在定制化开发中,有些需求是要给个默认状态的,例如应用安装的允许安装未知来源,默认开启蓝牙,开启wifi,休眠时间,等等各种配置.
在系统framework/base/packages/SettingsProvider/res/values/ 目录下有个defaults.xml文件,里面就包含了大部分系统自带功能属性的配置,

<resources><!-- 是否让屏幕亮度渐渐变暗 --><bool name="def_dim_screen">true</bool><!-- 无操作多少秒后关闭屏幕 --><integer name="def_screen_off_timeout">60000</integer><!-- 无操作多少秒后休屏 --><integer name="def_sleep_timeout">-1</integer><!-- 飞行模式是否开启 --><bool name="def_airplane_mode_on">false</bool><!-- 剧场模式是否开启 --><bool name="def_theater_mode_on">false</bool><!-- Comma-separated list of bluetooth, wifi, and cell. --><!-- 飞行模式下要打开的选项 --><string name="def_airplane_mode_radios" translatable="false">cell,bluetooth,wifi,nfc,wimax</string><!-- 飞行模式下用户可以手动开启的开关列表 --><string name="airplane_mode_toggleable_radios" translatable="false">bluetooth,wifi,nfc</string><string name="def_bluetooth_disabled_profiles" translatable="false">0</string><!-- 自动更新时间 --><bool name="def_auto_time">true</bool><!-- 使用24小时时间 --><bool name="def_auto_time_zone">true</bool><!-- 自动旋转是否开启 --><bool name="def_accelerometer_rotation">false</bool><!-- Default screen brightness, from 0 to 255.  102 is 40%. --><integer name="def_screen_brightness">102</integer><!-- 屏幕亮度自适应开关 --><bool name="def_screen_brightness_automatic_mode">false</bool><!-- 窗口动画的百分比值,0为禁止窗口动画 --><fraction name="def_window_animation_scale">100%</fraction><!-- 过度动画的百分比值,0为禁止过度动画 --><fraction name="def_window_transition_scale">100%</fraction><!-- 触动反馈是否开启 --><bool name="def_haptic_feedback">true</bool><!-- 是否开启蓝牙 --><bool name="def_bluetooth_on">true</bool><!-- 是否开启wifi的显示 --><bool name="def_wifi_display_on">false</bool><!-- 是否允许安装非应用市场应用 --><bool name="def_install_non_market_apps">false</bool><!-- 0 == off, 3 == on --><integer name="def_location_mode">3</integer><!-- GPS定位是否开启 --><bool name="assisted_gps_enabled">true</bool><!-- 数据流量是否开启 --><bool name="def_netstats_enabled">true</bool><!-- 是否开启USB大容量存储 --><bool name="def_usb_mass_storage_enabled">true</bool><!-- wifi开关 --><bool name="def_wifi_on">false</bool><!-- 0 == never, 1 == only when plugged in, 2 == always --><integer name="def_wifi_sleep_policy">2</integer><bool name="def_wifi_wakeup_enabled">true</bool><!-- 用户使用网络时是否通知 --><bool name="def_networks_available_notification_on">true</bool><!-- 备份开关 --><bool name="def_backup_enabled">false</bool><string name="def_backup_transport" translatable="false">com.android.localtransport/.LocalTransport</string><!-- Default value for whether or not to pulse the notification LED when there is apending notification --><bool name="def_notification_pulse">true</bool><bool name="def_mount_play_notification_snd">true</bool><bool name="def_mount_ums_autostart">false</bool><bool name="def_mount_ums_prompt">true</bool><bool name="def_mount_ums_notify_enabled">true</bool><!-- user interface sound effects --><integer name="def_power_sounds_enabled">1</integer><string name="def_low_battery_sound" translatable="false">/product/media/audio/ui/LowBattery.ogg</string><integer name="def_dock_sounds_enabled">0</integer><integer name="def_dock_sounds_enabled_when_accessibility">0</integer><string name="def_desk_dock_sound" translatable="false">/product/media/audio/ui/Dock.ogg</string><string name="def_desk_undock_sound" translatable="false">/product/media/audio/ui/Undock.ogg</string><string name="def_car_dock_sound" translatable="false">/product/media/audio/ui/Dock.ogg</string><string name="def_car_undock_sound" translatable="false">/product/media/audio/ui/Undock.ogg</string><integer name="def_lockscreen_sounds_enabled">1</integer><!-- 锁屏音效文件 --><string name="def_lock_sound" translatable="false">/product/media/audio/ui/Lock.ogg</string><!-- 解锁音效文件 --><string name="def_unlock_sound" translatable="false">/product/media/audio/ui/Unlock.ogg</string><string name="def_trusted_sound" translatable="false">/product/media/audio/ui/Trusted.ogg</string><string name="def_wireless_charging_started_sound" translatable="false">/product/media/audio/ui/WirelessChargingStarted.ogg</string><string name="def_charging_started_sound" translatable="false">/product/media/audio/ui/ChargingStarted.ogg</string><!-- sound trigger detection service default values --><integer name="def_max_sound_trigger_detection_service_ops_per_day" translatable="false">1000</integer><integer name="def_sound_trigger_detection_service_op_timeout" translatable="false">15000</integer><!