simulate up when back button is pressed

Question

I'm working on an android app and recently, I discovered that the default back button onBackPressed() produces a back behaviour, while the getSupportActionBar().setDisplayHomeAsUpEnabled(true) produces an up behaviour. And the two have significant differences.

I was wondering if I can simulate the up behaviour when I press the hardware back button, so that it navigates up instead of back. Thanks.

Have you tried overriding `onBackPressed` and calling `NavUtils.navigateUpFromSameTask(this);` from within it? — Michael, Feb 17 '17 at 12:54
The `NavUtils.navigateUpFromSameTask(this);` is what I was missing. Thanks — vickmwas, Feb 17 '17 at 15:57

score 3 · Accepted Answer · answered Feb 17 '17 at 12:58

3

You can do this.

@Override
public void onBackPressed() {
    NavUtils.navigateUpFromSameTask(this);
}

answered Feb 17 '17 at 12:58

phoenix

496
3
11

Thanks. It worked. The `NavUtils.navigateUpFromSameTask(this);` is what I was missing – vickmwas Feb 17 '17 at 15:57

Abednego · Answer 2 · 2017-03-02T10:12:48.753

0

You can do this

Overide onOptionsItems Selected

Create a switch case of android.R.id.home Call method onBackPressed();

here is the code

@Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();

            default:
                return super.onOptionsItemSelected(item);
        }
    }

edited Mar 02 '17 at 10:12

answered Mar 02 '17 at 10:04

Abednego

599
10
17

Your answer seems to be doing the opposite of what I wanted. But thanks for the effort though – vickmwas Mar 02 '17 at 10:48

simulate up when back button is pressed

2 Answers2