError	Thrown when an exception occurs during class initialization.
ExceptionUtils	The home for utility methods that handle various exception-related tasks.
Exchanger	A synchronization point at which threads can pair and swap elements within pairs.
ExecutionContext	Context attribute names for protocol execution.
ExecutionException	Exception thrown when attempting to retrieve the result of a task that aborted by throwing an exception.
Executor	An object that executes submitted Runnable tasks.
ExecutorCompletionService	A CompletionService that uses a supplied Executor to execute tasks.
Executors	Factory and utility methods for Executor, ExecutorService, ScheduledExecutorService, ThreadFactory, and Callable classes defined in this package.
ExecutorService	An Executor that provides methods to manage termination and methods that can produce a Future for tracking progress of one or more asynchronous tasks.
ExemptionMechanism	This class implements the functionality of an exemption mechanism such as key recovery, key weakening, or key escrow.
ExemptionMechanismException	This is the base class for ExemptionMechanismException.
ExemptionMechanismSpi	The Service Provider Interface (SPI) definition for the ExemptionMechanism class.
ExifInterface	This is a class for reading and writing Exif tags in a JPEG file.
ExpandableListActivity	An activity that displays an expandable list of items by binding to a data source implementing the ExpandableListAdapter, and exposes event handlers when the user selects an item.
ExpandableListAdapter	An adapter that links a ExpandableListView with the underlying data.
ExpandableListView	A view that shows items in a vertically scrolling two-level list.
ExpandableListView.ExpandableListContextMenuInfo	Extra menu information specific to an ExpandableListView provided to the onCreateContextMenu(ContextMenu, View, ContextMenuInfo) callback when a context menu is brought up for this AdapterView.
ExpandableListView.OnChildClickListener	Interface definition for a callback to be invoked when a child in this expandable list has been clicked.
ExpandableListView.OnGroupClickListener	Interface definition for a callback to be invoked when a group in this expandable list has been clicked.
ExpandableListView.OnGroupCollapseListener	Used for being notified when a group is collapsed
ExpandableListView.OnGroupExpandListener	Used for being notified when a group is expanded
ExploreByTouchHelper	ExploreByTouchHelper is a utility class for implementing accessibility support in custom Views that represent a collection of View-like logical items.
Externalizable	Defines an interface for classes that want to be serializable, but have their own binary representation.
ExtractEditText	Specialization of EditText for showing and interacting with the extracted text in a full-screen input method.
ExtractedText	Information about text that has been extracted for use by an input method.
ExtractedTextRequest	Description of what an input method would like from an application when extract text from its input editor.
F
FaceDetector	Identifies the faces of people in a Bitmap graphic object.
FaceDetector.Face	A Face contains all the information identifying the location of a face in a bitmap.
FactoryConfigurationError	Thrown when a problem with configuration with the Parser Factories exists.
Fade	This transition tracks changes to the visibility of target views in the start and end scenes and fades views in or out when they become visible or non-visible.
FeatureInfo	A single feature that can be requested by an application.
Field	This class represents a field.
FieldPacker	Utility class for packing arguments and structures from Android system objects to RenderScript objects.
FieldPacker	Utility class for packing arguments and structures from Android system objects to RenderScript objects.
FieldPosition	Identifies fields in formatted strings.
File	An “abstract” representation of a file system entity identified by a pathname.
FileBackupHelper	A helper class that can be used in conjunction with BackupAgentHelper to manage the backup of a set of files.
FileChannel	An abstract channel type for interaction with a platform file.
FileChannel.MapMode	MapMode defines file mapping mode constants.
FileDescriptor	Wraps a Unix file descriptor.
FileEntity	An entity whose content is retrieved from a file.
FileFilter	An interface for filtering File objects based on their names or other information.
FileHandler	A FileHandler writes logging records into a specified file or a rotating set of files.
FileInputStream	An input stream that reads bytes from a file.
FileLock	A FileLock represents a locked region of a file.
FileLockInterruptionException	A FileLockInterruptionException is thrown when a thread is interrupted while waiting to acquire a file lock.
FilenameFilter	An interface for filtering File objects based on their names or the directory they reside in.
FileNameMap	Defines a scheme for mapping a filename type to a MIME content type.
FileNotFoundException	Thrown when a file specified by a program cannot be found.
FileObserver	Monitors files (using inotify) to fire an event after files are accessed or changed by by any process on the device (including this one).
FileOutputStream	An output stream that writes bytes to a file.
FilePermission	Legacy security code; do not use.
FileProvider	FileProvider is a special subclass of ContentProvider that facilitates secure sharing of files associated with an app by creating a content:// Uri for a file instead of a file:/// Uri.
FileReader	A specialized Reader that reads from a file in the file system.
FileWriter	A specialized Writer that writes to a file in the file system.
Filter	A filter constrains data with a filtering pattern.
Filter	A Filter provides a mechanism for exercising fine-grained control over which records get logged.
Filter.FilterListener	Listener used to receive a notification upon completion of a filtering operation.
Filter.FilterResults	Holds the results of a filtering operation.
Filterable	Defines a filterable behavior.
FilterInputStream	Wraps an existing InputStream and performs some transformation on the input data while it is being read.
FilterOutputStream	Wraps an existing OutputStream and performs some transformation on the output data while it is being written.
FilterQueryProvider	This class can be used by external clients of CursorAdapter and CursorTreeAdapter to define how the content of the adapter should be filtered.
FilterReader	Wraps an existing Reader and performs some transformation on the input data while it is being read.
FilterWriter	Wraps an existing Writer and performs some transformation on the output data while it is being written.
FlakyTest	This annotation can be used on an InstrumentationTestCase’s test methods.
Float	The wrapper for the primitive type float.
Float2	Class for exposing the native RenderScript float2 type back to the Android system.
Float2	Class for exposing the native RenderScript float2 type back to the Android system.
Float3	Class for exposing the native RenderScript float2 type back to the Android system.
Float3	Class for exposing the native RenderScript float2 type back to the Android system.
Float4	Class for exposing the native RenderScript float2 type back to the Android system.
Float4	Class for exposing the native RenderScript float2 type back to the Android system.
FloatBuffer	A buffer of floats.
FloatEvaluator	This evaluator can be used to perform type interpolation between float values.
FloatMath	Math routines similar to those found in Math.
Flushable	Defines an interface for classes that can (or need to) be flushed, typically before some output processing is considered to be finished and the object gets closed.
FocusFinder	The algorithm used for finding the next focusable view in a given direction from a view that currently has focus.
ForegroundColorSpan
Format	The base class for all formats.
Format.Field	Inner class used to represent Format attributes in the AttributedCharacterIterator that the formatToCharacterIterator() method returns in Format subclasses.
FormatException
FormatFlagsConversionMismatchException	A FormatFlagsConversionMismatchException will be thrown if a conversion and the flags are incompatible.
Formattable	Classes that handle custom formatting for the ‘s’ specifier of Formatter should implement the Formattable interface.
FormattableFlags	FormattableFlags are used as a parameter to formatTo(Formatter, int, int, int) and change the output format in Formattables.
FormattedHeader	An HTTP header which is already formatted.
Formatter	Utility class to aid in formatting common values that are not covered by the Formatter class in java.util
Formatter	Formats arguments according to a format string (like printf in C).
Formatter	Formatter objects are used to format LogRecord objects into a string representation.
Formatter.BigDecimalLayoutForm	The enumeration giving the available styles for formatting very large decimal numbers.
FormatterClosedException	A FormatterClosedException will be thrown if the formatter has been closed.
Fragment	A Fragment is a piece of an application’s user interface or behavior that can be placed in an Activity.
Fragment	Static library support version of the framework’s Fragment.
Fragment.InstantiationException	Thrown by instantiate(Context, String, Bundle) when there is an instantiation failure.
Fragment.InstantiationException	Thrown by instantiate(Context, String, Bundle) when there is an instantiation failure.
Fragment.SavedState	State information that has been retrieved from a fragment instance through FragmentManager.saveFragmentInstanceState.
Fragment.SavedState	State information that has been retrieved from a fragment instance through FragmentManager.saveFragmentInstanceState.
FragmentActivity	Base class for activities that want to use the support-based Fragment and Loader APIs.
FragmentBreadCrumbs	Helper class for showing “bread crumbs” representing the fragment stack in an activity.
FragmentBreadCrumbs.OnBreadCrumbClickListener	Interface to intercept clicks on the bread crumbs.
FragmentCompat	Helper for accessing features in Fragment introduced after API level 13 in a backwards compatible fashion.
FragmentManager	Interface for interacting with Fragment objects inside of an Activity
	Developer Guides
	For more information about using fragments, read the Fragments developer guide.
FragmentManager	Static library support version of the framework’s FragmentManager.
FragmentManager.BackStackEntry	Representation of an entry on the fragment back stack, as created with FragmentTransaction.addToBackStack().
FragmentManager.BackStackEntry	Representation of an entry on the fragment back stack, as created with FragmentTransaction.addToBackStack().
FragmentManager.OnBackStackChangedListener	Interface to watch for changes to the back stack.
FragmentManager.OnBackStackChangedListener	Interface to watch for changes to the back stack.
FragmentPagerAdapter	Implementation of PagerAdapter that represents each page as a Fragment that is persistently kept in the fragment manager as long as the user can return to the page.
FragmentPagerAdapter	Implementation of PagerAdapter that represents each page as a Fragment that is persistently kept in the fragment manager as long as the user can return to the page.
FragmentStatePagerAdapter	Implementation of PagerAdapter that uses a Fragment to manage each page.
FragmentStatePagerAdapter	Implementation of PagerAdapter that uses a Fragment to manage each page.
FragmentTabHost	Version of FragmentTabHost that can be used with the platform Fragment APIs.
FragmentTabHost	Special TabHost that allows the use of Fragment objects for its tab content.
FragmentTransaction	API for performing a set of Fragment operations.
FragmentTransaction	Static library support version of the framework’s FragmentTransaction.
FrameLayout	FrameLayout is designed to block out an area on the screen to display a single item.
FrameLayout.LayoutParams	Per-child layout information for layouts that support margins.
FullBackupDataOutput	Provides the interface through which a BackupAgent writes entire files to a full backup data set, via its onFullBackup(FullBackupDataOutput) method.
Future	A Future represents the result of an asynchronous computation.
FutureTask	A cancellable asynchronous computation.
G
Gallery	This class was deprecated in API level 16. This widget is no longer supported. Other horizontally scrolling widgets include HorizontalScrollView and ViewPager from the support library.
Gallery.LayoutParams	Gallery extends LayoutParams to provide a place to hold current Transformation information along with previous position/transformation info.
GatheringByteChannel	The interface for channels that can write a set of buffers in a single operation.
GCMParameterSpec	Provides a the parameters for an instance of a Cipher using Galois/Counter Mode (GCM).
GeneralSecurityException	GeneralSecurityException is a general security exception and the superclass for all security specific exceptions.
GenericArrayType	This interface represents an array type with a component type that is either a parameterized type or a type variable.
GenericDeclaration	Common interface for language constructs that declare type parameters.
GenericSignatureFormatError	Indicates that a malformed signature has been encountered via a reflective method.
Geocoder	A class for handling geocoding and reverse geocoding.
GeofenceHardware	This class handles geofences managed by various hardware subsystems.
GeofenceHardwareCallback	The callback class associated with the APIs in GeofenceHardware
GeofenceHardwareMonitorCallback	The callback class associated with the status change of hardware montiors in GeofenceHardware
GeofenceHardwareRequest	This class represents the characteristics of the geofence.
GeolocationPermissions	This class is used to manage permissions for the WebView’s Geolocation JavaScript API.
GeolocationPermissions.Callback	A callback interface used by the host application to set the Geolocation permission state for an origin.
GeomagneticField	Estimates magnetic field at a given point on Earth, and in particular, to compute the magnetic declination from true north.
Gesture	A gesture is a hand-drawn shape on a touch screen.
GestureDetector	Detects various gestures and events using the supplied MotionEvents.
GestureDetector.OnDoubleTapListener	The listener that is used to notify when a double-tap or a confirmed single-tap occur.
GestureDetector.OnGestureListener	The listener that is used to notify when gestures occur.
GestureDetector.SimpleOnGestureListener	A convenience class to extend when you only want to listen for a subset of all the gestures.
GestureDetectorCompat	Detects various gestures and events using the supplied MotionEvents.
GestureLibraries
GestureLibrary
GestureOverlayView	A transparent overlay for gesture input that can be placed on top of other widgets or contain other widgets.
GestureOverlayView.OnGestureListener
GestureOverlayView.OnGesturePerformedListener
GestureOverlayView.OnGesturingListener
GesturePoint	A timed point of a gesture stroke.
GestureStore	GestureLibrary maintains gesture examples and makes predictions on a new gesture
GestureStroke	A gesture stroke started on a touch down and ended on a touch up.
