Android WindowManager窗口类型
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ZMS:最后一个子窗口-创建子窗口时，客户端可以指定窗口类型介于1000-1999之间，
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而WindowManagerService在进行窗口叠加时，会动态调整层值。
*/
public static final int LAST_SUB_WINDOW = 1999;
/**
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Start of system-specific window types. These are not normally
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created by applications.
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ZMS:首个系统窗口-系统窗口，系统窗口不需要对应任何Activity，也不需要有父窗口，
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对于应用程序而言，理论上是无法创建系统窗口的，因为所有的应用程序都没有这个权限，
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然而系统进程却可以创建系统窗口。
*/
public static final int FIRST_SYSTEM_WINDOW = 2000;
/**
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Window type: the status bar. There can be only one status bar
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window; it is placed at the top of the screen, and all other
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windows are shifted down so they are below it.
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In multiuser systems shows on all users’ windows.
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ZMS:状态栏窗口，层值2000。
*/
public static final int TYPE_STATUS_BAR = FIRST_SYSTEM_WINDOW;
/**
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Window type: the search bar. There can be only one search bar
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window; it is placed at the top of the screen.
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In multiuser systems shows on all users’ windows.
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ZMS:搜索条窗口，层值2001。
*/
public static final int TYPE_SEARCH_BAR = FIRST_SYSTEM_WINDOW+1;
/**
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Window type: phone. These are non-application windows providing
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user interaction with the phone (in particular incoming calls).
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These windows are normally placed above all applications, but behind
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the status bar.
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In multiuser systems shows on all users’ windows.
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ZMS:来电显示窗口
*/
public static final int TYPE_PHONE = FIRST_SYSTEM_WINDOW+2;
/**
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Window type: system window, such as low power alert. These windows
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are always on top of application windows.
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In multiuser systems shows only on the owning user’s window.
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ZMS:警告对话框
*/
public static final int TYPE_SYSTEM_ALERT = FIRST_SYSTEM_WINDOW+3;
/**
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Window type: keyguard window.
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In multiuser systems shows on all users’ windows.
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@removed
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ZMS:锁屏
*/
public static final int TYPE_KEYGUARD = FIRST_SYSTEM_WINDOW+4;
/**
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Window type: transient notifications.
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In multiuser systems shows only on the owning user’s window.
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ZMS:Toast窗口
*/
public static final int TYPE_TOAST = FIRST_SYSTEM_WINDOW+5;
/**
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Window type: system overlay windows, which need to be displayed
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on top of everything else. These windows must not take input
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focus, or they will interfere with the keyguard.
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In multiuser systems shows only on the owning user’s window.
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ZMS:系统覆盖窗口，显示在所有窗口之上
*/
public static final int TYPE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+6;
/**
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Window type: priority phone UI, which needs to be displayed even if
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the keyguard is active. These windows must not take input
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focus, or they will interfere with the keyguard.
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In multiuser systems shows on all users’ windows.
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ZMS:在屏幕保护下的来电显示窗口
*/
public static final int TYPE_PRIORITY_PHONE = FIRST_SYSTEM_WINDOW+7;
/**
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Window type: panel that slides out from the status bar
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In multiuser systems shows on all users’ windows.
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ZMS:滑动状态栏后出现的窗口
*/
public static final int TYPE_SYSTEM_DIALOG = FIRST_SYSTEM_WINDOW+8;
/**
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Window type: dialogs that the keyguard shows
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In multiuser systems shows on all users’ windows.
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ZMS:锁屏弹出的对话框
*/
public static final int TYPE_KEYGUARD_DIALOG = FIRST_SYSTEM_WINDOW+9;
/**
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Window type: internal system error windows, appear on top of
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everything they can.
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In multiuser systems shows only on the owning user’s window.
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ZMS:系统错误窗口
*/
public static final int TYPE_SYSTEM_ERROR = FIRST_SYSTEM_WINDOW+10;
/**
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Window type: internal input methods windows, which appear above
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the normal UI. Application windows may be resized or panned to keep
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the input focus visible while this window is displayed.
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In multiuser systems shows only on the owning user’s window.
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ZMS:输入法窗口
*/
public static final int TYPE_INPUT_METHOD = FIRST_SYSTEM_WINDOW+11;
/**
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Window type: internal input methods dialog windows, which appear above
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the current input method window.