-- 是否禁用锁屏 --><bool name="def_lockscreen_disabled">false</bool><bool name="def_device_provisioned">false</bool><integer name="def_dock_audio_media_enabled">1</integer><!-- Notifications use ringer volume --><bool name="def_notifications_use_ring_volume">true</bool><!-- Default for Settings.System.VIBRATE_IN_SILENT --><bool name="def_vibrate_in_silent">true</bool><!-- Default for Settings.Secure.SYNC_PARENT_SOUNDS --><bool name="def_sync_parent_sounds">true</bool><!-- Default for Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD --><bool name="def_accessibility_speak_password">true</bool><!-- Default for Settings.Secure.TOUCH_EXPLORATION_ENABLED --><bool name="def_touch_exploration_enabled">false</bool><!-- Default value for Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE --><fraction name="def_accessibility_display_magnification_scale">200%</fraction><!-- Default value for Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED --><bool name="def_accessibility_display_magnification_enabled">false</bool><!-- Default value for Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE --><bool name="def_accessibility_display_magnification_auto_update">true</bool><!-- Default for Settings.System.USER_ROTATION --><integer name="def_user_rotation">0</integer><!-- Default for Settings.Secure.DOWNLOAD_MAX_BYTES_OVER_MOBILE. <=0 if no limit --><integer name="def_download_manager_max_bytes_over_mobile">-1</integer><!-- Default for Settings.Secure.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE. <=0 if no limit --><integer name="def_download_manager_recommended_max_bytes_over_mobile">-1</integer><!-- Default for Settings.Secure.LONG_PRESS_TIMEOUT_MILLIS --><integer name="def_long_press_timeout_millis">400</integer><!-- Default for Settings.Secure.MULTI_PRESS_TIMEOUT --><integer name="def_multi_press_timeout_millis">300</integer><!-- Default for Settings.Secure.SHOW_IME_WITH_HARD_KEYBOARD --><bool name="def_show_ime_with_hard_keyboard">false</bool><!-- Default for Settings.System.POINTER_SPEED --><integer name="def_pointer_speed">0</integer><!-- Default for DTMF tones enabled --><bool name="def_dtmf_tones_enabled">true</bool><!-- Default for UI touch sounds enabled --><bool name="def_sound_effects_enabled">true</bool><!-- Development settings --><bool name="def_stay_on_while_plugged_in">false</bool><!-- Number of retries for connecting to DHCP.Value here is the same as WifiStateMachine.DEFAULT_MAX_DHCP_RETRIES --><integer name="def_max_dhcp_retries">9</integer><!-- Default for Settings.Secure.USER_SETUP_COMPLETE --><bool name="def_user_setup_complete">false</bool><!-- Default for Settings.Global.LOW_BATTERY_SOUND_TIMEOUT.0 means no timeout; battery sounds will always play>0 is milliseconds of screen-off time after which battery sounds will not play --><integer name="def_low_battery_sound_timeout">0</integer><!-- Initial value for the Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS setting,which is a comma separated list of packages that no longer need confirmationfor immersive mode.Override to disable immersive mode confirmation for certain packages. --><string name="def_immersive_mode_confirmations" translatable="false"></string><!-- Default for Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE --><integer name="def_wifi_scan_always_available">0</integer><!-- Default for Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, 1==on --><!-- 锁屏界面是否显示通知 --><integer name="def_lock_screen_show_notifications">1</integer><!-- Default for Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS --><!-- 锁屏界面是否一直显示通知 --><bool name="def_lock_screen_allow_private_notifications">true</bool><!-- Default for Settings.Global.HEADS_UP_NOTIFICATIONS_ENABLED, 1==on --><integer name="def_heads_up_enabled">1</integer><!-- Default for Settings.Global.DEVICE_NAME $1=MANUFACTURER $2=MODEL--><string name="def_device_name">%1$s %2$s</string><!-- Default for Settings.Global.DEVICE_NAME $1=MODEL--><string name="def_device_name_simple">%1$s</string><!-- Default for Settings.Secure.WAKE_GESTURE_ENABLED --><bool name="def_wake_gesture_enabled">true</bool><!-- Default state of tap to wake --><bool name="def_double_tap_to_wake">true</bool><!