setResult does not work when BACK button pressed

Question

I am trying to setResult after the BACK button was pressed. I call in onDestroy

Intent data = new Intent();
setResult(RESULT_OK, data) 

But

Answer 1

If you want to set some custom RESULT_CODE in onBackPressed event then you need to first set the result and then call the super.onBackPressed() and you will receive the same RESULT_CODE in the caller activity's onActivityResult method

    @Override
    public void onBackPressed()
    {
         setResult(SOME_INTEGER);
         super.onBackPressed();
    }

Answer 2

You should override onOptionsItemSelected like this:

@Override
public boolean onOptionsItemSelected(final MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
        final Intent mIntent = new Intent();
        mIntent.putExtra("param", "value");
        setResult(RESULT_OK, mIntent);
        finish();
        return true;
    default:
        return super.onOptionsItemSelected(item);
    }
}

Answer 3

I refactored my code. Initially I prepared some data and set it as activity result in onDestroy (this did not work). Now I set activity data each time the data to be returned is updated, and have nothing in onDestroy.

Answer 4

Refer onActivityResult(int, int, Intent) doc

Solution is to check the resultCode for value Activity.RESULT_CENCELED. If yes, then it means that either BACK was pressed or the activity crashed. Hope it works for you guys, works for me :).