CODEWITHSUNDEEP
androidandroid-activityback-stack
user2241269
user2241269

Reputation: 21

Only one activity in Back Stack

I have 5 activities: A, B, C, D and E.

I can start all activities from each of them, but I want that Back Stack only save the last activity.

For example: A->B->C->D. If I am in D, I can go back to C, but now, in C, when I push back button I want to only can go to the main activity (A).

Is it posible? Thanks!

Upvotes: 2

Views: 691

Answers (2)

Raghunandan
Raghunandan

Reputation: 133580

You can clear the back stack once you are in C and navigate to A.

A to B.B to C. C to D.

Back D to C

In C you can use the below.

  @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
  if (keyCode == KeyEvent.KEYCODE_BACK) {
    onBackPressed();

    }

return super.onKeyDown(keyCode, event);
   }

public void onBackPressed() {
Intent myIntent = new Intent(C.this, A.class)
myIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);//clear top of stack.
startActivity(myIntent);
finish();
return;
    }

Upvotes: 0

EJK
EJK

Reputation: 12534

When transitioning from B -> C, call the finish() method on Activity B. This will prevent B from being placed on the back stack.

Upvotes: 1

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