Set a title in Toolbar from fragment in Android

Question

I have been using the latest Toolbar from AppCompatv7 lib.I have placed a textview in the ToolBar ViewGroup And I want to set a title into this Textview from the fragment in my activity.In case of a custom action bar ((ActionBarActivity)getActivity).setcustomView(..) would have done the job.But due to use of this ToolBar I am not able to use that.Also I have implemented a method in my BaseActivity that is inherited by all Activities.This BaseActivity contains my method to initialize a sliding drawer to the left.I have to initialize the initDrawerLayout() method in activity else the drawer would not be initialized.And if I initialize it in fragment its giving me all empty results,neither the toggle button for drawer and nor is the custom title getting set.

This is my initDrawer code..

public void initDrawerLayout(String toolbar_text) {
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerRelative = (RelativeLayout) findViewById(R.id.drawer_relative);
        if (mDrawerLayout != null) {
            findViewById(R.id.drawer_btn_a).setOnClickListener(this);
            findViewById(R.id.drawer_btn_b).setOnClickListener(this);
            findViewById(R.id.drawer_btn_c).setOnClickListener(this);
            findViewById(R.id.drawer_btn_d).setOnClickListener(this);
            findViewById(R.id.drawer_btn_e).setOnClickListener(this);
            findViewById(R.id.drawer_btn_f).setOnClickListener(this);
            findViewById(R.id.drawer_btn_g).setOnClickListener(this);
            findViewById(R.id.drawer_btn_h).setOnClickListener(this);
            findViewById(R.id.drawer_btn_i).setOnClickListener(this);
            findViewById(R.id.drawer_btn_j).setOnClickListener(this);
            findViewById(R.id.drawer_btn_k).setOnClickListener(this);
            findViewById(R.id.drawer_btn_l).setOnClickListener(this);
            findViewById(R.id.my_layout).setOnClickListener(this);





            Toolbar toolbar = (Toolbar) findViewById(R.id.my_awesome_toolbar);
            toolbar.setBackground(getResources().getDrawable(R.drawable.icn_actionbar_background));
            TextView mTitle = (TextView) toolbar.findViewById(R.id.toolbar_title);
            mTitle.setText(toolbar_text);
            mTitle.setTypeface(Typeface.DEFAULT_BOLD);
            if (toolbar != null) {
                setSupportActionBar(toolbar);
                 getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            }
            toolbar.setNavigationIcon(R.drawable.ic_drawer);

             mDrawerToggle = new ActionBarDrawerToggle(
                    this,  mDrawerLayout, toolbar,
                    R.string.drawer_open, R.string.drawer_close
                );
                mDrawerLayout.setDrawerListener(mDrawerToggle);


            toolbar.setNavigationOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    if (mDrawerLayout.isDrawerOpen(Gravity.LEFT)) {
                        mDrawerLayout.closeDrawer(Gravity.LEFT);
                    } else {
                        mDrawerLayout.openDrawer(Gravity.LEFT);
                    }
                }
            });
            mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
                    GravityCompat.START);

            mDrawerLayout.setScrimColor(getResources().getColor(
                    android.R.color.transparent));
            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            getSupportActionBar().setHomeButtonEnabled(true);
            getSupportActionBar().setDisplayShowTitleEnabled(false);

        }
    }

And this my code in the fragment..

((FirstActivity) getActivity()).initDrawerLayout(mFirst.name); where mFirst is a object of class Person

and the toolbar code..

<android.support.v7.widget.Toolbar
            android:id="@+id/my_awesome_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:minHeight="?attr/actionBarSize">
           <TextView
                android:id="@+id/toolbar_title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:gravity="center"
                android:text="Toolbar Title"
                android:textColor="@color/action_text-color"
                android:textSize="18sp"
                android:textStyle="bold" /> 

            </android.support.v7.widget.Toolbar>

Please help guys..

