Set toolbar title

Question

I am trying to set my toolbar title like so:

public class StatisticsPage extends Fragment  {

    public StatisticsPage(){}
    private FragmentTabHost mTabHost;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.statistics_pagelayout, container, false);

        Spinner spinner = (Spinner) rootView.findViewById(R.id.statsSpin);
        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(getActivity(),
                R.array.statspage, R.layout.dropdown_item);
        spinner.setAdapter(adapter);
        getSupportActionBar().setTitle("My title");

        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {

                switch (position) {
                    case 0:
                        break;
                    case 1:
                        // do whatever stuff you wanna do here
                        Fragment Fragment_one;
                        FragmentManager man= getActivity().getSupportFragmentManager();
                        FragmentTransaction tran = man.beginTransaction();
                        Fragment_one = new BreweryStatistics();
                        tran.replace(R.id.main, Fragment_one);//tran.
                        tran.addToBackStack(null);
                        tran.commit();
                        break;
                    case 2:
                        Fragment Fragment_two;
                        FragmentManager mantwo= getActivity().getSupportFragmentManager();
                        FragmentTransaction trantwo = mantwo.beginTransaction();
                        Fragment_two = new StyleStatistics();
                        trantwo.replace(R.id.main, Fragment_two);//tran.
                        trantwo.addToBackStack(null);
                        trantwo.commit();
                        break;
                    case 3:
                        Fragment Fragment_three;
                        FragmentManager manthree= getActivity().getSupportFragmentManager();
                        FragmentTransaction tranthree = manthree.beginTransaction();
                        Fragment_three = new TasteStatisticsPage();
                        tranthree.replace(R.id.main, Fragment_three);//tran.
                        tranthree.addToBackStack(null);
                        tranthree.commit();
                        break;
                }
            }

            @Override
            public void onNothingSelected(AdapterView<?> parentView) {
                // your code here
            }
        });

        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
        String userName = prefs.getString("userName", null);
        String userID = prefs.getString("userID", null);
        String url = "myURL";
        String userURLComp = "u=" + userID;

        url = url + userURLComp ;

        new getBasicStats(getActivity()).execute(url);

        return rootView;
    }
}

Basically this line in the above code does not work in the fragment:

getSupportActionBar().setTitle("My title");

Also How can I stop my app title from showing up in the app bar? I would also like to make the title white when I can set it.

Belter

Try adding getActivity() before the getSupportFragment – Superposition

still says cannot resolve method getsuuportactionbar – Belter

What about? ((ActionBarActivity)getActivity()).getSupportActionBar().setTitle("Home"); – Superposition

worked perfectly, can I theme it white some how? – Belter

I would ask a separate question for that. I'm going to answer this question instead of comments – Superposition

Answer 1

Change it to

((AppCompatActivity)getActivity()).getSupportActionBar().setTitle("Home");

You needed to tell the activity it is an AppCompatActivity.

Then you use getActivity() to get the main activity since you are in a fragment.

Then just set the title as usual.

Superposition

if you happen to know how to change the color, i just posted that question too – Belter

While this answer is probably correct and useful, it is preferred if you include some explanation along with it to explain how it helps to solve the problem. This becomes especially useful in the future, if there is a change (possibly unrelated) that causes it to stop working and users need to understand how it once worked. – Ickes

Sorry Kevin, I'll add more. Should've known. – Superposition

is there a way to do this in an async task? – Belter

The easiest and simplest answer – Clio

Thanks, very easiest way – Bridgetbridgetown

Answer 2

In kotlin

(activity as? AppCompatActivity)?.supportActionBar?.title = "title"

Edit: Added null safe operator ? to avoid NullPointer in case ActionBar not available

Burghley

Answer 3

Actually you can just do the following:

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    getActivity().setTitle("My title");
}

I make the change in onActivityCreated because the Activity may have not been fully initialized yet in onCreateView. In onActivityCreated there is no risk of getting a NullPointerException.

NOTE: I am using an AppCompatActivity with a Toolbar and v4 Fragments associated to it.

Gena

Where is onActivityCreated? In the main activity or the fragment? I have a list in my main activity and when I click on a list item a fragment is opened and the toolbar title should change. My click handler is in the fragment; does it need to be moved to the activity? – Digged

@HEATH3N onActivityCreated is meant for the fragments, when onActivityCreated is called on the fragment, it means that its parent activity is fully initialized (no risk of null pointers). – Gena

Answer 4

Kotlin set title from resources

Activity:

setTitle(R.string.some_title)

Fragment:

activity?.setTitle(R.string.some_title)

Presbyterial

Answer 5

The best and easiest way to do this, is to go to Android Manifest and change the label within the Activity section. This is what's responsible for labelling the Activity along the toolbar. This saves you writing lines of code in the class file.

Anselmo

Answer 6

In Kotlin:

in onCreate method put title = "Some Text Here"

Bledsoe

Answer 7

This worked for me inside an activity. I haven't tried it inside fragment.

this.setTitle("welcome")
ActiviryName.this.setTitle("welcome");

Polypoid

While this code may answer the question, providing additional context regarding how and/or why it solves the problem would improve the answer's long-term value. Also, you have a typo in Activity. BTW, how is this different from the other answers? – Ferrocyanide