在 android 里 常用的 默认开关的 意义 ._def_networks_available_notification_on

在 \frameworks\base\packages\SettingsProvider\res\values\defaults.xml 文件里定义的开关 如下：

    <bool name="def_dim_screen">true</bool>                自动关屏        开
    <bool name="def_airplane_mode_on">false</bool>     飞行模式        关
    <bool name="def_auto_time">true</bool>              自动适应时间   开
    <bool name="def_accelerometer_rotation">true</bool>   
    <bool name="def_screen_brightness_automatic_mode">true</bool>    自动亮度调节
    <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_install_non_market_apps">false</bool>             安装非市场apk      关
    <bool name="assisted_gps_enabled">true</bool>                     gps定位         关
    <bool name="def_usb_mass_storage_enabled">true</bool>             usb存储模式    开
    <bool name="def_wifi_on">false</bool>                             wifi      关
    <bool name="def_networks_available_notification_on">true</bool>   
    <bool name="def_backup_enabled">true</bool>                       保存             开
    <bool name="def_notification_pulse">true</bool>                   震动提醒        开
    <bool name="def_mount_play_notification_snd">false</bool>         
    <bool name="def_mount_ums_autostart">false</bool>                  自动重启        关
    <bool name="def_mount_ums_prompt">true</bool>
    <bool name="def_mount_ums_notify_enabled">true</bool>
    <bool name="def_notifications_use_ring_volume">true</bool>         声音提醒         开
    <bool name="def_vibrate_in_silent">true</bool>                   无声震动
    <bool name="def_device_provisioned">true</bool>                 设置提供

    <!-- Default for time mode 12 or 24 pattern -->
    <string name="def_time_12_24">24</string>                                设置时间格式  24小时制还是12小时制
    <integer name="def_screen_off_timeout">60000</integer>    自动关屏幕时间    1分钟
    <!-- Default screen brightness, from 0 to 255.  102 is 40%. -->
    <integer name="def_screen_brightness">216</integer>                 屏幕亮度
    <integer name="def_network_preference">1</integer>                  网络默认选择    第一项
    <integer name="def_power_sounds_enabled">1</integer>                低电量声音     开
    <integer name="def_dock_sounds_enabled">0</integer>                     
    <integer name="def_lockscreen_sounds_enabled">0</integer>               锁屏声音      关
 

备注:

此数据库由:frameworks\base\packages\SettingsProvider\src\com\android\providers\settings\DatabaseHelper.java 创建,

其默认初始值位置:frameworks\base\packages\SettingsProvider\res\values\defaults.xml

附：本文来自http://blog.csdn.net/wh_19910525/article/details/8041580

本人已在android4.1上更改成功默认时间格式为24小时制

    更改默认输入法为搜狗输入法


diff --git a/frameworks/base/packages/SettingsProvider/res/values/defaults.xml b/frameworks/base/packages/SettingsProvider/res/values/default
index e0c4573..9173218 100755
--- a/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
+++ b/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -63,7 +63,7 @@
     <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>
-
+    <string name="config_default_input_method" translatable="false">com.android.inputmethod.pinyin/.PinyinIME</string>
     <!-- user interface sound effects -->
     <integer name="def_power_sounds_enabled">1</integer>
     <string name="def_low_battery_sound" translatable="false">/system/media/audio/ui/LowBattery.ogg</string>
diff --git a/frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java b/frameworks/base/packages/Sett
index 89f2fdb..1013eff 100755
--- a/frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
+++ b/frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
@@ -1597,7 +1597,10 @@ public class DatabaseHelper extends SQLiteOpenHelper {
 
             loadBooleanSetting(stmt, Settings.Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
                     R.bool.def_networks_available_notification_on);
-
+          
+           loadStringSetting(stmt, Settings.Secure.DEFAULT_INPUT_METHOD,
+                    R.string.config_default_input_method );
+           
             String wifiWatchList = SystemProperties.get("ro.com.android.wifi-watchlist");
             if (!TextUtils.isEmpty(wifiWatchList)) {
                 loadSetting(stmt, Settings.Secure.WIFI_WATCHDOG_WATCH_LIST, wifiWatchList);
(END)