How to finish parent activity from child activity

Question

I am new to Android development.

I have created a main Activity (->A), which has 4 buttons. One of the 4 buttons is the EXIT-button.

I start another activity (->B), on click of the EXIT-button. This opens 'B'Activity via an intent from 'A'Activity.

Activity 'B' contains - Do you want to exit? Yes-Button & No-Button.

If I give finish(), onclick of the button - it exits the 'B'Activity. I want to finish 'B' & 'A'.

I have even tried A.finish() -> this doesn't get recognized and results in syntax/semantic error.

I would appreciate help here.

P.S : I am using Android-2.2 version phone, and I do not like to use ActivityManager to resolve this.

score 53 · Accepted Answer · answered Mar 12 '12 at 09:04

53

Try to launch child activity with

 startActivityForResult(intent, REQUEST_EXIT);

In child activity

case R.id.quit:
     setResult(RESULT_OK, null);
     finish();

In parent activity

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    if (requestCode == REQUEST_EXIT) {
         if (resultCode == RESULT_OK) {
            this.finish();

         }
     }
}

answered Mar 12 '12 at 09:04

Georgy Gobozov

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Does that work if the parent activity didn't appear. I mean I have a button that start another activity. on this button click I also wonna finish the current activity and its parent – hasan Jan 22 '14 at 12:51
This method will work as long the the child activity was started in the parent activity using startActivityForResult, and onActivityResult is defined in parent. – Chris - Jr Jan 06 '17 at 21:25

score 6 · Answer 2 · answered Mar 12 '12 at 09:02

6

use startActivityForResult() in Activity A for start activity B and onActivityResult() in A just finish() Activity A. In Activity B on Button pressed just finish() Activity B.

answered Mar 12 '12 at 09:02

user370305

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thanks Georgy has explained the same - i have used his code section into mine. – sudhishkr Mar 19 '12 at 07:47

Santhosh · Answer 3 · 2012-03-12T11:03:05.410

You can finish parent activity from child activity like...

In Parent....

 startActivityForResult(new Intent(Parent.this, Child.class), ACTIVITY_CONSTANT);

And override the OnActivityForResult(...) method in Parent .

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // TODO Auto-generated method stub
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode == ACTIVITY_CONSTANT)
    {
        finish();
    }
}

When you call finish() on child activity, it finishes parent also.

How to finish parent activity from child activity

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