获取安卓系统设置，变量名都在这里了

Settings.System

extends   Settings.NameValueTable

java.lang.Object
↳	android.provider.Settings.NameValueTable
	↳	android.provider.Settings.System

Class Overview

System settings, containing miscellaneous system preferences. This table holds simple name/value pairs. There are convenience functions for accessing individual settings entries.

Summary

Constants
String	ACCELEROMETER_ROTATION	Control whether the accelerometer will be used to change screen orientation.
String	ADB_ENABLED	This constant was deprecated in API level 3. Use ADB_ENABLED instead
String	AIRPLANE_MODE_ON	This constant was deprecated in API level 17. Use AIRPLANE_MODE_ON instead
String	AIRPLANE_MODE_RADIOS	This constant was deprecated in API level 17. Use AIRPLANE_MODE_RADIOS instead
String	ALARM_ALERT	Persistent store for the system-wide default alarm alert.
String	ALWAYS_FINISH_ACTIVITIES	This constant was deprecated in API level 17. Use ALWAYS_FINISH_ACTIVITIES instead
String	ANDROID_ID	This constant was deprecated in API level 3. Use ANDROID_ID instead
String	ANIMATOR_DURATION_SCALE	This constant was deprecated in API level 17. Use ANIMATOR_DURATION_SCALE instead
String	AUTO_TIME	This constant was deprecated in API level 17. Use AUTO_TIME instead
String	AUTO_TIME_ZONE	This constant was deprecated in API level 17. Use AUTO_TIME_ZONE instead
String	BLUETOOTH_DISCOVERABILITY	Determines whether remote devices may discover and/or connect to this device.
String	BLUETOOTH_DISCOVERABILITY_TIMEOUT	Bluetooth discoverability timeout.
String	BLUETOOTH_ON	This constant was deprecated in API level 3. Use BLUETOOTH_ON instead
String	DATA_ROAMING	This constant was deprecated in API level 3. Use DATA_ROAMING instead
String	DATE_FORMAT	Date format string mm/dd/yyyy dd/mm/yyyy yyyy/mm/dd
String	DEBUG_APP	This constant was deprecated in API level 17. Use DEBUG_APP instead
String	DEVICE_PROVISIONED	This constant was deprecated in API level 3. Use DEVICE_PROVISIONED instead
String	DIM_SCREEN	This constant was deprecated in API level 17. This setting is no longer used.
String	DTMF_TONE_TYPE_WHEN_DIALING	CDMA only settings DTMF tone type played by the dialer when dialing.
String	DTMF_TONE_WHEN_DIALING	Whether the audible DTMF tones are played by the dialer when dialing.
String	END_BUTTON_BEHAVIOR	What happens when the user presses the end call button if they're not on a call.
String	FONT_SCALE	Scaling factor for fonts, float.
String	HAPTIC_FEEDBACK_ENABLED	Whether the haptic feedback (long presses, ...) are enabled.
String	HTTP_PROXY	This constant was deprecated in API level 3. Use HTTP_PROXY instead
String	INSTALL_NON_MARKET_APPS	This constant was deprecated in API level 3. Use INSTALL_NON_MARKET_APPS instead
String	LOCATION_PROVIDERS_ALLOWED	This constant was deprecated in API level 3. Use LOCATION_PROVIDERS_ALLOWED instead
String	LOCK_PATTERN_ENABLED	This constant was deprecated in API level 8. Use LOCK_PATTERN_ENABLED instead
String	LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED	This constant was deprecated in API level 8. Use LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED instead
String	LOCK_PATTERN_VISIBLE	This constant was deprecated in API level 8. Use LOCK_PATTERN_VISIBLE instead
String	LOGGING_ID	This constant was deprecated in API level 3. Use LOGGING_ID instead
String	MODE_RINGER	This constant was deprecated in API level 17. Use MODE_RINGER instead
String	MODE_RINGER_STREAMS_AFFECTED	Determines which streams are affected by ringer mode changes.
String	MUTE_STREAMS_AFFECTED	Determines which streams are affected by mute.
String	NETWORK_PREFERENCE	This constant was deprecated in API level 3. Use NETWORK_PREFERENCE instead
String	NEXT_ALARM_FORMATTED	This constant was deprecated in API level 21. Use getNextAlarmClock().
String	NOTIFICATION_SOUND	Persistent store for the system-wide default notification sound.
String	PARENTAL_CONTROL_ENABLED	This constant was deprecated in API level 3. Use PARENTAL_CONTROL_ENABLED instead
String	PARENTAL_CONTROL_LAST_UPDATE	This constant was deprecated in API level 3. Use PARENTAL_CONTROL_LAST_UPDATE instead
String	PARENTAL_CONTROL_REDIRECT_URL	This constant was deprecated in API level 3. Use PARENTAL_CONTROL_REDIRECT_URL instead
String	RADIO_BLUETOOTH	This constant was deprecated in API level 17. Use RADIO_BLUETOOTH instead
String	RADIO_CELL	This constant was deprecated in API level 17. Use RADIO_CELL instead
String	RADIO_NFC	This constant was deprecated in API level 17. Use RADIO_NFC instead
String	RADIO_WIFI	This constant was deprecated in API level 17. Use RADIO_WIFI instead
String	RINGTONE	Persistent store for the system-wide default ringtone URI.
String	SCREEN_BRIGHTNESS	The screen backlight brightness between 0 and 255.
String	SCREEN_BRIGHTNESS_MODE	Control whether to enable automatic brightness mode.
int	SCREEN_BRIGHTNESS_MODE_AUTOMATIC	SCREEN_BRIGHTNESS_MODE value for automatic mode.
int	SCREEN_BRIGHTNESS_MODE_MANUAL	SCREEN_BRIGHTNESS_MODE value for manual mode.
