【 Android】使手机屏幕常亮，不进入待机状态

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

Android中,申请WakeLock可以让你的进程持续执行即使手机进入睡眠模式,比较实用的是比如后台有网络功能,可以保证操作持续进行.

需要权限

<uses-permission android:name="android.permission.WAKE_LOCK"/>

API

Flag Value	CPU	Screen	Keyboard
`PARTIAL_WAKE_LOCK`	On*	Off	Off
`SCREEN_DIM_WAKE_LOCK`	On	Dim	Off
`SCREEN_BRIGHT_WAKE_LOCK`	On	Bright	Off
`FULL_WAKE_LOCK`	On	Bright	Bright

PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, Constants.TAG);
//打开
wakeLock.acquire();
//关闭
if (wakeLock != null) {
                wakeLock.release();
                wakeLock = null;
            }

另一种方法是

@Override
protected void onCreate(Bundle bundle) {
super .onCreate(bundel);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
//or
getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}