GestureUtils	Utility functions for gesture processing & analysis, including methods for:
	feature extraction (e.g., samplers and those for calculating bounding boxes and gesture path lengths);
	geometric transformation (e.g., translation, rotation and scaling);
	gesture similarity comparison (e.g., calculating Euclidean or Cosine distances between two gestures).
GetChars	Please implement this interface if your CharSequence has a getChars() method like the one in String that is faster than calling charAt() multiple times.
GL
GL10
GL10Ext
GL11
GL11Ext
GL11ExtensionPack
GLDebugHelper	A helper class for debugging OpenGL ES applications.
GLES10
GLES10Ext
GLES11
GLES11Ext
GLES20	OpenGL ES 2.0
GLES30	OpenGL ES 3.0
GLException	An exception class for OpenGL errors.
GLSurfaceView	An implementation of SurfaceView that uses the dedicated surface for displaying OpenGL rendering.
GLSurfaceView.EGLConfigChooser	An interface for choosing an EGLConfig configuration from a list of potential configurations.
GLSurfaceView.EGLContextFactory	An interface for customizing the eglCreateContext and eglDestroyContext calls.
GLSurfaceView.EGLWindowSurfaceFactory	An interface for customizing the eglCreateWindowSurface and eglDestroySurface calls.
GLSurfaceView.GLWrapper	An interface used to wrap a GL interface.
GLSurfaceView.Renderer	A generic renderer interface.
GLU	A set of GL utilities inspired by the OpenGL Utility Toolkit.
GLUtils	Utility class to help bridging OpenGL ES and Android APIs.
GpsSatellite	This class represents the current state of a GPS satellite.
GpsStatus	This class represents the current state of the GPS engine.
GpsStatus.Listener	Used for receiving notifications when GPS status has changed.
GpsStatus.NmeaListener	Used for receiving NMEA sentences from the GPS.
GradientDrawable	A Drawable with a color gradient for buttons, backgrounds, etc.
GradientDrawable.Orientation	Controls how the gradient is oriented relative to the drawable’s bounds
Gravity	Standard constants and tools for placing an object within a potentially larger container.
GravityCompat	Compatibility shim for accessing newer functionality from Gravity.
GregorianCalendar	GregorianCalendar is a concrete subclass of Calendar and provides the standard calendar used by most of the world.
GridLayout	A layout that places its children in a rectangular grid.
GridLayout	A layout that places its children in a rectangular grid.
GridLayout.Alignment	Alignments specify where a view should be placed within a cell group and what size it should be.
GridLayout.Alignment	Alignments specify where a view should be placed within a cell group and what size it should be.
GridLayout.LayoutParams	Layout information associated with each of the children of a GridLayout.
GridLayout.LayoutParams	Layout information associated with each of the children of a GridLayout.
GridLayout.Spec	A Spec defines the horizontal or vertical characteristics of a group of cells.
GridLayout.Spec	A Spec defines the horizontal or vertical characteristics of a group of cells.
GridLayoutAnimationController	A layout animation controller is used to animated a grid layout’s children.
GridLayoutAnimationController.AnimationParameters	The set of parameters that has to be attached to each view contained in the view group animated by the grid layout animation controller.
GridView	A view that shows items in two-dimensional scrolling grid.
Group	A Principal that represents a group of principals.
GsmCellLocation	Represents the cell location on a GSM phone.
Guard	Guard implementors protect access to other objects.
GuardedObject	GuardedObject controls access to an object, by checking all requests for the object with a Guard.
GZIPInputStream	The GZIPInputStream class is used to read data stored in the GZIP format, reading and decompressing GZIP data from the underlying stream into its buffer.
GZIPOutputStream	The GZIPOutputStream class is used to write data to a stream in the GZIP storage format.
H
Handler	A Handler allows you to send and process Message and Runnable objects associated with a thread’s MessageQueue.
Handler	A Handler object accepts a logging request and exports the desired messages to a target, for example, a file, the console, etc.
Handler.Callback	Callback interface you can use when instantiating a Handler to avoid having to implement your own subclass of Handler.
HandlerBase	This class was deprecated in API level 1. This class works with the deprecated DocumentHandler interface. It has been replaced by the SAX2 DefaultHandler class.
HandlerThread	Handy class for starting a new thread that has a looper.
HandshakeCompletedEvent	The event object encapsulating the information about a completed SSL handshake on a SSL connection.
HandshakeCompletedListener	The listener to be implemented to receive event notifications on completion of SSL handshake on an SSL connection.
HapticFeedbackConstants	Constants to be used to perform haptic feedback effects via performHapticFeedback(int)
HashMap	HashMap is an implementation of Map.
HashSet	HashSet is an implementation of a Set.
Hashtable	Hashtable is a synchronized implementation of Map.
Header	Represents an HTTP header field.
HeaderElement	One element of an HTTP header value.
HeaderElementIterator	A type-safe iterator for HeaderElement objects.
HeaderGroup	A class for combining a set of headers.
HeaderIterator	A type-safe iterator for Header objects.
HeaderValueFormatter	Interface for formatting elements of a header value.
HeaderValueParser	Interface for parsing header values into elements.
HeaderViewListAdapter	ListAdapter used when a ListView has header views.
HeterogeneousExpandableList	Additional methods that when implemented make an ExpandableListAdapter take advantage of the Adapter view type mechanism.
HideReturnsTransformationMethod	This transformation method causes any carriage return characters (\r) to be hidden by displaying them as zero-width non-breaking space characters ().
HorizontalScrollView	Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display.
HostApduService	HostApduService is a convenience Service class that can be extended to emulate an NFC card inside an Android service component.
HostNameResolver
HostnameVerifier	The interface to be used to provide hostname verification functionality.
Html	This class processes HTML strings into displayable styled text.
Html.ImageGetter	Retrieves images for HTML tags.
Html.TagHandler	Is notified when HTML tags are encountered that the parser does not know how to interpret.
HTTP	Constants and static helpers related to the HTTP protocol.
HttpAbstractParamBean
HttpAuthHandler	Represents a request for HTTP authentication.
HttpClient	Interface for an HTTP client.
HttpClientConnection	An HTTP connection for use on the client side.
HttpClientParams	An adaptor for accessing HTTP client parameters in HttpParams.
HttpConnection	A generic HTTP connection, useful on client and server side.
HttpConnectionMetrics	The point of access to the statistics of an HttpConnection.
HttpConnectionMetricsImpl	Implementation of the metrics interface.
HttpConnectionParamBean
HttpConnectionParams	An adaptor for accessing connection parameters in HttpParams.
HttpContext	A context for executing a request.
HttpCookie	An opaque key-value value pair held by an HTTP client to permit a stateful session with an HTTP server.
HttpDateGenerator	Generates a date in the format required by the HTTP protocol.
HttpDelete	HTTP DELETE method
	The HTTP DELETE method is defined in section 9.7 of RFC2616:
	The DELETE method requests that the origin server delete the resource identified by the Request-URI.
HttpEntity	An entity that can be sent or received with an HTTP message.
HttpEntityEnclosingRequest	A request with an entity.
HttpEntityEnclosingRequestBase	Basic implementation of an HTTP request that can be modified.
HttpEntityWrapper	Base class for wrapping entities.
HttpException	Signals that an HTTP exception has occurred.
HttpExpectationVerifier	Defines an interface to verify whether an incoming HTTP request meets the target server’s expectations.
HttpGet	HTTP GET method.
HttpHead	HTTP HEAD method.
HttpHost	Holds all of the variables needed to describe an HTTP connection to a host.
HttpHostConnectException	A ConnectException that specifies the HttpHost that was being connected to.
HttpInetConnection	An HTTP connection over the Internet Protocol (IP).
HttpMessage	A generic HTTP message.
HttpMessageParser	Generic message parser interface.
HttpMessageWriter	Generic message writer interface.
HttpOptions	HTTP OPTIONS method.
HttpParams	Represents a collection of HTTP protocol and framework parameters.
HttpPost	HTTP POST method.
HttpProcessor	Performs interceptor processing of requests and responses.
HttpProtocolParamBean
HttpProtocolParams	This class implements an adaptor around the HttpParams interface to simplify manipulation of the HTTP protocol specific parameters.
HttpPut	HTTP PUT method.
HttpRequest	An HTTP request.
HttpRequestBase	Basic implementation of an HTTP request that can be modified.
HttpRequestExecutor	Sends HTTP requests and receives the responses.
HttpRequestFactory	A factory for HttpRequest objects.
HttpRequestHandler
HttpRequestHandlerRegistry	Maintains a map of HTTP request handlers keyed by a request URI pattern.
HttpRequestHandlerResolver	Interface to be implemented by objects that can resolve HttpRequestHandler instances by request URI.
HttpRequestInterceptor	Processes a request.
HttpRequestInterceptorList	Provides access to an ordered list of request interceptors.
HttpRequestParser
HttpRequestRetryHandler	A handler for determining if an HttpRequest should be retried after a recoverable exception during execution.
HttpRequestWriter
HttpResponse	An HTTP response.
HttpResponseCache	Caches HTTP and HTTPS responses to the filesystem so they may be reused, saving time and bandwidth.
HttpResponseException	Signals a non 2xx HTTP response.
HttpResponseFactory	A factory for HttpResponse objects.
HttpResponseInterceptor	Processes a response.
HttpResponseInterceptorList	Provides access to an ordered list of response interceptors.
HttpResponseParser
HttpResponseWriter
HttpRetryException	If a HTTP request has to be retried, this exception will be thrown if the request cannot be retried automatically.
HttpRoute	The route for a request.
HttpRouteDirector	Provides directions on establishing a route.
HttpRoutePlanner	Encapsulates logic to compute a HttpRoute to a target host.
HttpServerConnection	An HTTP connection for use on the server side.
HttpService	Minimalistic server-side implementation of an HTTP processor.
HttpStatus	Constants enumerating the HTTP status codes.
HttpsURLConnection	An HttpURLConnection for HTTPS (RFC 2818).
HttpTrace	HTTP TRACE method.
HttpTransportMetrics
HttpTransportMetricsImpl	Default implementation of HttpTransportMetrics.
HttpUriRequest	Extended version of the HttpRequest interface that provides convenience methods to access request properties such as request URI and method type.
HttpURLConnection	An URLConnection for HTTP (RFC 2616) used to send and receive data over the web.
HttpVersion	Represents an HTTP version, as specified in RFC 2616.
I
IBinder	Base interface for a remotable object, the core part of a lightweight remote procedure call mechanism designed for high performance when performing in-process and cross-process calls.
IBinder.DeathRecipient	Interface for receiving a callback when the process hosting an IBinder has gone away.
IconMarginSpan
ICUCompat
Identity	This class was deprecated in API level 1. Use Principal, KeyStore and the java.security.cert package instead.
IdentityHashMap	IdentityHashMap is a variant on HashMap which tests equality by reference instead of equality by value.
IdentityInputStream	A stream for reading from a session input buffer.
IdentityOutputStream	A stream for writing with an “identity” transport encoding.
IdentityScope	This class was deprecated in API level 1. Use Principal, KeyStore and the java.security.cert package instead.
IdleConnectionHandler	A helper class for connection managers to track idle connections.
IDN	Converts internationalized domain names between Unicode and the ASCII Compatible Encoding (ACE) representation.
IInterface	Base class for Binder interfaces.
IllegalAccessError	Thrown when the VM notices that a program tries access a field which is not accessible from where it is referenced.
IllegalAccessException	Thrown when a program attempts to access a field or method which is not accessible from the location where the reference is made.
IllegalArgumentException	Thrown when a method is invoked with an argument which it can not reasonably deal with.
IllegalBlockingModeException	An IllegalBlockingModeException is thrown when an operation that requires a specific blocking mode is invoked on a channel that is in a different blocking mode.
IllegalBlockSizeException	The exception, that is thrown when the data length provided to a block cipher does not match the block size of the cipher.
IllegalCharsetNameException	An IllegalCharsetNameException is thrown when an illegal charset name is encountered.
IllegalFormatCodePointException	An IllegalFormatCodePointException will be thrown if an invalid Unicode code point (defined by isValidCodePoint(int)) is passed as a parameter to a Formatter.
IllegalFormatConversionException	An IllegalFormatConversionException will be thrown when the parameter is incompatible with the corresponding format specifier.
IllegalFormatException	An IllegalFormatException is thrown when a format string that contains either an illegal syntax or format specifier is transferred as a parameter.
IllegalFormatFlagsException	An IllegalFormatFlagsException will be thrown if the combination of the format flags is illegal.
IllegalFormatPrecisionException	An IllegalFormatPrecisionException will be thrown if the precision is a negative other than -1 or in other cases where precision is not supported.
IllegalFormatWidthException	An IllegalFormatWidthException will be thrown if the width is a negative value other than -1 or in other cases where a width is not supported.
