getActionBar returning null

Question

I have a activity

and I have added

 setSupportActionBar(toolbar);

And I want to display home button on action bar. Home button is from android predefined.

And I am calling this method

getActionBar().setDisplayHomeAsUpEnabled(true);

But when I run the app, it gives that getActionBar retured null

Full code of activity is following

 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

    setSupportActionBar(toolbar);


    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                    . setAction("Action", null).show();
        }
    });



    getActionBar().setDisplayHomeAsUpEnabled(true);

Why getActionBar returning null? thats my question.

You need to use the `getSupportActionBar()` method. – Mike M. Jan 21 '16 at 07:05 — Mike M., Jan 21 '16 at 07:05

score 1 · Answer 1 · answered Jan 21 '16 at 07:06

1

You should try getSupportActionBar()

answered Jan 21 '16 at 07:06

Troy Liu

81
4

sasikumar · Answer 2 · 2016-01-21T07:10:57.003

0

Use in Activity

getSupportActionBar().setDisplayHomeAsUpEnabled(true);

Use in fragment

((ActionBarActivity)getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);

instead of

getActionBar().setDisplayHomeAsUpEnabled(true);

edited Jan 21 '16 at 07:10

answered Jan 21 '16 at 07:05

sasikumar

12,540
3
28
48

On activity I am using `ViewPager` and I am using setDisplayHomeAsUpEnabled on fragment. how can I do this then? – user786 Jan 21 '16 at 07:17

getActionBar returning null

2 Answers2