Android Notification 重新启动应用程序但想要恢复

Question

您好，我已经能够获得为我的 Activity 显示的通知，并且当用户 单击应用程序重新启动的通知。但是我只是希望它重新出现而不是重新启动。例如。它是一个网络应用程序，我希望它在用户选择通知时出现在前面。但不刷新网页。我可以捕获这个 Intent 还是我发送了错误的 Intent ？通常，如果我按下主页按钮并单击应用程序图标，应用程序就会出现并且不会刷新/重新启动。所以这就是我想要的行为。有什么想法吗？

 String ns = Context.NOTIFICATION_SERVICE;
 NotificationManager mNotificationManager = (NotificationManager)
                                             getSystemService(ns);
 //2.Instantiate the Notification
 int icon = R.drawable.notification_icon;
 CharSequence tickerText = "My App";  // temp msg on status line 
 long when = System.currentTimeMillis();
 Notification notification = new Notification(icon, tickerText, when);
 notification.flags |= Notification.FLAG_ONGOING_EVENT;
 //3.Define the Notification's expanded message and Intent: 
 Context context = getApplicationContext();
 CharSequence contentTitle = "Notification";
 CharSequence contentText = "My app!"; // message to user
 Intent notificationIntent = new Intent(this, HelloAndroid2.class);
 PendingIntent contentIntent = PendingIntent.getActivity(this, 0, 
                                                          notificationIntent, 0);
 notification.setLatestEventInfo(context, contentTitle, contentText,
                                                          contentIntent);
 //4.Pass the Notification to the NotificationManager:  
 final int NOTIFICATION_ICON_ID = 1;
 mNotificationManager.notify(NOTIFICATION_ICON_ID, notification);

Answer 1

我把它放在 list 中

android:launchMode="singleInstance"

这解决了我的问题。还有this answer我没有尝试过这暗示了其他有趣的事情。