IllegalMonitorStateException	Thrown when a monitor operation is attempted when the monitor is not in the correct state, for example when a thread attempts to exit a monitor which it does not own.
IllegalSelectorException	An IllegalSelectorException is thrown when a call is made to register a channel on a selector that has been created by a different provider.
IllegalStateException	Thrown when an action is attempted at a time when the VM is not in the correct state.
IllegalThreadStateException	Thrown when an operation is attempted which is not possible given the state that the executing thread is in.
Image	A single complete image buffer to use with a media source such as a MediaCodec.
Image.Plane	A single color plane of image data.
ImageButton	Displays a button with an image (instead of text) that can be pressed or clicked by the user.
ImageFormat
ImageReader	The ImageReader class allows direct application access to image data rendered into a Surface
	Several Android media API classes accept Surface objects as targets to render to, including MediaPlayer, MediaCodec, and RenderScript Allocations.
ImageReader.OnImageAvailableListener	Callback interface for being notified that a new image is available.
ImageSpan
ImageSwitcher
ImageView	Displays an arbitrary image, such as an icon.
ImageView.ScaleType	Options for scaling the bounds of an image to the bounds of this view.
IncompatibleClassChangeError	IncompatibleClassChangeError is the superclass of all classes which represent errors that occur when inconsistent class files are loaded into the same running image.
IncompleteAnnotationException	Indicates that an element of an annotation type was accessed that was added after the type was compiled or serialized.
IndexedPropertyChangeEvent	A type of PropertyChangeEvent that indicates that an indexed property has changed.
IndexOutOfBoundsException	Thrown when a program attempts to access a value in an indexable collection using a value which is outside of the range of valid indices.
Inet4Address	An IPv4 address.
Inet6Address	An IPv6 address.
InetAddress	An Internet Protocol (IP) address.
InetAddressUtils	A collection of utilities relating to InetAddresses.
InetSocketAddress	This class represents a socket endpoint described by a IP address and a port number.
InflateException	This exception is thrown by an inflater on error conditions.
Inflater	This class decompresses data that was compressed using the DEFLATE algorithm (see specification).
InflaterInputStream	This class provides an implementation of FilterInputStream that decompresses data that was compressed using the DEFLATE algorithm (see specification).
InflaterOutputStream	An OutputStream filter to decompress data.
InheritableThreadLocal	A thread-local variable whose value is passed from parent to child thread.
Inherited	Defines a meta-annotation for indicating that an annotation is automatically inherited.
InputBinding	Information given to an InputMethod about a client connecting to it.
InputConnection	The InputConnection interface is the communication channel from an InputMethod back to the application that is receiving its input.
InputConnectionWrapper	Wrapper class for proxying calls to another InputConnection.
InputDevice	Describes the capabilities of a particular input device.
InputDevice.MotionRange	Provides information about the range of values for a particular MotionEvent axis.
InputEvent	Common base class for input events.
InputFilter	InputFilters can be attached to Editables to constrain the changes that can be made to them.
InputFilter.AllCaps	This filter will capitalize all the lower case letters that are added through edits.
InputFilter.LengthFilter	This filter will constrain edits not to make the length of the text greater than the specified length.
InputManager	Provides information about input devices and available key layouts.
InputManager.InputDeviceListener	Listens for changes in input devices.
InputMethod	The InputMethod interface represents an input method which can generate key events and text, such as digital, email addresses, CJK characters, other language characters, and etc., while handling various input events, and send the text back to the application that requests text input.
InputMethod.SessionCallback
InputMethodInfo	This class is used to specify meta information of an input method.
InputMethodManager	Central system API to the overall input method framework (IMF) architecture, which arbitrates interaction between applications and the current input method.
InputMethodService	InputMethodService provides a standard implementation of an InputMethod, which final implementations can derive from and customize.
InputMethodService.InputMethodImpl	Concrete implementation of AbstractInputMethodService.AbstractInputMethodImpl that provides all of the standard behavior for an input method.
InputMethodService.InputMethodSessionImpl	Concrete implementation of AbstractInputMethodService.AbstractInputMethodSessionImpl that provides all of the standard behavior for an input method session.
InputMethodService.Insets	Information about where interesting parts of the input method UI appear.
InputMethodSession	The InputMethodSession interface provides the per-client functionality of InputMethod that is safe to expose to applications.
InputMethodSession.EventCallback
InputMethodSubtype	This class is used to specify meta information of a subtype contained in an input method editor (IME).
InputMethodSubtype.InputMethodSubtypeBuilder	InputMethodSubtypeBuilder is a builder class of InputMethodSubtype.
InputMismatchException	An InputMismatchException is thrown by a scanner to indicate that the next token does not match or is out of range for the type specified in the pattern.
InputQueue	An input queue provides a mechanism for an application to receive incoming input events.
InputQueue.Callback	Interface to receive notification of when an InputQueue is associated and dissociated with a thread.
InputSource	A single input source for an XML entity.
InputStream	A readable source of bytes.
InputStreamEntity	A streamed entity obtaining content from an InputStream.
InputStreamReader	A class for turning a byte stream into a character stream.
InputType	Bit definitions for an integer defining the basic content type of text held in an Editable object.
InsetDrawable	A Drawable that insets another Drawable by a specified distance.
InstantiationError	Thrown when the VM notices that a program tries to create a new instance of a class which has no visible constructors from the location where new is invoked.
InstantiationException	Thrown when a program attempts to access a constructor which is not accessible from the location where the reference is made.
Instrumentation	Base class for implementing application instrumentation code.
Instrumentation.ActivityMonitor	Information about a particular kind of Intent that is being monitored.
Instrumentation.ActivityResult	Description of a Activity execution result to return to the original activity.
InstrumentationInfo	Information you can retrieve about a particular piece of test instrumentation.
InstrumentationTestCase	A test case that has access to Instrumentation.
InstrumentationTestRunner	An Instrumentation that runs various types of TestCases against an Android package (application).
InstrumentationTestSuite	A TestSuite that injects Instrumentation into InstrumentationTestCase before running them.
Int2	Class for exposing the native RenderScript int2 type back to the Android system.
Int2	Class for exposing the native RenderScript int2 type back to the Android system.
Int3	Class for exposing the native RenderScript int3 type back to the Android system.
Int3	Class for exposing the native RenderScript int3 type back to the Android system.
Int4	Class for exposing the native RenderScript int4 type back to the Android system.
Int4	Class for exposing the native RenderScript int4 type back to the Android system.
IntBuffer	A buffer of ints.
Integer	The wrapper for the primitive type int.
Intent	An intent is an abstract description of an operation to be performed.
Intent.FilterComparison	Wrapper class holding an Intent and implementing comparisons on it for the purpose of filtering.
Intent.ShortcutIconResource	Represents a shortcut/live folder icon resource.
IntentCompat	Helper for accessing features in Intent introduced after API level 4 in a backwards compatible fashion.
IntentFilter	Structured description of Intent values to be matched.
IntentFilter.AuthorityEntry	This is an entry for a single authority in the Iterator returned by authoritiesIterator().
IntentFilter.MalformedMimeTypeException	This exception is thrown when a given MIME type does not have a valid syntax.
IntentSender	A description of an Intent and target action to perform with it.
IntentSender.OnFinished	Callback interface for discovering when a send operation has completed.
IntentSender.SendIntentException	Exception thrown when trying to send through a PendingIntent that has been canceled or is otherwise no longer able to execute the request.
IntentService	IntentService is a base class for Services that handle asynchronous requests (expressed as Intents) on demand.
InterfaceAddress	Identifies one of a network interface’s addresses.
InternalError	Thrown when the VM notices that it has gotten into an undefined state.
Interpolator
Interpolator	An interpolator defines the rate of change of an animation.
Interpolator.Result
InterruptedException	Thrown when a waiting thread is activated before the condition it was waiting for has been satisfied.
InterruptedIOException	Signals that a blocking I/O operation has been interrupted.
InterruptibleChannel	Channels that implement this interface can be asynchronously closed and interrupted.
IntEvaluator	This evaluator can be used to perform type interpolation between int values.
InvalidAlgorithmParameterException	InvalidAlgorithmParameterException indicates the occurrence of invalid algorithm parameters.
InvalidClassException	Signals a problem during the serialization or or deserialization of an object.
InvalidCredentialsException	Authentication credentials required to respond to a authentication challenge are invalid
InvalidKeyException	InvalidKeyException indicates exceptional conditions, caused by an invalid key.
InvalidKeySpecException	The exception that is thrown when an invalid key specification is encountered.
InvalidMarkException	An InvalidMarkException is thrown when reset() is called on a buffer, but no mark has been set previously.
InvalidObjectException	Signals that, during deserialization, the validation of an object has failed.
InvalidParameterException	InvalidParameterException indicates exceptional conditions, caused by invalid parameters.
InvalidParameterSpecException	The exception that is thrown when an invalid parameter specification is encountered.
InvalidPreferencesFormatException	An exception to indicate that the input XML file is not well-formed or could not be validated against the appropriate document type (specified by in the Preferences).
InvalidPropertiesFormatException	An InvalidPropertiesFormatException is thrown if loading the XML document defining the properties does not follow the Properties specification.
InvocationHandler	Implementors of this interface dispatch methods invoked on proxy instances.
InvocationTargetException	This class provides a wrapper for an exception thrown by a Method or Constructor invocation.
IOError	This error is thrown when a severe I/O error has happened.
IOException	Signals a general, I/O-related error.
IsoDep	Provides access to ISO-DEP (ISO 14443-4) properties and I/O operations on a Tag.
IsolatedContext	A mock context which prevents its users from talking to the rest of the device while stubbing enough methods to satify code that tries to talk to other packages.
Iterable	Instances of classes that implement this interface can be used with the enhanced for loop.
Iterator	An iterator over a sequence of objects, such as a collection.
IvParameterSpec	The algorithm parameter specification for an initialization vector.
J
JarEntry	Represents a single file in a JAR archive together with the manifest attributes and digital signatures associated with it.
JarException	This runtime exception is thrown when a problem occurs while reading a JAR file.
JarFile	JarFile is used to read jar entries and their associated data from jar files.
JarInputStream	The input stream from which the JAR file to be read may be fetched.
JarOutputStream	The JarOutputStream is used to write data in the JarFile format to an arbitrary output stream
JarURLConnection	This class establishes a connection to a jar: URL using the JAR protocol.
JavascriptInterface	Annotation that allows exposing methods to JavaScript.
JetPlayer	JetPlayer provides access to JET content playback and control.
JetPlayer.OnJetEventListener	Handles the notification when the JET engine generates an event.
JSONArray	A dense indexed sequence of values.
JSONException	Thrown to indicate a problem with the JSON API.
JSONObject	A modifiable set of name/value mappings.
JsonReader	Reads a JSON (RFC 4627) encoded value as a stream of tokens.
JSONStringer	Implements toString() and toString().
JsonToken	A structure, name or value type in a JSON-encoded string.
JSONTokener	Parses a JSON (RFC 4627) encoded string into the corresponding object.
JsonWriter	Writes a JSON (RFC 4627) encoded value to a stream, one token at a time.
JsPromptResult	Public class for handling JavaScript prompt requests.
JsResult	An instance of this class is passed as a parameter in various WebChromeClient action notifications.
K
Key	Key is the common interface for all keys.
KeyAgreement	This class provides the functionality for a key exchange protocol.
KeyAgreementSpi	The Service Provider Interface (SPI) definition for the KeyAgreement class.
Keyboard	Loads an XML description of a keyboard and stores the attributes of the keys.
Keyboard.Key	Class for describing the position and characteristics of a single key in the keyboard.
Keyboard.Row	Container for keys in the keyboard.
KeyboardView	A view that renders a virtual Keyboard.
KeyboardView.OnKeyboardActionListener	Listener for virtual keyboard events.
KeyChain	The KeyChain class provides access to private keys and their corresponding certificate chains in credential storage.
KeyChainAliasCallback	The KeyChainAliasCallback is the callback for choosePrivateKeyAlias(Activity, KeyChainAliasCallback, String[], Principal[], String, int, String).
KeyChainException	Thrown on problems accessing the KeyChain.
KeyCharacterMap	Describes the keys provided by a keyboard device and their associated labels.
KeyCharacterMap.KeyData	This class was deprecated in API level 11. instead use getDisplayLabel(int), getNumber(int) and get(int, int).
KeyCharacterMap.UnavailableException	Thrown by load(int) when a key character map could not be loaded.
KeyEvent	Object used to report key and button events.
KeyEvent.Callback
KeyEvent.DispatcherState	Use with dispatch(Callback, DispatcherState, Object) for more advanced key dispatching, such as long presses.
KeyEventCompat	Helper for accessing features in KeyEvent introduced after API level 4 in a backwards compatible fashion.
KeyException	KeyException is the common superclass of all key related exceptions.
KeyFactory	KeyFactory is an engine class that can be used to translate between public and private key objects and convert keys between their external representation, that can be easily transported and their internal representation.
