意图恢复previously暂停活动（从通知调用） [英] Intent to resume a previously paused activity (Called from a Notification)

问题描述

我开发一个应用程序，它显示了一个通知给用户。该通知的目的是可以很容易地将用户返回到活动，当用户是在另一个活动。我使用我的应用程序这个code创建并显示该通知。

I'm developing an app which shows a notification to the user. The notification's objective is to make it easy to the user to return to the activity when the user is in another activity. I am using this code in my app to create and show the notification.

                    notification = new Notification(R.drawable.icon,
                            "Notify",
                            System.currentTimeMillis());
                    notification.setLatestEventInfo(this, "App name",
                            "App message",
                            PendingIntent.getActivity(
                                    this, 0,
                                    new Intent(this, Main.class),
                                    PendingIntent.FLAG_CANCEL_CURRENT));
                    notification.flags |= Notification.FLAG_ONGOING_EVENT;
                    nManager.notify(0, notification);

但是，当用户敲击所述通知开始，而不是用户使用之前所述一个相同的活性的新实例，

But when the user taps the notification starts a new instance of the same activity, instead of the one that the user was using before.

我觉得这是与PendingIntent，但我无法找到如何使意图恢复previously暂停创建新实例的活动实例吧。

I think this has something to do with PendingIntent but I can't find how to make that Intent to resume a previously paused instance of the activity instead of creating a new instance.

感谢。

推荐答案

我发现了如何做到这一点。我增加了以下code：

I found out how to do it. I added the following code:

notifyIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);

现在我的code是这样的：

Now my code looks like this:

    notification = new Notification(R.drawable.icon,
            "Notify", System.currentTimeMillis());
    notification.setLatestEventInfo(this, "App name",
            "App message", PendingIntent.getActivity(this,
                    0, new Intent(this, Main.class)
                            .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                                    | Intent.FLAG_ACTIVITY_SINGLE_TOP),
                    PendingIntent.FLAG_CANCEL_CURRENT));
    notification.flags |= Notification.FLAG_ONGOING_EVENT;

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