-- Default for Settings.Secure.NFC_PAYMENT_DEFAULT_COMPONENT --><string name="def_nfc_payment_component"></string><!-- Default setting for ability to add users from the lock screen --><bool name="def_add_users_from_lockscreen">false</bool><!--  default setting for Settings.System.END_BUTTON_BEHAVIOR : END_BUTTON_BEHAVIOR_SLEEP --><integer name="def_end_button_behavior">0x2</integer><!-- default setting for Settings.Global.DEFAULT_RESTRICT_BACKGROUND_DATA --><bool name="def_restrict_background_data">false</bool><!-- Default for Settings.Secure.BACKUP_MANAGER_CONSTANTS --><string name="def_backup_manager_constants"></string><!-- Default setting for Settings.Global.MOBILE_DATA_ALWAYS_ON --><bool name="def_mobile_data_always_on">true</bool><!-- Default for Settings.Secure.BACKUP_LOCAL_TRANSPORT_PARAMETERS --><string name="def_backup_local_transport_parameters"></string><!-- Default for Settings.Global.ZEN_DURATIONIf 0, turning on dnd manually will last indefinitely.Else if non-negative, turning on dnd manually will last for this many minutes.Else (if negative), turning on dnd manually will surface a dialog that promptsuser to specify a duration.--><integer name="def_zen_duration">0</integer><!-- Default for Settings.Global.BACKUP_AGENT_TIMEOUT_PARAMETERS --><string name="def_backup_agent_timeout_parameters"></string><!-- Default for Settings.System.VIBRATE_WHEN_RINGING --><bool name="def_vibrate_when_ringing">false</bool><!-- Default for Settings.Global.APPLY_RAMPING_RINGER --><bool name="def_apply_ramping_ringer">false</bool><!-- Default for Settings.Secure.CHARGING_VIBRATION_ENABLED --><bool name="def_charging_vibration_enabled">true</bool><!-- Default for Settings.Secure.CHARGING_SOUNDS_ENABLED --><bool name="def_charging_sounds_enabled">true</bool><!-- Default for Settings.Secure.NOTIFICATION_BUBBLES --><bool name="def_notification_bubbles">true</bool><!-- Default for Settings.Secure.AWARE_ENABLED --><bool name="def_aware_enabled">false</bool><!-- Default for Settings.Secure.SKIP_GESTURE --><bool name="def_skip_gesture">false</bool><!-- Default for Settings.Secure.SILENCE_GESTURE --><bool name="def_silence_gesture">false</bool><!-- Default for Settings.Secure.AWARE_LOCK_ENABLED --><bool name="def_aware_lock_enabled">false</bool><!-- Default for setting for Settings.Global.HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED --><bool name="def_hdmiControlAutoDeviceOff">true</bool><!-- Default for Settings.Secure.SWIPE_BOTTOM_TO_NOTIFICATION_ENABLED --><bool name="def_swipe_bottom_to_notification_enabled">false</bool><!-- Default for Settings.Secure.ONE_HANDED_MODE_ENABLED --><bool name="def_one_handed_mode_enabled">false</bool><!-- Default for Settings.Secure.ACCESSIBILITY_MAGNIFICATION_CAPABILITY --><integer name="def_accessibility_magnification_capabilities">3</integer><!-- Default for Settings.Global.DEVELOPMENT_ENABLE_NON_RESIZABLE_MULTI_WINDOW --><bool name="def_enable_non_resizable_multi_window">false</bool><!-- Default for Settings.Secure.ACCESSIBILITY_BUTTON_MODE --><integer name="def_accessibility_button_mode">1</integer><!-- Default for Settings.Secure.ONE_HANDED_MODE_ACTIVATED --><bool name="def_one_handed_mode_activated">false</bool><bool name="def_dim_screen">true</bool>自动关屏        开<integer name="def_screen_off_timeout">30000</integer> Android睡眠时间为1分钟<integer name="def_sleep_timeout">-1</integer> //表示休眠时间，默认如果没有修改的是6000，即6000ms的意思，6s进行休眠，在这里将其改为-1就是让其永远不休眠<bool name="def_airplane_mode_on">false</bool> 飞行模式        关<bool name="def_theater_mode_on">false</bool> //电影院模式 关<!-- Comma-separated list of bluetooth, wifi, andcell. --><string name="def_airplane_mode_radios" translatable="false">cell,bluetooth,wifi,nfc,wimax</string>  //在飞行模式下禁用的功能列表，用逗号分开<string name="airplane_mode_toggleable_radios" translatable="false">bluetooth,wifi,nfc</string> //在飞行模式下禁用的功能列表中能手动开启的功能列表，用逗号分开<string name="def_bluetooth_disabled_profiles" translatable="false">0</string><bool name="def_auto_time">true</bool> 自动适应时间   开<bool name="def_auto_time_zone">true</bool>  //使用24小时格式 开<bool name="def_accelerometer_rotation">false</bool> //自动旋转 关<!-- Default screen brightness, from 0 to 255.  