KeyFactorySpi	KeyFactorySpi is the Service Provider Interface (SPI) definition for KeyFactory.
Keyframe	This class holds a time/value pair for an animation.
KeyGenerator	This class provides the public API for generating symmetric cryptographic keys.
KeyGeneratorSpi	The Service Provider Interface (SPI) definition for the KeyGenerator class.
KeyguardManager	Class that can be used to lock and unlock the keyboard.
KeyguardManager.KeyguardLock	This class was deprecated in API level 13. Use FLAG_DISMISS_KEYGUARD and/or FLAG_SHOW_WHEN_LOCKED instead; this allows you to seamlessly hide the keyguard as your application moves in and out of the foreground and does not require that any special permissions be requested. Handle returned by newKeyguardLock(String) that allows you to disable / reenable the keyguard.
KeyguardManager.OnKeyguardExitResult	Callback passed to exitKeyguardSecurely(KeyguardManager.OnKeyguardExitResult) to notify caller of result.
KeyListener	Interface for converting text key events into edit operations on an Editable class.
KeyManagementException	KeyManagementException is a general exception, thrown to indicate an exception during processing an operation concerning key management.
KeyManager	This is the interface to implement in order to mark a class as a JSSE key managers so that key managers can be easily grouped.
KeyManagerFactory	The public API for KeyManagerFactory implementations.
KeyManagerFactorySpi	The Service Provider Interface (SPI) for the KeyManagerFactory class.
KeyPair	KeyPair is a container for a public key and a private key.
KeyPairGenerator	KeyPairGenerator is an engine class which is capable of generating a private key and its related public key utilizing the algorithm it was initialized with.
KeyPairGeneratorSpec	This provides the required parameters needed for initializing the KeyPairGenerator that works with Android KeyStore facility.
KeyPairGeneratorSpec.Builder	Builder class for KeyPairGeneratorSpec objects.
KeyPairGeneratorSpi	KeyPairGeneratorSpi is the Service Provider Interface (SPI) definition for KeyPairGenerator.
KeyRep	KeyRep is a standardized representation for serialized Key objects.
KeyRep.Type	Type enumerates the supported key types.
KeySpec	The marker interface for key specifications.
KeyStore	KeyStore is responsible for maintaining cryptographic keys and their owners.
KeyStore.Builder	Builder is used to construct new instances of KeyStore.
KeyStore.CallbackHandlerProtection	CallbackHandlerProtection is a ProtectionParameter that encapsulates a CallbackHandler.
KeyStore.Entry	Entry is the common marker interface for a KeyStore entry.
KeyStore.LoadStoreParameter	LoadStoreParameter represents a parameter that specifies how a KeyStore can be loaded and stored.
KeyStore.PasswordProtection	PasswordProtection is a ProtectionParameter that protects a KeyStore using a password.
KeyStore.PrivateKeyEntry	PrivateKeyEntry represents a KeyStore entry that holds a private key.
KeyStore.ProtectionParameter	ProtectionParameter is a marker interface for protection parameters.
KeyStore.SecretKeyEntry	SecretKeyEntry represents a KeyStore entry that holds a secret key.
KeyStore.TrustedCertificateEntry	TrustedCertificateEntry represents a KeyStore entry that holds a trusted certificate.
KeyStoreBuilderParameters	The parameters for KeyManagers.
KeyStoreException	KeyStoreException is a general KeyStore exception.
KeyStoreParameter	This provides the optional parameters that can be specified for KeyStore entries that work with Android KeyStore facility.
KeyStoreParameter.Builder	Builder class for KeyStoreParameter objects.
KeyStoreSpi	KeyStoreSpi is the Service Provider Interface (SPI) definition for KeyStore.
L
LabeledIntent	A special subclass of Intent that can have a custom label/icon associated with it.
LangUtils	A set of utility methods to help produce consistent equals and hashCode methods.
LargeTest	Marks a test that should run as part of the large tests.
LastOwnerException	The exception that is thrown when an attempt is made to remove the the last Owner from an Owner.
LauncherActivity	Displays a list of all activities which can be performed for a given intent.
LauncherActivity.IconResizer	Utility class to resize icons to match default icon size.
LauncherActivity.ListItem	An item in the list
LaxContentLengthStrategy	The lax implementation of the content length strategy.
LayerDrawable	A Drawable that manages an array of other Drawables.
LayeredSocketFactory	A SocketFactory for layered sockets (SSL/TLS).
LayerRasterizer
Layout	A base class that manages text layout in visual elements on the screen.
Layout.Alignment
Layout.Directions	Stores information about bidirectional (left-to-right or right-to-left) text within the layout of a line.
LayoutAnimationController	A layout animation controller is used to animated a layout’s, or a view group’s, children.
LayoutAnimationController.AnimationParameters	The set of parameters that has to be attached to each view contained in the view group animated by the layout animation controller.
LayoutDirection	A class for defining layout directions.
LayoutInflater	Instantiates a layout XML file into its corresponding View objects.
LayoutInflater.Factory
LayoutInflater.Factory2
LayoutInflater.Filter	Hook to allow clients of the LayoutInflater to restrict the set of Views that are allowed to be inflated.
LayoutTransition	This class enables automatic animations on layout changes in ViewGroup objects.
LayoutTransition.TransitionListener	This interface is used for listening to starting and ending events for transitions.
LDAPCertStoreParameters	The parameters to initialize a LDAP CertStore instance.
LeadingMarginSpan	A paragraph style affecting the leading margin.
LeadingMarginSpan.LeadingMarginSpan2	An extended version of LeadingMarginSpan, which allows the implementor to specify the number of lines of text to which this object is attached that the “first line of paragraph” margin width will be applied to.
LeadingMarginSpan.Standard	The standard implementation of LeadingMarginSpan, which adjusts the margin but does not do any rendering.
Level	Level objects are used to indicate the level of logging.
LevelListDrawable	A resource that manages a number of alternate Drawables, each assigned a maximum numerical value.
LexicalHandler	SAX2 extension handler for lexical events.
LightingColorFilter
LinearGradient
LinearInterpolator	An interpolator where the rate of change is constant
LinearLayout	A Layout that arranges its children in a single column or a single row.
LinearLayout.LayoutParams	Per-child layout information associated with ViewLinearLayout.
LineBackgroundSpan
LineFormatter	Interface for formatting elements of the HEAD section of an HTTP message.
LineHeightSpan
LineHeightSpan.WithDensity
LineNumberInputStream	This class was deprecated in API level 1. Use LineNumberReader instead.
LineNumberReader	Wraps an existing Reader and counts the line terminators encountered while reading the data.
LineParser	Interface for parsing lines in the HEAD section of an HTTP message.
LinkageError	LinkageError is the superclass of all error classes that occur when loading and linking class files.
LinkedBlockingDeque	An optionally-bounded blocking deque based on linked nodes.
LinkedBlockingQueue	An optionally-bounded blocking queue based on linked nodes.
LinkedHashMap	LinkedHashMap is an implementation of Map that guarantees iteration order.
LinkedHashSet	LinkedHashSet is a variant of HashSet.
LinkedList	LinkedList is an implementation of List, backed by a doubly-linked list.
Linkify	Linkify take a piece of text and a regular expression and turns all of the regex matches in the text into clickable links.
Linkify.MatchFilter	MatchFilter enables client code to have more control over what is allowed to match and become a link, and what is not.
Linkify.TransformFilter	TransformFilter enables client code to have more control over how matched patterns are represented as URLs.
LinkMovementMethod	A movement method that traverses links in the text buffer and scrolls if necessary.
List	A List is a collection which maintains an ordering for its elements.
ListActivity	An activity that displays a list of items by binding to a data source such as an array or Cursor, and exposes event handlers when the user selects an item.
ListAdapter	Extended Adapter that is the bridge between a ListView and the data that backs the list.
ListFragment	A fragment that displays a list of items by binding to a data source such as an array or Cursor, and exposes event handlers when the user selects an item.
ListFragment	Static library support version of the framework’s ListFragment.
ListIterator	An ListIterator is used to sequence over a List of objects.
ListPopupWindow	A ListPopupWindow anchors itself to a host view and displays a list of choices.
ListPopupWindowCompat	Helper for accessing features in ListPopupWindow introduced after API level 4 in a backwards compatible fashion.
ListPreference	A Preference that displays a list of entries as a dialog.
ListResourceBundle	ListResourceBundle is the abstract superclass of classes which provide resources by implementing the getContents() method to return the list of resources.
ListView	A view that shows items in a vertically scrolling list.
ListView.FixedViewInfo	A class that represents a fixed view in a list, for example a header at the top or a footer at the bottom.
ListViewAutoScrollHelper	An implementation of AutoScrollHelper that knows how to scroll through a ListView.
LiveFolders	This class was deprecated in API level 14. Live folders are no longer supported by Android. These have been replaced by the new AppWidget Collection APIs introduced in HONEYCOMB. These provide all of the features of live folders plus many more. The use of live folders is greatly discouraged because of security issues they introduce – publishing a live folder requires making all data show for the live folder available to all applications with no permissions protecting it.
Loader	An abstract class that performs asynchronous loading of data.
Loader	Static library support version of the framework’s Loader.
Loader.ForceLoadContentObserver	An implementation of a ContentObserver that takes care of connecting it to the Loader to have the loader re-load its data when the observer is told it has changed.
Loader.ForceLoadContentObserver	An implementation of a ContentObserver that takes care of connecting it to the Loader to have the loader re-load its data when the observer is told it has changed.
Loader.OnLoadCanceledListener	Interface that is implemented to discover when a Loader has been canceled before it finished loading its data.
Loader.OnLoadCompleteListener	Interface that is implemented to discover when a Loader has finished loading its data.
Loader.OnLoadCompleteListener	Interface that is implemented to discover when a Loader has finished loading its data.
LoaderManager	Interface associated with an Activity or Fragment for managing one or more Loader instances associated with it.
LoaderManager	Static library support version of the framework’s LoaderManager.
LoaderManager.LoaderCallbacks	Callback interface for a client to interact with the manager.
LoaderManager.LoaderCallbacks	Callback interface for a client to interact with the manager.
LoaderTestCase	A convenience class for testing Loaders.
LocalActivityManager	This class was deprecated in API level 13. Use the new Fragment and FragmentManager APIs instead; these are also available on older platforms through the Android compatibility package.
LocalBroadcastManager	Helper to register for and send broadcasts of Intents to local objects within your process.
Locale	Locale represents a language/country/variant combination.
LocaleSpan	Changes the Locale of the text to which the span is attached.
LocalServerSocket	non-standard class for creating inbound UNIX-domain socket on the Android platform, this is created in the Linux non-filesystem namespace.
LocalSocket	Creates a (non-server) socket in the UNIX-domain namespace.
LocalSocketAddress	A UNIX-domain (AF_LOCAL) socket address.
LocalSocketAddress.Namespace	The namespace that this address exists in.
Location	A data class representing a geographic location.
LocationListener	Used for receiving notifications from the LocationManager when the location has changed.
LocationManager	This class provides access to the system location services.
LocationProvider	An abstract superclass for location providers.
Locator	Interface for associating a SAX event with a document location.
Locator2	SAX2 extension to augment the entity information provided though a Locator.
Locator2Impl	SAX2 extension helper for holding additional Entity information, implementing the Locator2 interface.
LocatorImpl	Provide an optional convenience implementation of Locator.
Lock	Lock implementations provide more extensive locking operations than can be obtained using synchronized methods and statements.
LockSupport	Basic thread blocking primitives for creating locks and other synchronization classes.
Log	API for sending log output.
Logger	Loggers are used to log records to a variety of destinations such as log files or the console.
LoggingMXBean	LoggingMXBean is the management interface for the logging sub-system.
LoggingPermission	Legacy security code; do not use.
LoggingSessionInputBuffer	Logs all data read to the wire LOG.
LoggingSessionOutputBuffer	Logs all data written to the wire LOG.
LoginException	Base class for exceptions that are thrown when a login error occurs.
LoginFilter	Abstract class for filtering login-related text (user names and passwords)
LoginFilter.PasswordFilterGMail	This filter is compatible with GMail passwords which restricts characters to the Latin-1 (ISO8859-1) char set.
LoginFilter.UsernameFilterGeneric	This filter rejects characters in the user name that are not compatible with Google login.
LoginFilter.UsernameFilterGMail	This filter rejects characters in the user name that are not compatible with GMail account creation.
LogManager	LogManager is used to maintain configuration properties of the logging framework, and to manage a hierarchical namespace of all named Logger objects.
LogPrinter	Implementation of a Printer that sends its output to the system log.
LogRecord	A LogRecord object represents a logging request.
Long	The wrapper for the primitive type long.
Long2	Class for exposing the native RenderScript long2 type back to the Android system.
Long2	Class for exposing the native RenderScript long2 type back to the Android system.
