锁定屏幕上的Android活动

时间:2018-08-13 10:29:21

标签: android android-activity broadcastreceiver lockscreen powermanager

我需要我的项目帮助,我应该让BroadcastReceiver在当前的锁定屏幕上启动全屏活动。 我在活动中尝试了这个:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.i("onCreate","success");
    PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);

    PowerManager.WakeLock wakeLock = pm.newWakeLock((PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP), "TAG");
    wakeLock.acquire(10*60*1000L /*10 minutes*/);
    getWindow().addFlags(
            WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
                    WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
                    WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
                    WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
    this.setShowWhenLocked(true);
    this.setTurnScreenOn(true);
    setContentView(R.layout.activity_stop);
}

BroadcastReceiver:

Intent i = new Intent(context,StopTheAlarm.class);
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);

AndroidManifest.xml:

<activity android:name=".Stop"
         android:showOnLockScreen="true"
         android:screenOrientation="sensorPortrait">
</activity>

但是在我的android 7.0.1手机上不起作用

2 个答案:

答案 0 :(得分:0)

更新: 我删除了

this.setShowWhenLocked(true);
this.setTurnScreenOn(true);

导致应用崩溃的

答案 1 :(得分:0)

您的解决方案不适用于Android API 27及更高版本。使用此thread中的代码。