唤醒屏幕：

1 PowerManager pm = (PowerManager) context2                     .getSystemService(Context.POWER_SERVICE);3             WakeLock mWakeLock = pm.newWakeLock(4                     PowerManager.ACQUIRE_CAUSES_WAKEUP5                             | PowerManager.SCREEN_DIM_WAKE_LOCK, "SimpleTimer");6             mWakeLock.acquire();7             mWakeLock.release();

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

 

 

锁屏显示消息：

1 KeyguardManager keyguardManager = (KeyguardManager) context2                     .getSystemService(Context.KEYGUARD_SERVICE);3             KeyguardLock keyguardLock = keyguardManager.newKeyguardLock("");4             keyguardLock.disableKeyguard();

需要权限：<uses-permission android:name="android.permission.DISABLE_KEYGUARD" />