Long3	Class for exposing the native RenderScript long3 type back to the Android system.
Long3	Class for exposing the native RenderScript long3 type back to the Android system.
Long4	Class for exposing the native RenderScript long4 type back to the Android system.
Long4	Class for exposing the native RenderScript long4 type back to the Android system.
LongBuffer	A buffer of longs.
LongSparseArray	SparseArray mapping longs to Objects, a version of the platform’s LongSparseArray that can be used on older versions of the platform.
LongSparseArray	SparseArray mapping longs to Objects.
Looper	Class used to run a message loop for a thread.
LoudnessEnhancer	LoudnessEnhancer is an audio effect for increasing audio loudness.
LruCache	Static library version of LruCache.
LruCache	A cache that holds strong references to a limited number of values.
LSException	Parser or write operations may throw an LSException if the processing is stopped.
LSInput	This interface represents an input source for data.
LSOutput	This interface represents an output destination for data.
LSParser	An interface to an object that is able to build, or augment, a DOM tree from various input sources.
LSParserFilter	LSParserFilters provide applications the ability to examine nodes as they are being constructed while parsing.
LSResourceResolver	LSResourceResolver provides a way for applications to redirect references to external resources.
LSSerializer	A LSSerializer provides an API for serializing (writing) a DOM document out into XML.
M
Mac	This class provides the public API for Message Authentication Code (MAC) algorithms.
MacSpi	The Service-Provider Interface (SPI) definition for the Mac class.
MailTo	MailTo URL parser This class parses a mailto scheme URL and then can be queried for the parsed parameters.
MalformedChallengeException	Signals that authentication challenge is in some way invalid or illegal in the given context
MalformedChunkCodingException	Signals a malformed chunked stream.
MalformedCookieException	Signals that a cookie is in some way invalid or illegal in a given context
MalformedInputException	A MalformedInputException is thrown when a malformed input is encountered, for example if a byte sequence is illegal for the given charset.
MalformedJsonException	Thrown when a reader encounters malformed JSON.
MalformedParameterizedTypeException	Indicates that a malformed parameterized type has been encountered by a reflective method.
MalformedURLException	This exception is thrown when a program attempts to create an URL from an incorrect specification.
ManagedClientConnection	A client-side connection with advanced connection logic.
ManagerFactoryParameters	The marker interface for key manager factory parameters.
Manifest
Manifest	The Manifest class is used to obtain attribute information for a JarFile and its entries.
Manifest.permission
Manifest.permission_group
Map	A Map is a data structure consisting of a set of keys and values in which each key is mapped to a single value.
Map.Entry	Map.Entry is a key/value mapping contained in a Map.
MappedByteBuffer	MappedByteBuffer is a special kind of direct byte buffer which maps a region of file to memory.
MarginLayoutParamsCompat	Helper for accessing API features in MarginLayoutParams added after API 4.
MaskFilter	MaskFilter is the base class for object that perform transformations on an alpha-channel mask before drawing it.
MaskFilterSpan
Matcher	The result of applying a Pattern to a given input.
MatchResult	Holds the results of a successful match of a Pattern against a given string.
Math	Class Math provides basic math constants and operations such as trigonometric functions, hyperbolic functions, exponential, logarithms, etc.
MathContext	Immutable objects describing settings such as rounding mode and digit precision for the numerical operations provided by class BigDecimal.
Matrix	The Matrix class holds a 3x3 matrix for transforming coordinates.
Matrix	Matrix math utilities.
Matrix.ScaleToFit	Controlls how the src rect should align into the dst rect for setRectToRect().
Matrix2f	Class for exposing the native RenderScript rs_matrix2x2 type back to the Android system.
Matrix2f	Class for exposing the native RenderScript rs_matrix2x2 type back to the Android system.
Matrix3f	Class for exposing the native RenderScript rs_matrix3x3 type back to the Android system.
Matrix3f	Class for exposing the native RenderScript rs_matrix3x3 type back to the Android system.
Matrix4f	Class for exposing the native RenderScript rs_matrix4x4 type back to the Android system.
Matrix4f	Class for exposing the native RenderScript rs_matrix4x4 type back to the Android system.
MatrixCursor	A mutable cursor implementation backed by an array of Objects.
MatrixCursor.RowBuilder	Builds a row of values using either of these approaches:
	Values can be added with explicit column ordering using add(Object), which starts from the left-most column and adds one column value at a time.
MediaActionSound	A class for producing sounds that match those produced by various actions taken by the media and camera APIs.
MediaCodec	MediaCodec class can be used to access low-level media codec, i.e.
MediaCodec.BufferInfo	Per buffer metadata includes an offset and size specifying the range of valid data in the associated codec buffer.
MediaCodec.CryptoException	Thrown when a crypto error occurs while queueing a secure input buffer.
MediaCodec.CryptoInfo	Metadata describing the structure of a (at least partially) encrypted input sample.
MediaCodecInfo	Provides information about a given media codec available on the device.
MediaCodecInfo.CodecCapabilities	Encapsulates the capabilities of a given codec component.
MediaCodecInfo.CodecProfileLevel	Encapsulates the profiles available for a codec component.
MediaCodecList	Allows you to enumerate available codecs, each specified as a MediaCodecInfo object, find a codec supporting a given format and query the capabilities of a given codec.
MediaControlIntent	Constants for media control intents.
MediaController	A view containing controls for a MediaPlayer.
MediaController.MediaPlayerControl
MediaCrypto	MediaCrypto class can be used in conjunction with MediaCodec to decode encrypted media data.
MediaCryptoException	Exception thrown if MediaCrypto object could not be instantiated for whatever reason.
MediaDrm	MediaDrm can be used to obtain keys for decrypting protected media streams, in conjunction with MediaCrypto.
MediaDrm.CryptoSession	In addition to supporting decryption of DASH Common Encrypted Media, the MediaDrm APIs provide the ability to securely deliver session keys from an operator’s session key server to a client device, based on the factory-installed root of trust, and then perform encrypt, decrypt, sign and verify operations with the session key on arbitrary user data.
MediaDrm.KeyRequest	Contains the opaque data an app uses to request keys from a license server
MediaDrm.OnEventListener	Interface definition for a callback to be invoked when a drm event occurs
MediaDrm.ProvisionRequest	Contains the opaque data an app uses to request a certificate from a provisioning server
MediaDrmException	Base class for MediaDrm exceptions
MediaExtractor	MediaExtractor facilitates extraction of demuxed, typically encoded, media data from a data source.
MediaFormat	Encapsulates the information describing the format of media data, be it audio or video.
MediaItemMetadata	Constants for specifying metadata about a media item as a Bundle.
MediaItemStatus	Describes the playback status of a media item.
MediaItemStatus.Builder	Builder for media item status objects.
MediaMetadataEditor	An abstract class for editing and storing metadata that can be published by RemoteControlClient.
MediaMetadataRetriever	MediaMetadataRetriever class provides a unified interface for retrieving frame and meta data from an input media file.
MediaMuxer	MediaMuxer facilitates muxing elementary streams.
MediaMuxer.OutputFormat	Defines the output format.
MediaPlayer	MediaPlayer class can be used to control playback of audio/video files and streams.
MediaPlayer.OnBufferingUpdateListener	Interface definition of a callback to be invoked indicating buffering status of a media resource being streamed over the network.
MediaPlayer.OnCompletionListener	Interface definition for a callback to be invoked when playback of a media source has completed.
MediaPlayer.OnErrorListener	Interface definition of a callback to be invoked when there has been an error during an asynchronous operation (other errors will throw exceptions at method call time).
MediaPlayer.OnInfoListener	Interface definition of a callback to be invoked to communicate some info and/or warning about the media or its playback.
MediaPlayer.OnPreparedListener	Interface definition for a callback to be invoked when the media source is ready for playback.
MediaPlayer.OnSeekCompleteListener	Interface definition of a callback to be invoked indicating the completion of a seek operation.
MediaPlayer.OnTimedTextListener	Interface definition of a callback to be invoked when a timed text is available for display.
MediaPlayer.OnVideoSizeChangedListener	Interface definition of a callback to be invoked when the video size is first known or updated
MediaPlayer.TrackInfo	Class for MediaPlayer to return each audio/video/subtitle track’s metadata.
MediaRecorder	Used to record audio and video.
MediaRecorder.AudioEncoder	Defines the audio encoding.
MediaRecorder.AudioSource	Defines the audio source.
MediaRecorder.OnErrorListener	Interface definition for a callback to be invoked when an error occurs while recording.
MediaRecorder.OnInfoListener	Interface definition for a callback to be invoked when an error occurs while recording.
MediaRecorder.OutputFormat	Defines the output format.
MediaRecorder.VideoEncoder	Defines the video encoding.
MediaRecorder.VideoSource	Defines the video source.
MediaRouteActionProvider	The media route action provider displays a media route button in the application’s ActionBar to allow the user to select routes and to control the currently selected route.
MediaRouteActionProvider	The media route action provider displays a media route button in the application’s ActionBar to allow the user to select routes and to control the currently selected route.
MediaRouteButton
MediaRouteButton	The media route button allows the user to select routes and to control the currently selected route.
MediaRouteChooserDialog	This class implements the route chooser dialog for MediaRouter.
MediaRouteChooserDialogFragment	Media route chooser dialog fragment.
MediaRouteControllerDialog	This class implements the route controller dialog for MediaRouter.
MediaRouteControllerDialogFragment	Media route controller dialog fragment.
MediaRouteDescriptor	Describes the properties of a route.
MediaRouteDescriptor.Builder	Builder for media route descriptors.
MediaRouteDialogFactory	The media route dialog factory is responsible for creating the media route chooser and controller dialogs as needed.
MediaRouteDiscoveryFragment	Media route discovery fragment.
MediaRouteDiscoveryRequest	Describes the kinds of routes that the media router would like to discover and whether to perform active scanning.
MediaRouteProvider	Media route providers are used to publish additional media routes for use within an application.
MediaRouteProvider.Callback	Callback which is invoked when route information becomes available or changes.
MediaRouteProvider.ProviderMetadata	Describes properties of the route provider’s implementation.
MediaRouteProvider.RouteController	Provides control over a particular route.
MediaRouteProviderDescriptor	Describes the state of a media route provider and the routes that it publishes.
MediaRouteProviderDescriptor.Builder	Builder for media route provider descriptors.
MediaRouteProviderService	Base class for media route provider services.
MediaRouter	MediaRouter allows applications to control the routing of media channels and streams from the current device to external speakers and destination devices.
MediaRouter	MediaRouter allows applications to control the routing of media channels and streams from the current device to external speakers and destination devices.
MediaRouter.Callback	Interface for receiving events about media routing changes.
MediaRouter.Callback	Interface for receiving events about media routing changes.
MediaRouter.ControlRequestCallback	Callback which is invoked with the result of a media control request.
MediaRouter.ProviderInfo	Provides information about a media route provider.
MediaRouter.RouteCategory	Definition of a category of routes.
MediaRouter.RouteGroup	Information about a route that consists of multiple other routes in a group.
MediaRouter.RouteInfo	Information about a media route.
MediaRouter.RouteInfo	Provides information about a media route.
MediaRouter.SimpleCallback	Stub implementation of MediaRouter.Callback.
MediaRouter.UserRouteInfo	Information about a route that the application may define and modify.
MediaRouter.VolumeCallback	Interface for receiving events about volume changes.
MediaRouteSelector	Describes the capabilities of routes that applications would like to discover and use.
MediaRouteSelector.Builder	Builder for media route selectors.
MediaScannerConnection	MediaScannerConnection provides a way for applications to pass a newly created or downloaded media file to the media scanner service.
MediaScannerConnection.MediaScannerConnectionClient	An interface for notifying clients of MediaScannerConnection when a connection to the MediaScanner service has been established and when the scanning of a file has completed.
MediaScannerConnection.OnScanCompletedListener	Interface for notifying clients of the result of scanning a requested media file.
MediaSessionStatus	Describes the playback status of a media session.
MediaSessionStatus.Builder	Builder for media session status objects.
MediaStore	The Media provider contains meta data for all available media on both internal and external storage devices.
MediaStore.Audio	Container for all audio content.
MediaStore.Audio.AlbumColumns	Columns representing an album
MediaStore.Audio.Albums	Contains artists for audio files
MediaStore.Audio.ArtistColumns	Columns representing an artist
MediaStore.Audio.Artists	Contains artists for audio files
MediaStore.Audio.Artists.Albums	Sub-directory of each artist containing all albums on which a song by the artist appears.
MediaStore.Audio.AudioColumns	Columns for audio file that show up in multiple tables.
MediaStore.Audio.Genres	Contains all genres for audio files
MediaStore.Audio.Genres.Members	Sub-directory of each genre containing all members.
