List of meanings of default values in Android system

Transferred from: http://blog.csdn.net/yabg_zhi_xiang/article/details/51727844

Set the default value in the system in Settingsprovider, we can frameworks\base\packages\settingsprovider\res\values\ Default.xml file to see some of the common default values, this time I will explain in detail the meaning of the default. Of course, this is not all the default values, and all defaults are worth defining to view in Frameworks\base\core\java\android\provider\settings.java.

name in Default.xml	type	meaning
Def_dim_screen	bool	Whether to turn off the screen automatically, by default True
Def_screen_off_timeout	Integer	Auto off screen time
def_airplane_mode_on	bool	Whether to turn on airplane mode, by default True
Def_airplane_mode_radios	String	List of features disabled in airplane mode, separated by commas
Airplane_mode_toggleable_radios	String	List of features that can be manually opened in the disabled features list in airplane mode, separated by commas
Def_auto_time	bool	Auto-fit time, default true
Def_auto_time_zone	bool	Adaptive time zone, default True
Def_accelerometer_rotation	bool	Whether to automatically turn the screen
Def_screen_brightness	Integer	Screen brightness value, range 0-255
Def_screen_brightness_automatic_mode	bool	Whether automatic brightness adjustment
Def_window_animation_scale	Fraction	The percent value of the regular window animation, which disables window animation for 0 o'clock
Def_window_transition_scale	Fraction	Activity over-window animation percent value, 0 o'clock disable window animation
Def_haptic_feedback	bool	Whether to turn on touch feedback
def_bluetooth_on	bool	Whether to turn on Bluetooth
def_wifi_display_on	bool	Whether to turn on WiFi display
Def_install_non_market_apps	bool	Whether to allow applications with unknown sources to be installed
Def_package_verifier_enable	bool	Whether to send a package validation message before installing the app
Def_location_providers_allowed	String	List of apps that allow location services, separated by commas
Assisted_gps_enabled	bool	Whether to turn on GPS positioning
Def_network_preference	Integer	Network Default selection
Def_netstats_enabled	bool	Whether data traffic is turned on by default
Def_usb_mass_storage_enabled	bool	Whether to use USB mass storage
def_wifi_on	bool	Whether to turn on WiFi
Def_wifi_sleep_policy	Integer	WiFi hibernation policy, 2 means never hibernate
def_networks_available_notification_on	bool	Whether the user notifies when the network is turned on
Def_backup_enabled	bool	Whether to enable set up backup
Def_notification_pulse	bool	The LED notification light flashes repeatedly when there is a message
Def_mount_play_notification_snd	bool	Whether to play a notification tone when there is a Mountservice event
Def_mount_ums_autostart	bool	Whether the UMS is turned on automatically when the UMS host is monitored
Def_mount_ums_prompt	bool	Display in the notification bar when the UMS host is monitored
Def_mount_ums_notify_enabled	bool	Whether to prompt in the notification bar when UMS is enabled
Def_power_sounds_enabled	Integer	Whether to play low battery sound
Def_low_battery_sound	String	URI for low battery sound file
Def_dock_sounds_enabled	Integer	Whether the sound plays when the cradle is inserted
Def_desk_dock_sound	String	The URI of the audio file when inserting the home base
Def_desk_undock_sound	String	The audio file URI when unplugging the home base
Def_car_dock_sound	String	Audio file URI when inserting a car base
Def_car_undock_sound	String	The URI of the audio file when unplugging the car base
Def_lockscreen_sounds_enabled	Integer	Whether to enable the lock screen sound
Def_lock_sound	String	The URI of the lock screen audio file
Def_unlock_sound	String	Unlock the URI of the audio file
Def_wireless_charging_started_sound	String	Start the URI of the wireless charging audio file
Def_lockscreen_disabled	bool	Whether to disable the lock screen
def_device_provisioned	bool	Whether the device has been provided
Def_notifications_use_ring_volume	bool	Whether to use the ringtone as the notification sound
Def_vibrate_in_silent	bool	Does silent mode allow vibration feedback
Def_accessibility_script_injection	bool	Whether JavaScript injection is enabled to enhance reading
Def_accessibility_speak_password	bool	Whether to allow read-out passwords when in accessible mode
Def_accessibility_screen_reader_url	String	WebView The URL of the JavaScript used to display basic reading
Def_touch_exploration_enabled	bool	Whether touch detection is enabled
Def_accessibility_display_magnification_scale	Fraction	Set the percentage of magnification to display
Def_accessibility_display_magnification_enabled	bool	Enable to set magnification on-screen display scale
Def_accessibility_display_magnification_auto_update	bool	Allow screen magnification to be automatically updated
Def_user_rotation	Integer	Screen rotation policy, rotation enabled by default
Def_download_manager_max_bytes_over_mobile	Integer	Maximum speed, in bytes, at download time
Def_download_manager_recommended_max_bytes_over_mobile	Integer	Maximum recommended speed, in bytes, for download
Def_long_press_timeout_millis	Integer	Duration of the press failure, in milliseconds
Def_pointer_speed	Integer	Pointer speed setting, range 7 to 7
Def_dtmf_tones_enabled	bool	Whether the dialer enables DTMF tones when dialing
Def_sound_effects_enabled	bool	Whether to enable audio feedback such as touch screen unlock
Def_stay_on_while_plugged_in	bool	Whether to stay awake when charging is plugged in
Def_max_dhcp_retries	Integer	Maximum number of re-connection
Def_user_setup_complete	bool	Whether the current user has been set up through the Setup Wizard
Def_time_12_24	String	Time-based selection (12 and 242 options)

List of meanings of default values in Android system