String	SCREEN_OFF_TIMEOUT	The amount of time in milliseconds before the device goes to sleep or begins to dream after a period of inactivity.
String	SETTINGS_CLASSNAME	This constant was deprecated in API level 3. Use SETTINGS_CLASSNAME instead
String	SETUP_WIZARD_HAS_RUN	Whether the setup wizard has been run before (on first boot), or if it still needs to be run.
String	SHOW_GTALK_SERVICE_STATUS
String	SHOW_PROCESSES	This constant was deprecated in API level 17. Use SHOW_PROCESSES instead
String	SHOW_WEB_SUGGESTIONS	This constant was deprecated in API level 11. Each application that shows web suggestions should have its own setting for this.
String	SOUND_EFFECTS_ENABLED	Whether the sounds effects (key clicks, lid open ...) are enabled.
String	STAY_ON_WHILE_PLUGGED_IN	This constant was deprecated in API level 17. Use STAY_ON_WHILE_PLUGGED_IN instead
String	SYS_PROP_SETTING_VERSION
String	TEXT_AUTO_CAPS	Setting to enable Auto Caps in text editors.
String	TEXT_AUTO_PUNCTUATE	Setting to enable Auto Punctuate in text editors.
String	TEXT_AUTO_REPLACE	Setting to enable Auto Replace (AutoText) in text editors.
String	TEXT_SHOW_PASSWORD	Setting to showing password characters in text editors.
String	TIME_12_24	Display times as 12 or 24 hours 12 24
String	TRANSITION_ANIMATION_SCALE	This constant was deprecated in API level 17. Use TRANSITION_ANIMATION_SCALE instead
String	USB_MASS_STORAGE_ENABLED	This constant was deprecated in API level 3. Use USB_MASS_STORAGE_ENABLED instead
String	USER_ROTATION	Default screen rotation when no other policy applies.
String	USE_GOOGLE_MAIL	This constant was deprecated in API level 3. Use USE_GOOGLE_MAIL instead
String	VIBRATE_ON	Whether vibrate is on for different events.
String	VIBRATE_WHEN_RINGING	Whether the phone vibrates when it is ringing due to an incoming call.
String	WAIT_FOR_DEBUGGER	This constant was deprecated in API level 17. Use WAIT_FOR_DEBUGGER instead
String	WALLPAPER_ACTIVITY	This constant was deprecated in API level 17. Use WallpaperManager instead.
String	WIFI_MAX_DHCP_RETRY_COUNT	This constant was deprecated in API level 3. Use WIFI_MAX_DHCP_RETRY_COUNT instead
String	WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS	This constant was deprecated in API level 3. Use WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS instead
String	WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON	This constant was deprecated in API level 3. Use WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON instead
String	WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY	This constant was deprecated in API level 3. Use WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY instead
String	WIFI_NUM_OPEN_NETWORKS_KEPT	This constant was deprecated in API level 3. Use WIFI_NUM_OPEN_NETWORKS_KEPT instead
String	WIFI_ON	This constant was deprecated in API level 3. Use WIFI_ON instead
String	WIFI_SLEEP_POLICY	This constant was deprecated in API level 17. Use WIFI_SLEEP_POLICY instead
int	WIFI_SLEEP_POLICY_DEFAULT	This constant was deprecated in API level 17. Use WIFI_SLEEP_POLICY_DEFAULT instead
int	WIFI_SLEEP_POLICY_NEVER	This constant was deprecated in API level 17. Use WIFI_SLEEP_POLICY_NEVER instead
int	WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED	This constant was deprecated in API level 17. Use WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED instead
String	WIFI_STATIC_DNS1	This constant was deprecated in API level 17. Use WifiManager instead
String	WIFI_STATIC_DNS2	This constant was deprecated in API level 17. Use WifiManager instead
String	WIFI_STATIC_GATEWAY	This constant was deprecated in API level 17. Use WifiManager instead
String	WIFI_STATIC_IP	This constant was deprecated in API level 17. Use WifiManager instead
String	WIFI_STATIC_NETMASK	This constant was deprecated in API level 17. Use WifiManager instead
String	WIFI_USE_STATIC_IP	This constant was deprecated in API level 17. Use WifiManager instead
String	WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE instead
String	WIFI_WATCHDOG_AP_COUNT	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_AP_COUNT instead
String	WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS instead
String	WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED instead
String	WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS instead
String	WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT instead
String	WIFI_WATCHDOG_MAX_AP_CHECKS	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_MAX_AP_CHECKS instead
String	WIFI_WATCHDOG_ON	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_ON instead
String	WIFI_WATCHDOG_PING_COUNT	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_PING_COUNT instead
String	WIFI_WATCHDOG_PING_DELAY_MS	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_PING_DELAY_MS instead
String	WIFI_WATCHDOG_PING_TIMEOUT_MS	This constant was deprecated in API level 3. Use WIFI_WATCHDOG_PING_TIMEOUT_MS instead
String	WINDOW_ANIMATION_SCALE	This constant was deprecated in API level 17. Use WINDOW_ANIMATION_SCALE instead