Android 通知重启应用但想恢复 [英] Android Notification restarts app but want to resume

问题描述

我已经能够为我的活动显示通知，以及当用户单击应用程序重新启动的通知.但是我只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最前面......但不刷新网页.我可以捕获这个意图还是我发送了错误的意图?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?

Hi I have a been able to get a notification displayed for my activity, and when the user clicks the notification the app restarts. However I just want it to reappear not restart. eg. it is a web app and I want it to come to the front when the user selects the notification..but not refresh the web page. Can I trap this intent or am I sending the wrong intent? Normally if I press the home button and click on the app icon the app comes to the fore and doesn't refresh/restart. So this is the behaviour I want. Any ideas ?

 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);

推荐答案

我把这个放在清单中

android:launchMode="singleInstance"

这为我解决了问题.还有 这个答案，我还没有尝试过，它暗示了其他有趣的事情.

This fixed the problem for me. Also this answer which I have not tried which allude to other things of interest.

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