Intent to resume a previously paused activity (Called from a Notification)

Question

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); 

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.

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.

Thanks.

Answer 1

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

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

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; 

Answer 2

This helps for me android:launchMode="singleInstance"

<activity         android:name="com.mosis.automatskidnevnik.MainActivity"         android:launchMode="singleInstance"         android:label="@string/app_name" >         ...