102 is 40%. --><integername="def_screen_brightness">255</integer> //默认屏幕亮度<bool name="def_screen_brightness_automatic_mode">false</bool> //屏幕亮度自适应 关<fraction name="def_window_animation_scale">100%</fraction> //常规窗口动画的百分比值，为0时禁止窗口动画<fraction name="def_window_transition_scale">100%</fraction> //activity过度窗口动画的百分比值，为0时禁止窗口动画<bool name="def_haptic_feedback">false</bool> //触动反馈 关<bool name="def_bluetooth_on">false</bool> //蓝牙 关<bool name="def_wifi_display_on">false</bool> //Wifi是否开启显示 关<bool name="def_install_non_market_apps">false</bool> //安装非市场APK 开<bool name="def_package_verifier_enable">true</bool>  //验证应用 开<!-- Comma-separated list of location providers.  Network location is off bydefault because it requiresuser opt-in via Setup Wizard orSettings.--><string name="def_location_providers_allowed" translatable="false">gps</string> //位置信息访问权限 关<bool name="assisted_gps_enabled">true</bool>  //GPS定位 开<bool name="def_netstats_enabled">true</bool>  //默认是否开启数据流量 开<bool name="def_usb_mass_storage_enabled">true</bool>  //是否使用USB大容量存储 开<bool name="def_wifi_on">false</bool>  //wifi 关<!-- 0 == never, 1 == only when plugged in, 2 ==always --><integername="def_wifi_sleep_policy">2</integer> //wifi休眠策略，2-永不修改<bool name="def_networks_available_notification_on">true</bool>
//当用户使用网络时是否通知 是<bool name="def_backup_enabled">false</bool> //是否启动设备备份 否<string name="def_backup_transport" translatable="false">android/com.android.internal.backup.LocalTransport</string><!-- Default value for whether or not to pulse thenotification LED when there is apending notification --><bool name="def_notification_pulse">true</bool> //当有通知时LED灯是否一直闪烁<bool name="def_mount_play_notification_snd">true</bool> //当有MountService事件时是否播放通知音<bool name="def_mount_ums_autostart">false</bool> //ums自动重启 关<bool name="def_mount_ums_prompt">true</bool> //ums启用时是否在通知栏提示<bool name="def_mount_ums_notify_enabled">true</bool> //ums主机监控时显示在通知栏<!-- user interface sound effects --><integername="def_power_sounds_enabled">1</integer> //是否播放低电量声音 1--是<string name="def_low_battery_sound" translatable="false">/system/media/audio/ui/LowBattery.ogg</string> //低电量声音文件<integer name="def_dock_sounds_enabled">0</integer> //插上充电座是否播放声音 0-否<string name="def_desk_dock_sound" translatable="false">/system/media/audio/ui/Dock.ogg</string> //插入家用底座时的音频文件的URI<string name="def_desk_undock_sound" translatable="false">/system/media/audio/ui/Undock.ogg</string> //拔出家用底座时的音频文件的URI<string name="def_car_dock_sound" translatable="false">/system/media/audio/ui/Dock.ogg</string> //插入车载底座时音频文件的URI<string name="def_car_undock_sound" translatable="false">/system/media/audio/ui/Undock.ogg</string> >//拔出车载底座时音频文件的URI<integer name="def_lockscreen_sounds_enabled">0</integer> //锁屏是否播放声音 0--否<string name="def_lock_sound" translatable="false">/system/media/audio/ui/Lock.ogg</string> //锁屏声音文件<string name="def_unlock_sound" translatable="false">/system/media/audio/ui/Unlock.ogg</string> //解锁声音文件<string name="def_trusted_sound" translatable="false">/system/media/audio/ui/Trusted.ogg</string><string name="def_wireless_charging_started_sound"translatable="false">/system/media/audio/ui/WirelessChargingStarted.ogg</string> //开始无线充电音频文件的URI<bool name="def_lockscreen_disabled">false</bool>  //是否禁用锁屏<bool name="def_device_provisioned">false</bool> //设备是否已提供<integer name="def_dock_audio_media_enabled">1</integer><!-- Notifications use ringer volume --><bool name="def_notifications_use_ring_volume">true</bool>是否将铃声作为通知铃声使用<!-- Default for Settings.System.VIBRATE_IN_SILENT--><bool name="def_vibrate_in_silent">true</bool> //静音模式是否震动 是<!-- Default forSettings.Secure.ACCESSIBILITY_SCRIPT_INJECTION --><bool name="def_accessibility_script_injection">false</bool> //是否启用javascript注入来增强阅读<!-- Default forSettings.Secure.ACCESSIBILITY_SPEAK_PASSWORD --><bool name="def_accessibility_speak_password">false</bool> // 在可访问模式时是否允许读出密码<!-- Default forSettings.Secure.ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS --><string name="def_accessibility_web_content_key_bindings" translatable="false"><!-- DPAD/Trackball UP - traverse previous on currentaxis and send an event. -->0x13=0x01000100;<!-- DPAD/Trackball DOWN - traverse next on currentaxis and send an event. -->0x14=0x01010100;<!-- DPAD/Trackball LEFT - traverse previous on thecharacter navigation axis and send event. -->0x15=0x02000001;<!-- DPAD/Trackball RIGHT - traverse next on thecharacter navigation axis end send event. -->0x16=0x02010001;<!