设置默认关闭充电，锁屏，触摸等提示音

锁屏和触摸提示音的设置可以直接修改defaults文件。改1为0或true为false。

a/vendor/mediatek/proprietary/packages/apps/SettingsProvider/res/values/defaults.xml
+++ b/vendor/mediatek/proprietary/packages/apps/SettingsProvider/res/values/defaults.xml
@@ -75,7 +75,7 @@
     <string name="def_desk_undock_sound" translatable="false">/system/media/audio/ui/Undock.ogg</string>
     <string name="def_car_dock_sound" translatable="false">/system/media/audio/ui/Dock.ogg</string>
     <string name="def_car_undock_sound" translatable="false">/system/media/audio/ui/Undock.ogg</string>
-    <integer name="def_lockscreen_sounds_enabled">1</integer>
+    <integer name="def_lockscreen_sounds_enabled">0</integer>
     <string name="def_lock_sound" translatable="false">/system/media/audio/ui/Lock.ogg</string>
     <string name="def_unlock_sound" translatable="false">/system/media/audio/ui/Unlock.ogg</string>
     <string name="def_trusted_sound" translatable="false">/system/media/audio/ui/Trusted.ogg</string>
@@ -132,7 +132,7 @@
     <!-- 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>
+    <bool name="def_sound_effects_enabled">false</bool>

充电提示音需要增加一个def_charging_sounds_enabled的属性，并且在DatabaseHelper中加载该属性。

diff --git a/vendor/mediatek/proprietary/packages/apps/SettingsProvider/res/values/defaults.xml b/vendor/mediatek/proprietary/packages/apps/SettingsProvider/res/values/defaults.xml
index 4deea4f..683a8f5 100755
--- a/vendor/mediatek/proprietary/packages/apps/SettingsProvider/res/values/defaults.xml
+++ b/vendor/mediatek/proprietary/packages/apps/SettingsProvider/res/values/defaults.xml
@@ -68,6 +68,7 @@
 
     <!-- user interface sound effects -->
     <integer name="def_power_sounds_enabled">1</integer>
+    <integer name="def_charging_sounds_enabled">0</integer>
     <string name="def_low_battery_sound" translatable="false">/system/media/audio/ui/LowBattery.ogg</string>
     <integer name="def_dock_sounds_enabled">0</integer>
     <integer name="def_dock_sounds_enabled_when_accessibility">0</integer>
diff --git a/vendor/mediatek/proprietary/packages/apps/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java b/vendor/mediatek/proprietary/packages/apps/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
index d71db25..3ec5071 100755
--- a/vendor/mediatek/proprietary/packages/apps/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
+++ b/vendor/mediatek/proprietary/packages/apps/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
@@ -2603,6 +2603,8 @@ class DatabaseHelper extends SQLiteOpenHelper {
                     R.string.def_trusted_sound);
             loadIntegerSetting(stmt, Settings.Global.POWER_SOUNDS_ENABLED,
                     R.integer.def_power_sounds_enabled);
+            loadIntegerSetting(stmt, Settings.Global.CHARGING_SOUNDS_ENABLED,
+                    R.integer.def_charging_sounds_enabled);
             loadStringSetting(stmt, Settings.Global.LOW_BATTERY_SOUND,
                     R.string.def_low_battery_sound);
             loadIntegerSetting(stmt, Settings.Global.DOCK_SOUNDS_ENABLED,

参考链接：
Android SettingsProvider默认关闭充电提示音