窗口已经集中 - 忽略xxx.xxx.xxx的焦点增益

Question

  

可能重复：
  window already focused - ignoring focus gain of com.android.internal.view

我使用通知通知用户他/她是否有网站消息，当用户点击通知时，它会关注MessageActivity以显示消息。

除了一种情况之外它工作正常：如果用户点击新通知时当前关注的Activity是MessageActivity，则控制台将打印已经聚焦的窗口，忽略焦点增益：com.android.internal.view.IInputMethodClient $存根$ Proxy ，没有任何事情发生。

请帮帮我。 MessageActivity的launchmode是singleTask。

    Notification notification = new Notification();  
    notification.icon = R.drawable.msg;  
    notification.tickerText = content
    notification.defaults=Notification.DEFAULT_SOUND;  
    notification.audioStreamType= android.media.AudioManager.ADJUST_LOWER;  
    notification.when=System.currentTimeMillis();

    Intent notificationIntent = new Intent(MainActivity.this, MessageActivity.class); 
    notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);  
    notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);  
    notificationIntent.addFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);  
    notificationIntent.setAction(System.currentTimeMillis());
    notificationIntent.putExtra("msgid", msgid); 

    PendingIntent pendingIntent = PendingIntent.getActivity(AutoActivity.this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);  
    notification.setLatestEventInfo(MainActivity.this, "get a message", "test", pendingIntent);  
    notification.flags |= Notification.FLAG_AUTO_CANCEL; 
    manager.notify(msgid, notification);