MediaStore.Audio.GenresColumns	Columns representing an audio genre
MediaStore.Audio.Media
MediaStore.Audio.Playlists	Contains playlists for audio files
MediaStore.Audio.Playlists.Members	Sub-directory of each playlist containing all members.
MediaStore.Audio.PlaylistsColumns	Columns representing a playlist
MediaStore.Files	Media provider table containing an index of all files in the media storage, including non-media files.
MediaStore.Files.FileColumns	Fields for master table for all media files.
MediaStore.Images	Contains meta data for all available images.
MediaStore.Images.ImageColumns
MediaStore.Images.Media
MediaStore.Images.Thumbnails	This class allows developers to query and get two kinds of thumbnails: MINI_KIND: 512 x 384 thumbnail MICRO_KIND: 96 x 96 thumbnail
MediaStore.MediaColumns	Common fields for most MediaProvider tables
MediaStore.Video
MediaStore.Video.Media
MediaStore.Video.Thumbnails	This class allows developers to query and get two kinds of thumbnails: MINI_KIND: 512 x 384 thumbnail MICRO_KIND: 96 x 96 thumbnail
MediaStore.Video.VideoColumns
MediaSyncEvent	The MediaSyncEvent class defines events that can be used to synchronize playback or capture actions between different players and recorders.
MediumTest	Marks a test that should run as part of the medium tests.
Member	Common interface providing access to reflective information on class members.
MemoryFile	MemoryFile is a wrapper for the Linux ashmem driver.
MemoryHandler	A Handler put the description of log events into a cycled memory buffer.
Menu	Interface for managing the items in a menu.
MenuCompat	Helper for accessing features in Menu introduced after API level 4 in a backwards compatible fashion.
MenuInflater	This class is used to instantiate menu XML files into Menu objects.
MenuItem	Interface for direct access to a previously created menu item.
MenuItem.OnActionExpandListener	Interface definition for a callback to be invoked when a menu item marked with SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is expanded or collapsed.
MenuItem.OnMenuItemClickListener	Interface definition for a callback to be invoked when a menu item is clicked.
MenuItemCompat	Helper for accessing features in MenuItem introduced after API level 4 in a backwards compatible fashion.
MenuItemCompat.OnActionExpandListener	Interface definition for a callback to be invoked when a menu item marked with SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is expanded or collapsed.
MergeCursor	A convience class that lets you present an array of Cursors as a single linear Cursor.
Message	Defines a message containing a description and arbitrary data object that can be sent to a Handler.
MessageDigest	Uses a one-way hash function to turn an arbitrary number of bytes into a fixed-length byte sequence.
MessageDigestSpi	MessageDigestSpi is the Service Provider Interface (SPI) definition for MessageDigest.
MessageFormat	Produces concatenated messages in language-neutral way.
MessageFormat.Field	The instances of this inner class are used as attribute keys in AttributedCharacterIterator that the formatToCharacterIterator(Object) method returns.
MessageQueue	Low-level class holding the list of messages to be dispatched by a Looper.
MessageQueue.IdleHandler	Callback interface for discovering when a thread is going to block waiting for more messages.
Messenger	Reference to a Handler, which others can use to send messages to it.
MetaKeyKeyListener	This base class encapsulates the behavior for tracking the state of meta keys such as SHIFT, ALT and SYM as well as the pseudo-meta state of selecting text.
Method	This class represents a method.
MethodNotSupportedException	Indicates that an HTTP method is not supported.
MetricAffectingSpan	The classes that affect character-level text formatting in a way that changes the width or height of characters extend this class.
MGF1ParameterSpec	The parameter specification for the Mask Generation Function (MGF1) in the RSA-PSS Signature and OAEP Padding scheme.
MifareClassic	Provides access to MIFARE Classic properties and I/O operations on a Tag.
MifareUltralight	Provides access to MIFARE Ultralight properties and I/O operations on a Tag.
MimeTypeMap	Two-way map that maps MIME-types to file extensions and vice versa.
MissingFormatArgumentException	A MissingFormatArgumentException will be thrown if there is no corresponding argument with the specified conversion or an argument index that refers to a missing argument.
MissingFormatWidthException	A MissingFormatWidthException will be thrown if the format width is missing but is required.
MissingResourceException	A MissingResourceException is thrown by ResourceBundle when a resource bundle cannot be found or a resource is missing from a resource bundle.
MockApplication	A mock Application class.
MockContentProvider	Mock implementation of ContentProvider.
MockContentResolver	An extension of ContentResolver that is designed for testing.
MockContext	A mock Context class.
MockCursor	A mock Cursor class that isolates the test code from real Cursor implementation.
MockDialogInterface	A mock DialogInterface class.
MockPackageManager	A mock PackageManager class.
MockResources	A mock Resources class.
Modifier	This class provides static methods to decode class and member modifiers.
MonthDisplayHelper	Helps answer common questions that come up when displaying a month in a 6 row calendar grid format.
MoreAsserts	Contains additional assertion methods not found in JUnit.
MotionEvent	Object used to report movement (mouse, pen, finger, trackball) events.
MotionEvent.PointerCoords	Transfer object for pointer coordinates.
MotionEvent.PointerProperties	Transfer object for pointer properties.
MotionEventCompat	Helper for accessing features in MotionEvent introduced after API level 4 in a backwards compatible fashion.
MovementMethod	Provides cursor positioning, scrolling and text selection functionality in a TextView.
Movie
MtpConstants	A class containing constants in the MTP and PTP specifications.
MtpDevice	This class represents an MTP or PTP device connected on the USB host bus.
MtpDeviceInfo	This class encapsulates information about an MTP device.
MtpObjectInfo	This class encapsulates information about an object on an MTP device.
MtpStorageInfo	This class encapsulates information about a storage unit on an MTP device.
MultiAutoCompleteTextView	An editable text view, extending AutoCompleteTextView, that can show completion suggestions for the substring of the text where the user is typing instead of necessarily for the entire thing.
MultiAutoCompleteTextView.CommaTokenizer	This simple Tokenizer can be used for lists where the items are separated by a comma and one or more spaces.
MultiAutoCompleteTextView.Tokenizer
MulticastSocket	This class implements a multicast socket for sending and receiving IP multicast datagram packets.
MultihomePlainSocketFactory	Socket factory that implements a simple multi-home fail-over on connect failure, provided the same hostname resolves to multiple InetAddresses.
MultiSelectListPreference	A Preference that displays a list of entries as a dialog.
MultiTapKeyListener	This is the standard key listener for alphabetic input on 12-key keyboards.
MutableContextWrapper	Special version of ContextWrapper that allows the base context to be modified after it is initially set.
N
NamedNodeMap	Objects implementing the NamedNodeMap interface are used to represent collections of nodes that can be accessed by name.
NameList	The NameList interface provides the abstraction of an ordered collection of parallel pairs of name and namespace values (which could be null values), without defining or constraining how this collection is implemented.
NamespaceContext	Interface for read only XML Namespace context processing.
NamespaceSupport	Encapsulate Namespace logic for use by applications using SAX, or internally by SAX drivers.
NameValuePair	A simple class encapsulating an attribute/value pair.
NativeActivity	Convenience for implementing an activity that will be implemented purely in native code.
NavigableMap	A SortedMap extended with navigation methods returning the closest matches for given search targets.
NavigableSet	A SortedSet extended with navigation methods reporting closest matches for given search targets.
NavUtils	NavUtils provides helper functionality for applications implementing recommended Android UI navigation patterns.
NClob
Ndef	Provides access to NDEF content and operations on a Tag.
NdefFormatable	Provide access to NDEF format operations on a Tag.
NdefMessage	Represents an immutable NDEF Message.
NdefRecord	Represents an immutable NDEF Record.
NegativeArraySizeException	Thrown when an attempt is made to create an array with a size of less than zero.
NeighboringCellInfo	Represents the neighboring cell information, including Received Signal Strength and Cell ID location.
NetPermission	Legacy security code; do not use.
NetscapeDomainHandler
NetscapeDraftHeaderParser
NetscapeDraftSpec	Netscape cookie draft compliant cookie policy
NetscapeDraftSpecFactory
NetworkErrorException
NetworkInfo	Describes the status of a network interface.
NetworkInfo.DetailedState	The fine-grained state of a network connection.
NetworkInfo.State	Coarse-grained network state.
NetworkInterface	This class is used to represent a network interface of the local device.
NetworkOnMainThreadException	The exception that is thrown when an application attempts to perform a networking operation on its main thread.
NfcA	Provides access to NFC-A (ISO 14443-3A) properties and I/O operations on a Tag.
NfcAdapter	Represents the local NFC adapter.
NfcAdapter.CreateBeamUrisCallback
NfcAdapter.CreateNdefMessageCallback	A callback to be invoked when another NFC device capable of NDEF push (Android Beam) is within range.
NfcAdapter.OnNdefPushCompleteCallback	A callback to be invoked when the system successfully delivers your NdefMessage to another device.
NfcAdapter.ReaderCallback	A callback to be invoked when the system finds a tag while the foreground activity is operating in reader mode.
NfcB	Provides access to NFC-B (ISO 14443-3B) properties and I/O operations on a Tag.
NfcBarcode	Provides access to tags containing just a barcode.
NfcEvent	Wraps information associated with any NFC event.
NfcF	Provides access to NFC-F (JIS 6319-4) properties and I/O operations on a Tag.
NfcManager	High level manager used to obtain an instance of an NfcAdapter.
NfcV	Provides access to NFC-V (ISO 15693) properties and I/O operations on a Tag.
NinePatch	The NinePatch class permits drawing a bitmap in nine or more sections.
NinePatchDrawable	A resizeable bitmap, with stretchable areas that you define.
NoClassDefFoundError	Thrown when the VM is unable to locate a class which it has been asked to load.
NoConnectionPendingException	A NoConnectionPendingException is thrown if SocketChannel’s finishConnect method is called before the SocketChannel’s connect(java.net.SocketAddress) connect} method completed without error.
NoConnectionReuseStrategy	A strategy that never re-uses a connection.
NoCopySpan	This interface should be added to a span object that should not be copied into a new Spenned when performing a slice or copy operation on the original Spanned it was placed in.
NoCopySpan.Concrete	Convenience equivalent for when you would just want a new Object() for a span but want it to be no-copy.
Node	The Node interface is the primary datatype for the entire Document Object Model.
NodeChangeEvent	This is the event class to indicate that one child of the preference node has been added or deleted.
NodeChangeListener	This interface is used to handle preference node change events.
NodeList	The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented.
NoHttpResponseException	Signals that the target server failed to respond with a valid HTTP response.
NoiseSuppressor	Noise Suppressor (NS).
NonReadableChannelException	A NonReadableChannelException is thrown when attempting to read from a channel that is not open for reading.
NonRepeatableRequestException	Signals failure to retry the request due to non-repeatable request entity.
NonWritableChannelException	A NonWritableChannelException is thrown when attempting to write to a channel that is not open for writing.
Normalizer	Provides normalization functions according to Unicode Standard Annex #15: Unicode Normalization Forms.
Normalizer.Form	The normalization forms supported by the Normalizer.
NoRouteToHostException	The NoRouteToHostException will be thrown while attempting to connect to a remote host but the host cannot be reached for instance because of a badly configured router or a blocking firewall.
NoSuchAlgorithmException	NoSuchAlgorithmException indicates that a requested algorithm could not be found.
NoSuchElementException	Thrown when trying to retrieve an element past the end of an Enumeration or Iterator.
NoSuchFieldError	Thrown when the VM notices that a program tries to reference, on a class or object, a field that does not exist.
NoSuchFieldException	Thrown when the VM notices that a program tries to reference, on a class or object, a field that does not exist.
NoSuchMethodError	Thrown when the VM notices that a program tries to reference, on a class or object, a method that does not exist.
NoSuchMethodException	Thrown when the VM notices that a program tries to reference, on a class or object, a method that does not exist.
NoSuchPaddingException	The exception that is thrown when the requested padding mechanism is not supported.
NoSuchPropertyException	Thrown when code requests a Property on a class that does not expose the appropriate method or field.
NoSuchProviderException	NoSuchProviderException indicates that a requested security provider could not be found.
NotActiveException	Signals that a serialization-related method has been invoked in the wrong place.
Notation	This interface represents a notation declared in the DTD.
Notification	A class that represents how a persistent notification is to be presented to the user using the NotificationManager.
Notification.Action	Structure to encapsulate a named action that can be shown as part of this notification.
Notification.BigPictureStyle	Helper class for generating large-format notifications that include a large image attachment.
Notification.BigTextStyle	Helper class for generating large-format notifications that include a lot of text.
Notification.Builder	Builder class for Notification objects.
Notification.InboxStyle	Helper class for generating large-format notifications that include a list of (up to 5) strings.
Notification.Style	An object that can apply a rich notification style to a Notification.Builder object.
NotificationCompat	Helper for accessing features in Notification introduced after API level 4 in a backwards compatible fashion.