-- Alt+DPAD/Trackball UP - go to the top of thedocument. -->0x200000013=0x02000601;<!-- Alt+DPAD/Trackball DOWN - go to the bottom of thedocument. -->0x200000014=0x02010601;<!-- Alt+DPAD/Trackball LEFT - transition from an axisto another and sends an event.--><!-- Axis transitions: 2-> 1; -->0x200000015=0x03020101;<!-- Alt+DPAD/Trackball RIGHT - transition from anaxis to another and sends an event. --><!-- Axistransitions:  1 -> 2; -->0x200000016=0x03010201;<!-- Alt+g - go to the previous heading and send anevent. -->0x200000023=0x02000301;<!-- Alt+h - go to the next heading and send an event.-->0x200000024=0x02010301;<!-- Alt+COMMA - transition to sentence navigationaxis and send an event. --><!-- Axistransitions:  7 -> 2; -->0x200000037=0x03070201;<!-- Alt+PERIOD - transition to default web viewbehavior axis and send an event. --><!-- Axistransitions:  0 -> 7; 1 - > 7; 2-> 7; -->0x200000038=0x03000701:0x03010701:0x03020701;</string><!-- Default forSettings.Secure.ACCESSIBILITY_SCRIPT_INJECTION_URL --><string name="def_accessibility_screen_reader_url" translatable="false">https://ssl.gstatic.com/accessibility/javascript/android/AndroidVox_v1.js</string>//WebView用来展示基本阅读的JavaScript的URL<!-- Default forSettings.Secure.TOUCH_EXPLORATION_ENABLED --><bool name="def_touch_exploration_enabled">false</bool> //是否启用触控探测 否<!-- Default value forSettings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE --><fractionname="def_accessibility_display_magnification_scale">200%</fraction>//设置显示放大的百分比<!-- Default value for Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED--><bool name="def_accessibility_display_magnification_enabled">false</bool>//是否启用可设置放大屏幕显示比例  否<!-- Default value forSettings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE --><bool name="def_accessibility_display_magnification_auto_update">true</bool> //是否允许屏幕放大比例自动更新 是<!-- Default for Settings.System.USER_ROTATION --><integername="def_user_rotation">0</integer> //屏幕旋转策略，默认启用旋转 0--否<!-- Default forSettings.Secure.DOWNLOAD_MAX_BYTES_OVER_MOBILE. <=0 if no limit --><integer name="def_download_manager_max_bytes_over_mobile">-1</integer> //下载时的最大速度，以字节为单位 -1-不限制<!-- Default forSettings.Secure.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE. <=0 if no limit--><integername="def_download_manager_recommended_max_bytes_over_mobile">-1</integer> //下载时推荐的最大速度，以字节为单位    -1-不限制<!-- Default forSettings.Secure.LONG_PRESS_TIMEOUT_MILLIS --><integername="def_long_press_timeout_millis">500</integer>
//设置长按失效时长 500毫秒<!-- Default forSettings.Secure.SHOW_IME_WITH_HARD_KEYBOARD --><bool name="def_show_ime_with_hard_keyboard">false</bool><!-- Default for Settings.System.POINTER_SPEED --><integername="def_pointer_speed">0</integer><!-- Default for DTMF tones enabled --><bool name="def_dtmf_tones_enabled">true</bool>  //在拨号时拨号器是否启用DTMF音调 是<!-- Default for UI touch sounds enabled --><bool name="def_sound_effects_enabled">false</bool> //否启用触屏解锁等音效反馈<!-- Development settings --><bool name="def_stay_on_while_plugged_in">false</bool>  //当充电时，是否保持唤醒状态 否<!-- Number of retries for connecting to DHCP.Value here is the same asWifiStateMachine.DEFAULT_MAX_DHCP_RETRIES --><integername="def_max_dhcp_retries">9</integer> //WIFI最大重连次数 <!-- Default for Settings.Secure.USER_SETUP_COMPLETE--><bool name="def_user_setup_complete">false</bool>  当前用户是否已经通过安装向导设置 否<!-- Default for Settings.Global.LOW_BATTERY_SOUND_TIMEOUT.0 means no timeout; batterysounds will always play>0 is milliseconds ofscreen-off time after which battery sounds will not play --><integername="def_low_battery_sound_timeout">0</integer> //低电量声音在屏幕关闭后是否超时播放 0-代表超时毫秒<!-- Initial value for theSettings.Secure.IMMERSIVE_MODE_CONFIRMATIONS setting,which is a comma separated listof packages that no longer need confirmationfor immersive mode.Override to disable immersivemode confirmation for certain packages. --><string name="def_immersive_mode_confirmations" translatable="false"></string>
是否需要沉浸式模式 <!-- Default forSettings.Global.WIFI_SCAN_ALWAYS_AVAILABLE --><integername="def_wifi_scan_always_available">0</integer> //Wifi 是否一致扫描 <!-- Default for Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS,1==on --><integername="def_lock_screen_show_notifications">1</integer>
