Launch Camera --> check shutter sound default status is "OFF" --> set the shutter sound status to "ON" --> click the restore to default button --> the shutter sound status isn't the default value "OFF"
As the customization and the value of SDMID isn't "on" or "off",so I must translate it in the java code. But the preference.xml has the definition (KEY_SHUTTER_SOUND),and the default value is this:
<ListPreference
camera:key = "pref_camera_shutter_sound"
camera:defaultValue="@string/pref_camera_shutter_sound_default"
...
/>
If I don't deal with it,the default value isn't via customization but
camera:defaultValue="@string/pref_camera_shutter_sound_default"
So I set the shutter sound default value in the method restorePreferences()in the CameraSettings.java manually.I add a function:
private static void setShutterSoundDefault() {
SharedPreferences.Editor editor = preferences.edit();
editor.putString(KEY_SHUTTER_SOUND,shutterValue);
editor.apply();
}
andadd it end of the restorePreference().The shutterValue is from SDM which you want to custom,not
camera:defaultValue="@string/pref_camera_shutter_sound_default"
OK,it can work now.