NotificationCompat.Action
NotificationCompat.BigPictureStyle	Helper class for generating large-format notifications that include a large image attachment.
NotificationCompat.BigTextStyle	Helper class for generating large-format notifications that include a lot of text.
NotificationCompat.Builder	Builder class for NotificationCompat objects.
NotificationCompat.InboxStyle	Helper class for generating large-format notifications that include a list of (up to 5) strings.
NotificationCompat.Style	An object that can apply a rich notification style to a Notification.Builder object.
NotificationListenerService	A service that receives calls from the system when new notifications are posted or removed.
NotificationManager	Class to notify the user of events that happen. This is how you tell the user that something has happened in the background.
NotOwnerException	The exception that is thrown when an action that requires ownership is attempted by a principal that is not an owner of the object for which ownership is required.
NotProvisionedException	Exception thrown when an operation on a MediaDrm object is attempted and the device does not have a certificate.
NotSerializableException	Signals that an object that is not serializable has been passed into the ObjectOutput.writeObject() method.
NotYetBoundException	A NotYetBoundException is thrown if the server socket channel is not bound before an I/O operation is made.
NotYetConnectedException	A NotYetConnectedException is thrown if the socket channel is not connected before an I/O operation is invoked.
NsdManager	The Network Service Discovery Manager class provides the API to discover services on a network.
NsdManager.DiscoveryListener	Interface for callback invocation for service discovery
NsdManager.RegistrationListener	Interface for callback invocation for service registration
NsdManager.ResolveListener	Interface for callback invocation for service resolution
NsdServiceInfo	A class representing service information for network service discovery
NTCredentials	Credentials specific to the Windows platform.
NTLMEngine	Abstract NTLM authentication engine.
NTLMEngineException	Signals NTLM protocol failure.
NTLMScheme
NTUserPrincipal	NT (MS Windows specific) user principal used for HTTP authentication
NullCipher	This class provides an identity cipher that does not transform the input data in any way.
NullPointerException	Thrown when a program tries to access a field or method of an object or an element of an array when there is no instance or array to use, that is if the object or array points to null.
Number	The abstract superclass of the classes which represent numeric base types (that is Byte, Short, Integer, Long, Float, and Double.
NumberFormat	The abstract base class for all number formats.
NumberFormat.Field	The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that the formatToCharacterIterator(Object) method returns.
NumberFormatException	Thrown when an invalid value is passed to a string-to-number conversion method.
NumberKeyListener	For numeric text entry
	As for all implementations of KeyListener, this class is only concerned with hardware keyboards.
NumberPicker	A widget that enables the user to select a number form a predefined range.
NumberPicker.Formatter	Interface used to format current value into a string for presentation.
NumberPicker.OnScrollListener	Interface to listen for the picker scroll state.
NumberPicker.OnValueChangeListener	Interface to listen for changes of the current value.
NumericShaper	The Class NumericShaper provides methods to convert latin character codes to unicode character codes.
O
OAEPParameterSpec	The algorithm parameter specification for the OAEP Padding algorithm.
ObbInfo	Basic information about a Opaque Binary Blob (OBB) that reflects the info from the footer on the OBB file.
ObbScanner	Class to scan Opaque Binary Blob (OBB) files.
Object	The root class of the Java class hierarchy.
ObjectAnimator	This subclass of ValueAnimator provides support for animating properties on target objects.
ObjectInput	Defines an interface for classes that allow reading serialized objects.
ObjectInputStream	A specialized InputStream that is able to read (deserialize) Java objects as well as primitive data types (int, byte, char etc.).
ObjectInputStream.GetField	GetField is an inner class that provides access to the persistent fields read from the source stream.
ObjectInputValidation	A callback interface for post-deserialization checks on objects.
ObjectOutput	Defines an interface for classes that allow reading serialized objects.
ObjectOutputStream	A specialized OutputStream that is able to write (serialize) Java objects as well as primitive data types (int, byte, char etc.).
ObjectOutputStream.PutField	PutField is an inner class to provide access to the persistent fields that are written to the target stream.
Objects	Utility methods for objects.
ObjectStreamClass	Represents a descriptor for identifying a class during serialization and deserialization.
ObjectStreamConstants	A helper interface with constants used by the serialization implementation.
ObjectStreamException	Signals some sort of problem during either serialization or deserialization of objects.
ObjectStreamField	Describes a field for the purpose of serialization.
Observable	Provides methods for registering or unregistering arbitrary observers in an ArrayList.
Observable	Observable is used to notify a group of Observer objects when a change occurs.
Observer	Observer is the interface to be implemented by objects that receive notification of updates on an Observable object.
OffHostApduService	OffHostApduService is a convenience Service class that can be extended to describe one or more NFC applications that are residing off-host, for example on an embedded secure element or a UICC.
OnAccountsUpdateListener	An interface that contains the callback used by the AccountManager
OnObbStateChangeListener	Used for receiving notifications from StorageManager about OBB file states.
OpcodeInfo	Information about Dalvik opcodes.
Opcodes	A list of all normal (not implementation-specific) Dalvik opcodes.
OpenableColumns	These are standard columns for openable URIs.
OperatedClientConnection	A client-side connection that relies on outside logic to connect sockets to the appropriate hosts.
OperationApplicationException	Thrown when an application of a ContentProviderOperation fails due the specified constraints.
OperationCanceledException
OperationCanceledException	An exception type that is thrown when an operation in progress is canceled.
OptionalDataException	Signals that the ObjectInputStream class encountered a primitive type (int, char etc.) instead of an object instance in the input stream.
OrientationEventListener	Helper class for receiving notifications from the SensorManager when the orientation of the device has changed.
OrientationListener	This class was deprecated in API level 3. use OrientationEventListener instead. This class internally uses the OrientationEventListener.
OrientedBoundingBox	An oriented bounding box
OutOfMemoryError	Thrown when a request for memory is made that can not be satisfied using the available platform resources.
OutputKeys	Provides string constants that can be used to set output properties for a Transformer, or to retrieve output properties from a Transformer or Templates object.
OutputStream	A writable sink for bytes.
OutputStreamWriter	A class for turning a character stream into a byte stream.
OvalShape	Defines an oval shape.
OverlappingFileLockException	An OverlappingFileLockException is thrown when attempting to acquire a lock that overlaps an existing or pending lock held by this process.
Override	Annotation type used to mark methods that override a method declaration in a superclass.
OverScroller	This class encapsulates scrolling with the ability to overshoot the bounds of a scrolling operation.
OvershootInterpolator	An interpolator where the change flings forward and overshoots the last value then comes back.
Owner	The interface to manage owners of objects that require ownership.
P
Pack200	Class factory for Pack200.Packer and Pack200.Unpacker.
Pack200.Packer	The interface defining the API for converting a JAR file to an output stream in the Pack200 format.
Pack200.Unpacker	The interface defining the API for converting a packed stream in the Pack200 format to a JAR file.
Package	Contains information about a Java package.
PackageInfo	Overall information about the contents of a package.
PackageItemInfo	Base class containing information common to all package items held by the package manager.
PackageItemInfo.DisplayNameComparator
PackageManager	Class for retrieving various kinds of information related to the application packages that are currently installed on the device.
PackageManager.NameNotFoundException	This exception is thrown when a given package, application, or component name cannot be found.
PackageStats	implementation of PackageStats associated with a application package.
PagerAdapter	Base class providing the adapter to populate pages inside of a ViewPager.
PageRange	Represents a range of pages.
PagerTabStrip	PagerTabStrip is an interactive indicator of the current, next, and previous pages of a ViewPager.
PagerTitleStrip	PagerTitleStrip is a non-interactive indicator of the current, next, and previous pages of a ViewPager.
Paint	The Paint class holds the style and color information about how to draw geometries, text and bitmaps.
Paint.Align	Align specifies how drawText aligns its text relative to the [x,y] coordinates.
Paint.Cap	The Cap specifies the treatment for the beginning and ending of stroked lines and paths.
Paint.FontMetrics	Class that describes the various metrics for a font at a given text size.
Paint.FontMetricsInt	Convenience method for callers that want to have FontMetrics values as integers.
Paint.Join	The Join specifies the treatment where lines and curve segments join on a stroked path.
Paint.Style	The Style specifies if the primitive being drawn is filled, stroked, or both (in the same color).
PaintDrawable	Drawable that draws its bounds in the given paint, with optional rounded corners.
PaintFlagsDrawFilter
Pair	Container to ease passing around a tuple of two objects.
ParagraphStyle	The classes that affect paragraph-level text formatting implement this interface.
ParameterizedType	This interface represents a parameterized type such as ‘Set’.
ParameterMetaData	An interface used to get information about the types and properties of parameters in a PreparedStatement.
Parcel	Container for a message (data and object references) that can be sent through an IBinder.
Parcelable	Interface for classes whose instances can be written to and restored from a Parcel.
Parcelable.ClassLoaderCreator	Specialization of Parcelable.Creator that allows you to receive the ClassLoader the object is being created in.
Parcelable.Creator	Interface that must be implemented and provided as a public CREATOR field that generates instances of your Parcelable class from a Parcel.
ParcelableCompat	Helper for accessing features in Parcelable introduced after API level 4 in a backwards compatible fashion.
ParcelableCompatCreatorCallbacks	Callbacks a Parcelable creator should implement.
ParcelableSpan	A special kind of Parcelable for objects that will serve as text spans.
ParcelFileDescriptor	The FileDescriptor returned by readFileDescriptor(), allowing you to close it when done with it.
ParcelFileDescriptor.AutoCloseInputStream	An InputStream you can create on a ParcelFileDescriptor, which will take care of calling ParcelFileDescriptor.close() for you when the stream is closed.
ParcelFileDescriptor.AutoCloseOutputStream	An OutputStream you can create on a ParcelFileDescriptor, which will take care of calling ParcelFileDescriptor.close() for you when the stream is closed.
ParcelFileDescriptor.FileDescriptorDetachedException	Exception that indicates that the file descriptor was detached.
ParcelFileDescriptor.OnCloseListener	Callback indicating that a ParcelFileDescriptor has been closed.
ParcelFormatException	The contents of a Parcel (usually during unmarshalling) does not contain the expected data.
ParcelUuid	This class is a Parcelable wrapper around UUID which is an immutable representation of a 128-bit universally unique identifier.
ParseException	Thrown when parsing a URL fails.
ParseException	Thrown when the string being parsed is not in the correct form.
ParseException	Indicates a parse error.
ParsePosition	Tracks the current position in a parsed string.
Parser	This interface was deprecated in API level 1. This interface has been replaced by the SAX2 XMLReader interface, which includes Namespace support.
ParserAdapter	Adapt a SAX1 Parser as a SAX2 XMLReader.
ParserConfigurationException	Indicates a serious configuration error.
ParserCursor	This class represents a context of a parsing operation:
	the current position the parsing operation is expected to start at
	the bounds limiting the scope of the parsing operation
ParserFactory	This class was deprecated in API level 1. This class works with the deprecated Parser interface.
PasswordAuthentication	This immutable class is a data structure that encapsulates username and password which is used by the Authenticator class.
PasswordCallback	Used in conjunction with a CallbackHandler to retrieve a password when needed.
PasswordTransformationMethod
Path	The Path class encapsulates compound (multiple contour) geometric paths consisting of straight line segments, quadratic curves, and cubic curves.
Path.Direction	Specifies how closed shapes (e.g.
Path.FillType	Enum for the ways a path may be filled.
Path.Op	The logical operations that can be performed when combining two paths.
PathClassLoader	Provides a simple ClassLoader implementation that operates on a list of files and directories in the local file system, but does not attempt to load classes from the network.
PathDashPathEffect
PathDashPathEffect.Style
PathEffect	PathEffect is the base class for objects in the Paint that affect the geometry of a drawing primitive before it is transformed by the canvas’ matrix and drawn.
PathMeasure
PathPermission	Description of permissions needed to access a particular path in a ProviderInfo.
PathShape	Creates geometric paths, utilizing the Path class.
Pattern	Patterns are compiled regular expressions.
PatternMatcher	A simple pattern matcher, which is safe to use on untrusted data: it does not provide full reg-exp support, only simple globbing that can not be used maliciously.
Patterns	Commonly used regular expression patterns.
PatternSyntaxException	Encapsulates a syntax error that occurred during the compilation of a Pattern.
PBEKey	The interface to a password-based-encryption key.
PBEKeySpec	The key specification for a password based encryption key.
PBEParameterSpec	The algorithm parameter specification for a password based encryption algorithm.
PdfDocument	This class enables generating a PDF document from native Android content.
PdfDocument.Page	This class represents a PDF document page.
PdfDocument.PageInfo	This class represents meta-data that describes a PDF PdfDocument.Page.
PdfDocument.PageInfo.Builder	Builder for creating a PdfDocument.PageInfo.
PendingIntent	A description of an Intent and target action to perform with it.
