Android 7.0 省电模式 默认20% 自动开启

 

packages\apps\Settings\src\com\android\settings\fuelgauge\BatterySaverSettings.java

 

@Override

public void onActivityCreated(Bundle savedInstanceState) {

super.onActivityCreated(savedInstanceState);

if (mCreated) {

mSwitchBar.show();

return;

}

mCreated = true;

addPreferencesFromResource(R.xml.battery_saver_settings);

 

mContext = getActivity();

mSwitchBar = ((SettingsActivity) mContext).getSwitchBar();

mSwitch = mSwitchBar.getSwitch();

mSwitchBar.show();

 

mTriggerPref = new SettingPref(SettingPref.TYPE_GLOBAL, KEY_TURN_ON_AUTOMATICALLY,

Global.LOW_POWER_MODE_TRIGGER_LEVEL,

20, /*default*/ // 添加自动默认值

getResources().getIntArray(R.array.battery_saver_trigger_values)) { //添加数组值 20 Setting res 下面arrays.xml 

@Override

protected String getCaption(Resources res, int value) {

if (value > 0 && value < 100) {

return res.getString(R.string.battery_saver_turn_on_automatically_pct,

Utils.formatPercentage(value));

}

return res.getString(R.string.battery_saver_turn_on_automatically_never);

}

};

mTriggerPref.init(this);

 

mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);

}