CODEWITHSUNDEEP
androidactivity-finish
Toran Billups
Toran Billups

Reputation: 27399

How to finish every activity on the stack except the first in Android

I'm porting an iPhone app to Android and I can't seem to find a means to pop each activity on the stack except the root activity.

In objective-c I would do something like the below

[navController popToRootViewControllerAnimated:YES];

Anyone know if I can effectively call "finish()" on each activity after some action?

Upvotes: 23

Views: 10172

Answers (2)

Femi
Femi

Reputation: 64700

Look at http://developer.android.com/reference/android/content/Intent.html#FLAG_ACTIVITY_CLEAR_TOP: you can startActivity on the root activity with this flag, and it will blow away all activities above it. You should read the docs carefully about the intent delivery behavior.

Upvotes: 3

Glendon Trullinger
Glendon Trullinger

Reputation: 4062

If you want to start one Activity, say, your homescreen, and remove every other Activity in your application's stack, you can use:

Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); // Removes other Activities from stack
startActivity(intent);

If you also want to provide this event in the MainActivity (such as a logo click in the title bar), you can add the FLAG_ACTIVITY_SINGLE_TOP flag as well to make sure it does not add another instance of itself to the stack.

Upvotes: 40

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