//锁屏界面上展示通知 <!-- Default forSettings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS --><bool name="def_lock_screen_allow_private_notifications">true</bool>  //锁屏界面是否一直展示通知<!-- Default forSettings.Global.HEADS_UP_NOTIFICATIONS_ENABLED, 1==on --><integername="def_heads_up_enabled">1</integer><!-- Default for Settings.Global.DEVICE_NAME$1=MANUFACTURER $2=MODEL--><string name="def_device_name">%1$s %2$s</string> //设置多个设备名称<!-- Default for Settings.Global.DEVICE_NAME$1=MODEL--><string name="def_device_name_simple">%1$s</string> //设置单个设备名称<!-- Default for Settings.Secure.WAKE_GESTURE_ENABLED--><bool name="def_wake_gesture_enabled">true</bool> //手势唤醒是否可用<!-- Default stateof tap to wake --><bool name="def_double_tap_to_wake">true</bool> //手势是否可以使用<!-- Default for Settings.Secure.NFC_PAYMENT_COMPONENT--><string name="def_nfc_payment_component"></string><!-- Default setting for ability to add users from thelock screen --><bool name="def_add_users_from_lockscreen">false</bool><!-- add for customization 22 by suchuyun on 161209--><string name="def_time_12_24" translatable="false">24</string><!--是否自动关屏，默认true --><bool name="def_dim_screen">true</bool><!-- 无操作多少秒后灭屏 --><integer name="def_screen_off_timeout">60000</integer><!-- 无操作多少秒后休眠（该值要比灭屏时间长，因为在休眠之前会先灭屏） --><integer name="def_sleep_timeout">-1</integer><!-- 行模式是否默认开启 --><bool name="def_airplane_mode_on">false</bool><!-- 剧场模式是否默认开启 --><bool name="def_theater_mode_on">false</bool><!-- 开启飞行模式时会关掉的开关列表（通常会包括蓝牙，wifi，nfc等） --><!-- Comma-separated list of bluetooth, wifi, and cell. --><string name="def_airplane_mode_radios" translatable="false">cell,bluetooth,wifi,nfc,wimax</string><!-- 飞行模式下用户可以手动开启的开关列表 --><string name="airplane_mode_toggleable_radios" translatable="false">bluetooth,wifi,nfc</string><!--  --><string name="def_bluetooth_disabled_profiles" translatable="false">0</string><!-- 1=yes, 0=no是否从网络自动同步日期、时间、时区 --><bool name="def_auto_time">true</bool><!-- 1=yes, 0=no是否从网络自动同步时区--><bool name="def_auto_time_zone">true</bool><!-- 1=yes, 0=no是否开启自动旋转（即是否根据加速度传感器旋转屏幕方向） --><bool name="def_accelerometer_rotation">true</bool><!-- 屏幕默认亮度（取值区间为0–255） --><!-- Default screen brightness, from 0 to 255.  102 is 40%. --><integer name="def_screen_brightness">102</integer><!-- 是否开启屏幕亮度的自动调节 --><bool name="def_screen_brightness_automatic_mode">false</bool><!-- 1=yes, 0=no窗口动画缩放 --><fraction name="def_window_animation_scale">100%</fraction><!-- 1=yes, 0=no窗口透明度 --><fraction name="def_window_transition_scale">100%</fraction><!--是否开启触摸反馈 --><bool name="def_haptic_feedback">false</bool><!-- 0=disabled. 1=enabled.默认是否开启蓝牙 --><bool name="def_bluetooth_on">true</bool><!-- 0=disabled. 1=enabled.是否开启wifi显示 --><bool name="def_wifi_display_on">false</bool><!-- 是否允许安装不是在应用市场下载的app：1 = 允许通过安装包安装，0 = 不允许通过安装包安装 --><bool name="def_install_non_market_apps">false</bool><!-- 在安装app之前进行证书检查，1审查，0不审查 --><bool name="def_package_verifier_enable">true</bool><!-- Comma-separated list of location providers.Network location is off by default because it requiresuser opt-in via Setup Wizard or Settings.--><!-- 是否开启gps，若字符串为null则默认不开启gps，还需借助LOCATION_MODE进行判断 --><string name="def_location_providers_allowed" translatable="false">gps</string><!-- 是否开启辅助的gps应用 --><bool name="assisted_gps_enabled">true</bool><!-- 是否开启流量统计 --><bool name="def_netstats_enabled">true</bool><!-- 是否开启usb海量存储 --><bool name="def_usb_mass_storage_enabled">true</bool><!-- wifi默认是否开启--><bool name="def_wifi_on">false</bool><!-- wifi是否休眠（会和移动网络来回切换）取值为0-never, 1-only when plugged in, 2-always --><!-- 0 == never, 1 == only when plugged in, 2 == always --><integer name="def_wifi_sleep_policy">2</integer><!-- wdh --><bool name="def_wifi_wakeup_enabled">true</bool><!-- 是否通知用户打开网络 --><bool name="def_networks_available_notification_on">true</bool><!-- 0-disabled, 1-enabled是否开启设置备份 --><bool name="def_backup_enabled">false</bool><!-- 用于备份或者恢复的传输文件 --><!--<string name="def_backup_transport" translatable="false">android/com.android.internal.backup.LocalTransport</string>--><!--XunHu:setup default gms testGmsBackupTransportIsDefault transport at 2018-03-28 23:02 by trf1222 {{&&--><string name="def_backup_transport" translatable="false">com.google.android.gms/.backup.BackupTransportService</string><!--&&}}--><!--当有通知来时，led灯是否要重复闪烁--><!-- Default value for whether or not to pulse the notification LED when there is apending notification --><bool name="def_notification_pulse">true</bool><!