PendingIntent.CanceledException	Exception thrown when trying to send through a PendingIntent that has been canceled or is otherwise no longer able to execute the request.
PendingIntent.OnFinished	Callback interface for discovering when a send operation has completed.
PerformanceTestCase	More complex interface performance for test cases.
PerformanceTestCase.Intermediates	Callbacks for PerformanceTestCase.
PeriodicSync	Value type that contains information about a periodic sync.
Permission	Legacy security code; do not use.
Permission	Legacy security code; do not use.
PermissionCollection	Legacy security code; do not use.
PermissionGroupInfo	Information you can retrieve about a particular security permission group known to the system.
PermissionInfo	Information you can retrieve about a particular security permission known to the system.
Permissions	Legacy security code; do not use.
PhantomReference	Implements a phantom reference, which is the weakest of the three types of references.
PhoneNumberFormattingTextWatcher	Watches a TextView and if a phone number is entered will format it.
PhoneNumberUtils	Various utilities for dealing with phone number strings.
PhoneStateListener	A listener class for monitoring changes in specific telephony states on the device, including service state, signal strength, message waiting indicator (voicemail), and others.
Picture	A Picture records drawing calls (via the canvas returned by beginRecording) and can then play them back into Canvas (via draw(Canvas) or drawPicture(Picture)).For most content (e.g.
PictureDrawable	Drawable subclass that wraps a Picture, allowing the picture to be used whereever a Drawable is supported.
Pipe	A pipe contains two channels, forming a unidirectional pipe.
Pipe.SinkChannel	Writable sink channel used to write to a pipe.
Pipe.SourceChannel	Readable source channel used to read from a pipe.
PipedInputStream	Receives information from a communications pipe.
PipedOutputStream	Places information on a communications pipe.
PipedReader	Receives information on a communications pipe.
PipedWriter	Places information on a communications pipe.
PixelFormat
PixelXorXfermode	PixelXorXfermode implements a simple pixel xor (op ^ src ^ dst).
PKCS8EncodedKeySpec	The key specification for an encoded private key in ASN.1 format as defined in the PKCS#8 standard.
PKIXBuilderParameters	The parameter specification for a PKIX CertPathBuilder algorithm used to build certificate chains validated with the PKIX certification path validation.
PKIXCertPathBuilderResult	The result of the PKIX certification path builder, returned by build(CertPathParameters).
PKIXCertPathChecker	The class specifying the interface to extend the certification path validation algorithm by checks to perform on an X509Certificate.
PKIXCertPathValidatorResult	The implementation of the result of the PKIX certification path validation.
PKIXParameters	This class implements the parameters for the PKIX CertPathValidator.
PlainSocketFactory	The default class for creating sockets.
PluginStub	This interface is used to implement plugins in a WebView.
Point	Point holds two integer coordinates
PointF	PointF holds two float coordinates
Policy	Legacy security code; do not use.
Policy.Parameters	Legacy security code; do not use.
PolicyNode	The interface to a valid policy tree node for the PKIX certification path validation algorithm.
PolicyQualifierInfo	This class implements a policy qualifier as defined by the ASN.1 PolicyQualifierInfo structure.
PolicySpi	Represents the Service Provider Interface (SPI) for java.security.Policy class.
PooledConnection	An interface which provides facilities for handling connections to a database which are pooled.
PoolEntryRequest	Encapsulates a request for a BasicPoolEntry.
PopupMenu	Static library support version of the framework’s PopupMenu.
PopupMenu	A PopupMenu displays a Menu in a modal popup window anchored to a View.
PopupMenu.OnDismissListener	Callback interface used to notify the application that the menu has closed.
PopupMenu.OnDismissListener	Callback interface used to notify the application that the menu has closed.
PopupMenu.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
PopupMenu.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
PopupMenuCompat	Helper for accessing features in PopupMenu introduced after API level 4 in a backwards compatible fashion.
PopupWindow	A popup window that can be used to display an arbitrary view.
PopupWindow.OnDismissListener	Listener that is called when this popup window is dismissed.
PorterDuff
PorterDuff.Mode
PorterDuffColorFilter
PorterDuffXfermode
PortUnreachableException	This PortUnreachableException will be thrown if an ICMP_Port_Unreachable message has been received.
PowerManager	This class gives you control of the power state of the device.
PowerManager.WakeLock	A wake lock is a mechanism to indicate that your application needs to have the device stay on.
Prediction
Preference	Represents the basic Preference UI building block displayed by a PreferenceActivity in the form of a ListView.
Preference.BaseSavedState	A base class for managing the instance state of a Preference.
Preference.OnPreferenceChangeListener	Interface definition for a callback to be invoked when the value of this Preference has been changed by the user and is about to be set and/or persisted.
Preference.OnPreferenceClickListener	Interface definition for a callback to be invoked when a Preference is clicked.
PreferenceActivity	This is the base class for an activity to show a hierarchy of preferences to the user.
PreferenceActivity.Header	Description of a single Header item that the user can select.
PreferenceCategory	Used to group Preference objects and provide a disabled title above the group.
PreferenceChangeEvent	This is the event class to indicate that a preference has been added, deleted or updated.
PreferenceChangeListener	This interface is used to handle preferences change events.
PreferenceFragment	Shows a hierarchy of Preference objects as lists.
PreferenceFragment.OnPreferenceStartFragmentCallback	Interface that PreferenceFragment’s containing activity should implement to be able to process preference items that wish to switch to a new fragment.
PreferenceGroup	A container for multiple Preference objects.
PreferenceManager	Used to help create Preference hierarchies from activities or XML.
PreferenceManager.OnActivityDestroyListener	Interface definition for a class that will be called when the container’s activity is destroyed.
PreferenceManager.OnActivityResultListener	Interface definition for a class that will be called when the container’s activity receives an activity result.
PreferenceManager.OnActivityStopListener	Interface definition for a class that will be called when the container’s activity is stopped.
Preferences	An instance of the class Preferences represents one node in a preference tree, which provides a mechanism to store and access configuration data in a hierarchical way.
PreferenceScreen	Represents a top-level Preference that is the root of a Preference hierarchy.
PreferencesFactory	This interface is used by the Preferences class as factory class to create Preferences instances.
PreparedStatement	An interface for a precompiled SQL Statement.
Presentation	Base class for presentations.
PresetReverb	A sound generated within a room travels in many directions.
PresetReverb.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the PresetReverb when a parameter value has changed.
PresetReverb.Settings	The Settings class regroups all preset reverb parameters.
Principal	Principals are objects which have identities.
PrintAttributes	This class represents the attributes of a print job.
PrintAttributes.Builder	Builder for creating PrintAttributes.
PrintAttributes.Margins	This class specifies content margins.
PrintAttributes.MediaSize	This class specifies a supported media size.
PrintAttributes.Resolution	This class specifies a supported resolution in DPI (dots per inch).
PrintDocument	This class represents a printed document from the perspective of a print service.
PrintDocumentAdapter	Base class that provides the content of a document to be printed.
PrintDocumentAdapter.LayoutResultCallback	Base class for implementing a callback for the result of onLayout(PrintAttributes, PrintAttributes, CancellationSignal, LayoutResultCallback, Bundle).
PrintDocumentAdapter.WriteResultCallback	Base class for implementing a callback for the result of onWrite(PageRange[], ParcelFileDescriptor, CancellationSignal, WriteResultCallback).
PrintDocumentInfo	This class encapsulates information about a document for printing purposes.
PrintDocumentInfo.Builder	Builder for creating a PrintDocumentInfo.
PrintedPdfDocument	This class is a helper for creating a PDF file for given print attributes.
Printer	Simple interface for printing text, allowing redirection to various targets.
PrinterCapabilitiesInfo	This class represents the capabilities of a printer.
PrinterCapabilitiesInfo.Builder	Builder for creating of a PrinterCapabilitiesInfo.
PrinterDiscoverySession	This class encapsulates the interaction between a print service and the system during printer discovery.
PrinterId	This class represents the unique id of a printer.
PrinterInfo	This class represents the description of a printer.
PrinterInfo.Builder	Builder for creating of a PrinterInfo.
PrintHelper	Helper for printing bitmaps.
PrintJob	This class represents a print job from the perspective of an application.
PrintJob	This class represents a print job from the perspective of a print service.
PrintJobId	This class represents the id of a print job.
PrintJobInfo	This class represents the description of a print job.
PrintJobInfo.Builder	Builder for creating a PrintJobInfo.
PrintManager	System level service for accessing the printing capabilities of the platform.
PrintService	This is the base class for implementing print services.
PrintStream	Wraps an existing OutputStream and provides convenience methods for writing common data types in a human readable format.
PrintStreamPrinter	Implementation of a Printer that sends its output to a PrintStream.
PrintWriter	Wraps either an existing OutputStream or an existing Writer and provides convenience methods for printing common data types in a human readable format.
PrintWriterPrinter	Implementation of a Printer that sends its output to a PrintWriter.
PriorityBlockingQueue	An unbounded blocking queue that uses the same ordering rules as class PriorityQueue and supplies blocking retrieval operations.
PriorityQueue	A PriorityQueue holds elements on a priority heap, which orders the elements according to their natural order or according to the comparator specified at construction time.
PrivateCredentialPermission	Legacy security code; do not use.
PrivateKey	PrivateKey is the common interface for private keys.
PrivilegedAction	Legacy security code; do not use.
PrivilegedActionException	Legacy security code; do not use.
PrivilegedExceptionAction	Legacy security code; do not use.
Process	Tools for managing OS processes.
Process	Represents an external process.
ProcessBuilder	Creates operating system processes.
ProcessedData	An entity class that wraps the result of a processDrmInfo() transaction between a device and a DRM server.
ProcessingInstruction	The ProcessingInstruction interface represents a “processing instruction”, used in XML as a way to keep processor-specific information in the text of the document.
ProgressBar	Visual indicator of progress in some operation.
ProgressDialog	A dialog showing a progress indicator and an optional text message or view.
Properties	A Properties object is a Hashtable where the keys and values must be Strings.
Property	A property is an abstraction that can be used to represent a mutable value that is held in a host object.
PropertyChangeEvent	An event that indicates that a constraint or a boundary of a property has changed.
PropertyChangeListener	A PropertyChangeListener can subscribe with a event source.
PropertyChangeListenerProxy	The implementation of this listener proxy just delegates the received events to its listener.
PropertyChangeSupport	Manages a list of listeners to be notified when a property changes.
PropertyPermission	Legacy security code; do not use.
PropertyResourceBundle	PropertyResourceBundle loads resources from an InputStream.
PropertyValuesHolder	This class holds information about a property and the values that that property should take on during an animation.
Protectable	A Protectable can be run and can throw a Throwable.
ProtectionDomain	Legacy security code; do not use.
ProtocolException	Signals that either a connection attempt to a socket of the wrong type, the application of an unsupported operation or that a general error in the underlying protocol has occurred.
ProtocolException	Signals that an HTTP protocol violation has occurred.
ProtocolVersion	Represents a protocol version, as specified in RFC 2616.
Provider	Provider is the abstract superclass for all security providers in the Java security infrastructure.
Provider.Service	Service represents a service in the Java Security infrastructure.
ProviderException	ProviderException is a general exception, thrown by security Providers.
ProviderInfo	Holds information about a specific content provider.
ProviderTestCase	This class was deprecated in API level 3. this class extends InstrumentationTestCase but should extend AndroidTestCase. Use ProviderTestCase2, which corrects this problem, instead.
ProviderTestCase2	This test case class provides a framework for testing a single ContentProvider and for testing your app code with an isolated content provider.
Proxy	A convenience class for accessing the user and default proxy settings.
Proxy	Proxy defines methods for creating dynamic proxy classes and instances.
Proxy	This class represents proxy server settings.
Proxy.Type	Enum class for the proxy type.
ProxySelector	Selects the proxy server to use, if any, when connecting to a given URL.
ProxySelectorRoutePlanner	Default implementation of an HttpRoutePlanner.
PSource	The source of the label L as specified in PKCS #1.
PSource.PSpecified	The explicit specification of the parameter P used in the source algorithm.
PSSParameterSpec	The parameter specification for the RSA-PSS Signature scheme.
PublicKey	PublicKey is the common interface for public keys.
PushbackInputStream	Wraps an existing InputStream and adds functionality to “push back” bytes that have been read, so that they can be read again.
PushbackReader	Wraps an existing Reader and adds functionality to “push back” characters that have been read, so that they can be read again.
Q
QName	QName represents a qualified name as defined in the XML specifications: XML Schema Part2: Datatypes specification, Namespaces in XML, Namespaces in XML Errata.
Queue	A collection designed for holding elements prior to processing.
QuickContactBadge	Widget used to show an image with the standard QuickContact badge and on-click behavior.
QuoteSpan
QwertyKeyListener	This is the standard key listener for alphabetic input on qwerty keyboards.