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In multiuser systems shows only on the owning user’s window.
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ZMS:输入法中备选框对应的窗口
*/
public static final int TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW+12;
/**
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Window type: wallpaper window, placed behind any window that wants
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to sit on top of the wallpaper.
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In multiuser systems shows only on the owning user’s window.
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ZMS:墙纸对应的窗口
*/
public static final int TYPE_WALLPAPER = FIRST_SYSTEM_WINDOW+13;
/**
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Window type: panel that slides out from over the status bar
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In multiuser systems shows on all users’ windows.
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ZMS:滑动状态栏后出现的面板窗口
*/
public static final int TYPE_STATUS_BAR_PANEL = FIRST_SYSTEM_WINDOW+14;
/**
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Window type: secure system overlay windows, which need to be displayed
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on top of everything else. These windows must not take input
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focus, or they will interfere with the keyguard.
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This is exactly like {@link #TYPE_SYSTEM_OVERLAY} except that only the
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system itself is allowed to create these overlays. Applications cannot
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obtain permission to create secure system overlays.
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In multiuser systems shows only on the owning user’s window.
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@hide
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ZMS:安全系统覆盖窗口，显示在所有窗口之上。
*/
public static final int TYPE_SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+15;
/**
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Window type: the drag-and-drop pseudowindow. There is only one
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drag layer (at most), and it is placed on top of all other windows.
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In multiuser systems shows only on the owning user’s window.
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@hide
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ZMS:拖动放开窗口。
*/
public static final int TYPE_DRAG = FIRST_SYSTEM_WINDOW+16;
/**
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Window type: panel that slides out from under the status bar
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:滑动状态栏显示的面板窗口。
*/
public static final int TYPE_STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW+17;
/**
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Window type: (mouse) pointer
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:鼠标窗口。
*/
public static final int TYPE_POINTER = FIRST_SYSTEM_WINDOW+18;
/**
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Window type: Navigation bar (when distinct from status bar)
-
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@hide
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ZMS:导航栏窗口
*/
public static final int TYPE_NAVIGATION_BAR = FIRST_SYSTEM_WINDOW+19;
/**
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Window type: The volume level overlay/dialog shown when the user
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changes the system volume.
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:音量调节窗口
*/
public static final int TYPE_VOLUME_OVERLAY = FIRST_SYSTEM_WINDOW+20;
/**
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Window type: The boot progress dialog, goes on top of everything
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in the world.
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:系统启动进程对话框窗口-在其他内容之上。
*/
public static final int TYPE_BOOT_PROGRESS = FIRST_SYSTEM_WINDOW+21;
/**
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Window type: Fake window to consume touch events when the navigation
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bar is hidden.
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:隐藏导航栏时消化触摸事件窗口-当导航栏隐藏时，用来处理消费触摸事件的模拟窗口。
*/
public static final int TYPE_HIDDEN_NAV_CONSUMER = FIRST_SYSTEM_WINDOW+22;
/**
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Window type: Dreams (screen saver) window, just above keyguard.
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In multiuser systems shows only on the owning user’s window.
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@hide
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ZMS:LDreams屏保窗口，仅在锁屏窗口之上。
*/
public static final int TYPE_DREAM = FIRST_SYSTEM_WINDOW+23;
/**
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Window type: Navigation bar panel (when navigation bar is distinct from status bar)
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:导航栏面板窗口
*/
public static final int TYPE_NAVIGATION_BAR_PANEL = FIRST_SYSTEM_WINDOW+24;
/**
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Window type: Behind the universe of the real windows.
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:全局背景窗口
*/
public static final int TYPE_UNIVERSE_BACKGROUND = FIRST_SYSTEM_WINDOW+25;
/**
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Window type: Display overlay window. Used to simulate secondary display devices.
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In multiuser systems shows on all users’ windows.
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@hide
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ZMS:显示重绘窗口，用来模拟第二屏显示设备。
*/
public static final int TYPE_DISPLAY_OVERLAY = FIRST_SYSTEM_WINDOW+26;
/**
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Window type: Magnification overlay window. Used to highlight the magnified
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portion of a display when accessibility magnification is enabled.
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In multiuser systems shows on all users’ windows.
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@hide