-- 当有事件来临时是否播放通知铃声 --><bool name="def_mount_play_notification_snd">true</bool><!-- 是否自动启动主机检测系统 --><bool name="def_mount_ums_autostart">false</bool><!-- 是否在主机检测时显示通知 --><bool name="def_mount_ums_prompt">true</bool><!-- 当开启ums时是否显示通知 --><bool name="def_mount_ums_notify_enabled">true</bool><!-- 电量过低时是否铃声通知 --><!-- user interface sound effects --><integer name="def_power_sounds_enabled">1</integer><!-- 低电量时播放的铃声文件来源 --><string name="def_low_battery_sound" translatable="false">/system/media/audio/ui/LowBattery.ogg</string><!-- 当插拔电源时是否播放声音 --><integer name="def_dock_sounds_enabled">0</integer><!-- wdh --><integer name="def_dock_sounds_enabled_when_accessibility">0</integer><!-- 插上电源时播放的音频文件 --><string name="def_desk_dock_sound" translatable="false">/system/media/audio/ui/Dock.ogg</string><!-- 拔下电源时播放的音频文件 --><string name="def_desk_undock_sound" translatable="false">/system/media/audio/ui/Undock.ogg</string><!-- 使用车载电源充电时播放的音频文件 --><string name="def_car_dock_sound" translatable="false">/system/media/audio/ui/Dock.ogg</string><!-- 当从车载电源拔下时播放的音频文件 --><string name="def_car_undock_sound" translatable="false">/system/media/audio/ui/Undock.ogg</string><!-- 当解锁或是锁屏时是否播放声音 --><integer name="def_lockscreen_sounds_enabled">0</integer><!-- 锁屏时播放的音频文件 --><string name="def_lock_sound" translatable="false">/system/media/audio/ui/Lock.ogg</string><!-- 解锁时播放的音频文件 --><string name="def_unlock_sound" translatable="false">/system/media/audio/ui/Unlock.ogg</string><!-- 在未解锁的情况下设备进入到可信任状态时播放的音频文件 --><string name="def_trusted_sound" translatable="false">/system/media/audio/ui/Trusted.ogg</string><!-- 开启无线充电时播放声音 --><string name="def_wireless_charging_started_sound" translatable="false">/system/media/audio/ui/WirelessChargingStarted.ogg</string><!-- 第一次开机时默认不锁屏（若要彻底去掉锁屏页面还需要在别的方法中设置 --><bool name="def_lockscreen_disabled">false</bool><!-- 设备是否已经被配置（该参数考虑的时多用户不同时刻使用同一个设备的情况） --><bool name="def_device_provisioned">false</bool><!-- 使用dock音频输出媒体 --><integer name="def_dock_audio_media_enabled">1</integer><!-- wdh --><!-- Notifications use ringer volume --><bool name="def_notifications_use_ring_volume">true</bool><!-- 静音模式下是否允许震动 --><!-- Default for Settings.System.VIBRATE_IN_SILENT --><bool name="def_vibrate_in_silent">true</bool><!-- wdh --><!-- Default for Settings.Secure.SYNC_PARENT_SOUNDS --><bool name="def_sync_parent_sounds">true</bool><!-- 访问模式下是否语音播报密码 --><!-- Default for Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD --><bool name="def_accessibility_speak_password">true</bool><!-- wdh --><!-- Default for Settings.Secure.TOUCH_EXPLORATION_ENABLED --><bool name="def_touch_exploration_enabled">false</bool><!-- wdh --><!-- Default value for Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE --><fraction name="def_accessibility_display_magnification_scale">200%</fraction><!-- wdh --><!-- Default value for Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED --><bool name="def_accessibility_display_magnification_enabled">false</bool><!-- wdh --><!-- Default value for Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE --><bool name="def_accessibility_display_magnification_auto_update">true</bool><!-- wdh --><!-- Default for Settings.System.USER_ROTATION --><integer name="def_user_rotation">0</integer><!-- wdh --><!-- Default for Settings.Secure.DOWNLOAD_MAX_BYTES_OVER_MOBILE. <=0 if no limit --><integer name="def_download_manager_max_bytes_over_mobile">-1</integer><!-- wdh --><!-- Default for Settings.Secure.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE. <=0 if no limit --><integer name="def_download_manager_recommended_max_bytes_over_mobile">-1</integer><!-- wdh --><!-- Default for Settings.Secure.LONG_PRESS_TIMEOUT_MILLIS --><integer name="def_long_press_timeout_millis">400</integer><!-- wdh --><!-- Default for Settings.Secure.MULTI_PRESS_TIMEOUT --><integer name="def_multi_press_timeout_millis">300</integer><!-- wdh --><!-- Default for Settings.Secure.SHOW_IME_WITH_HARD_KEYBOARD --><bool name="def_show_ime_with_hard_keyboard">false</bool><!-- wdh --><!-- Default for Settings.System.POINTER_SPEED --><integer name="def_pointer_speed">0</integer><!-- wdh --><!-- Default for DTMF tones enabled --><bool name="def_dtmf_tones_enabled">false</bool><!-- wdh --><!