仿QQ锁屏界面消息提示

唤醒屏幕：

1 PowerManager pm = (PowerManager) context
2                     .getSystemService(Context.POWER_SERVICE);
3             WakeLock mWakeLock = pm.newWakeLock(
4                     PowerManager.ACQUIRE_CAUSES_WAKEUP
5                             | 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) context
2                     .getSystemService(Context.KEYGUARD_SERVICE);
3             KeyguardLock keyguardLock = keyguardManager.newKeyguardLock("");
4             keyguardLock.disableKeyguard();

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