定时熄灭屏幕的方法

wakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, this.getClass().getCanonicalName());wakeLock.acquire();handler.postDelayed(new Runnable(){@Overridepublic void run() {if(wakeLock!=null)wakeLock.release();}}, 1000*60);

记得添加权限

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

还有一个函数isHeld()表示判断wake_lock锁是否被释放

wakeLock.isHeld()