Android: Clear the back stack

Question

In Android I have some activities, let\'s say A, B, C.

In A, I use this code to open B:

Intent intent = new Intent(this, B.class);
startActivity(inte         


        

Answer 1

The given code works correctly. I have tried in the Application Life Cycle sample.

I haven't got B and C in the back stack after starting activity A with flag, FLAG_ACTIVITY_CLEAR_TOP

Answer 2

i called activity_name.this.finish() after starting new intent and it worked for me.

I tried "FLAG_ACTIVITY_CLEAR_TOP" and "FLAG_ACTIVITY_NEW_TASK"

But it won't work for me... I am not suggesting this solution for use but if setting flag won't work for you than you can try this..But still i recommend don't use it

Answer 3

logout.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); logout.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

Answer 4

I found the answers here a little misleading because the code in the original question seems to work fine for me?

With A being the root activity, starting it from B or C only with FLAG_ACTIVITY_CLEAR_TOP does remove B and C from the back stack.

Answer 5

This bothers me for a long time .Finally I worked it out by doing this:

In fragment,use:

Intent intent = new Intent(view.getContext(), A.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK); 
startActivity(intent);

In Activity,use(add one more intent flag Intent.FLAG_ACTIVITY_CLEAR_TASK compared to fragment):

Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Answer 6

As per Wakka in Removing an activity from the history stack...

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Add android:noHistory="true" attribute to your <activity> in the AndroidManifest.xml like this:

    <activity android:name=".MyActivity"
        android:noHistory="true">
    </activity>