-- Default for UI touch sounds enabled --><bool name="def_sound_effects_enabled">false</bool><!-- wdh --><!-- Development settings --><bool name="def_stay_on_while_plugged_in">false</bool><!-- wdh --><!-- Number of retries for connecting to DHCP.Value here is the same as WifiStateMachine.DEFAULT_MAX_DHCP_RETRIES --><integer name="def_max_dhcp_retries">9</integer><!-- wdh --><!-- Default for Settings.Secure.USER_SETUP_COMPLETE --><bool name="def_user_setup_complete">false</bool><!-- 当经过一定时间后，如果低电量提醒为播放声音，则灭屏 --><!-- Default for Settings.Global.LOW_BATTERY_SOUND_TIMEOUT.0 means no timeout; battery sounds will always play>0 is milliseconds of screen-off time after which battery sounds will not play --><integer name="def_low_battery_sound_timeout">0</integer><!-- wdh --><!-- Initial value for the Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS setting,which is a comma separated list of packages that no longer need confirmationfor immersive mode.Override to disable immersive mode confirmation for certain packages. --><string name="def_immersive_mode_confirmations" translatable="false"></string><!-- 设置-wlan-高级-随时扫描开关 --><!-- Default for Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE --><integer name="def_wifi_scan_always_available">0</integer><!-- 是否在锁屏界面显示通知 --><!-- Default for Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, 1==on --><integer name="def_lock_screen_show_notifications">1</integer><!-- 允许在锁屏界面上显示私有通知，就像是解锁状态下一样 --><!-- Default for Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS --><bool name="def_lock_screen_allow_private_notifications">true</bool><!-- wdh --><!-- Default for Settings.Global.HEADS_UP_NOTIFICATIONS_ENABLED, 1==on --><integer name="def_heads_up_enabled">1</integer><!-- wdh --><!-- Default for Settings.Global.DEVICE_NAME $1=MANUFACTURER $2=MODEL--><string name="def_device_name">%1$s %2$s</string><!-- wdh --><!-- Default for Settings.Global.DEVICE_NAME $1=MODEL--><string name="def_device_name_simple">%1$s</string><!-- wdh --><!-- Default for Settings.Secure.WAKE_GESTURE_ENABLED --><bool name="def_wake_gesture_enabled">true</bool><!-- wdh --><!-- Default state of tap to wake --><bool name="def_double_tap_to_wake">true</bool><!-- wdh --><!-- Default for Settings.Secure.NFC_PAYMENT_COMPONENT --><string name="def_nfc_payment_component"></string><!-- wdh --><!-- Default setting for ability to add users from the lock screen --><bool name="def_add_users_from_lockscreen">false</bool><!-- wdh --><!--  default setting for Settings.System.END_BUTTON_BEHAVIOR : END_BUTTON_BEHAVIOR_SLEEP --><integer name="def_end_button_behavior">0x2</integer><!-- wdh --><!-- default setting for Settings.Global.DEFAULT_RESTRICT_BACKGROUND_DATA --><bool name="def_restrict_background_data">false</bool><!--///xunhu:cts at 2018.01.20 18:55:23 by trf1201{{&&///Description:XUNHU_SYSTEM_TIME_DEFAULT_24 yes:默认24小时制 no:12小时制--><string name="time_12_24" translatable="false">24</string><!--&&}}--><!--///Description:XUNHU_SHOW_BATTERY_LEVEL yes:默认打开电池电量百分比 no:关闭--><integer name="show_battery_percent">1</integer>  <!--    Xunhu: Custom navigationbar at 2017-12-13 10:43:08 by TRF066        --><!--   默认是否允许隐藏导航栏，０表示不允许，１表示允许        --><integer name="default_navigationbar_enabled_hide">0</integer><!--  默认导航栏样式，下标从０开始，具体对应的样式请参照设置中显示多样式顺序    --><integer name="default_navigationbar_style">0</integer><!-- Xunhu: End custom navigationbar at 2017-12-13 10:43:08 by TRF066    .......
</resources>

初始化命令
对应USB连接的安卓设备

用help查看版本，位置和参数

adb --help
Android Debug Bridge version 1.0.41
Version 30.0.4-6686687
Installed as C:UsersusernameAppDataLocalAndroidSdkplatform-toolsadb.exe
…

查看设备列表

adb devices -l

daemon not running; starting now at tcp:5037
daemon started successfully
List of devices attached
HMKNW17705014880 device product:PRA-AL00 model:PRA_AL00 device:HWPRA-H transport_id:1

进入设备shell, 如果有多个设备，需要使用 -s 参数

adb -s HMKNW17705014880 shell
HWPRA-H:/ $

Settings相关操作
安卓的settings共有三个表：

global：所有的偏好设置对系统的所有用户公开，第三方APP只能读，无写权限；
system：包含各种各样的用户偏好系统设置；
secure：安全性的用户偏好系统设置，第三方APP只能读，无写权限

列出指定配置表中的所有条目

HWPRA-H:/ $ settings list global

取出指定配置表中指定条目的值

HWPRA-H:/ $ settings get global add_users_when_locked
0

设置(不存在就添加)条目的值

HWPRA-H:/ $ settings put global sms_outgoing_check_max_count 5

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