The one who down voted this..can you please answer the question before downvoting..I have asked this question after quite a lot of searching. — AndroidMech, Nov 24 '14 at 10:34

score 63 · Answer 1 · edited May 28 '22 at 03:38

I do this like this: from the fragment call

getActivity().setTitle("your title");

But where you call it is important, because if each Fragment has it's own title, then one may override the other accidentally, which may be prevented like:

@Override
public void onResume() {
    super.onResume();

    Activity activity = getActivity();
    if (activity != null) {
        activity.setTitle(getString(R.string.my_title));
    }
}

For example, two Fragments of the same Pager can not be in resume-state at the same time.

Also you can "cast", to call any function of your parent Activity like this:

YourActivity mYourActiviy = (YourActivity) getActivity();
mYourActivity.yourActivityFunction(yourParameters);

score 28 · Answer 2 · answered Jul 20 '18 at 09:18

28

In Kotlin.

In fragment:

(activity as YourActivity).supportActionBar?.title = getString(R.string.your_title)

In activity:

setSupportActionBar(toolbar)
supportActionBar?.setDisplayHomeAsUpEnabled(true)
supportActionBar?.setDisplayShowHomeEnabled(true)

answered Jul 20 '18 at 09:18

CoolMind

26,736
15
188
224

score 14 · Answer 3 · answered Mar 14 '18 at 06:19

14

If you have setSupportActionBar in Your Activity then you can easily change the toolbar title from your fragment

((YourActivity) getActivity()).getSupportActionBar().setTitle("Your Title");

answered Mar 14 '18 at 06:19

ANUJ GUPTA

905
13
22

Steffen · Accepted Answer · 2015-02-25T14:00:44.977

12

To allow a Fragment to communicate up to its Activity (to set your Toolbar Title), you can define an interface in the Fragment class and implement it within the Activity as described here: Communicating with Other Fragments.

edited Feb 25 '15 at 14:00

answered Dec 05 '14 at 08:22

Steffen

2,197
2
24
38

score 10 · Answer 5 · edited Dec 19 '17 at 08:06

10

The answer is writen below in the oncreateview method of fragments.

getActivity().setTitle("your name");

edited Dec 19 '17 at 08:06

Derlin

9,572
2
32
53

answered Aug 08 '16 at 14:15

Rahul Nagane

131
1
7

score 7 · Answer 6 · edited Aug 29 '19 at 17:42

You can create Interface inside the Fragment. check below:-

public class MyFragment extends Fragment {
    OnMyFragmentListener mListener;

    // Where is this method called??
    public void setOnMyFragmentListener(OnMyFragmentListener listener) {
        this.mListener = listener;
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnMyFragmentListener) {
            mListener = (OnMyFragmentListener) context;
            mListener.onChangeToolbarTitle("My Fragment"); // Call this in `onResume()`
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnFragmentInteractionListener");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }

    @Override
    public void onResume(){
        super.onResume();
        mListener.onChangeToolbarTitle("My Fragment");
    }


    // This interface can be implemented by the Activity, parent Fragment,
    // or a separate test implementation.
    public interface OnMyFragmentListener {
        public void onChangeToolbarTitle(String title);
    }

}

In Activity:-

public class MyActivity extends AppCompatActivity implements MyFragment.OnMyFragmentListener {

    @Override
    public void onChangeToolbarTitle(String title){
        toolbar.setTitle(title);
    }

}

This works for me. :)

Works very well except i'd recommend you just use `onAttach(Context context)` to initialize the `listener` and use `onResume()` to call the listener's methods — Mitch, Aug 29 '19 at 17:00

score 5 · Answer 7 · answered Sep 24 '20 at 20:52

5

This has worked for me, in Kotlin. Put this in your fragment class:

if (activity != null) {
        (activity as MainActivity).supportActionBar?.title = getString(R.string.action_history)
    }

answered Sep 24 '20 at 20:52

kevincodes_

219
4
4

score 4 · Answer 8 · edited Jun 20 '20 at 09:12

If somebody struggles with this problem, this may be useful.

Basically you have 4 options, how to handle that:

use an interface in order to communicate with your activity, or any other convenient method, like an event bus.
you call getActivity().setTitle("Title"), but in this case you need to attach your Toolbar to the ActionBar by calling the setSupportActionBar() in your activity.
You can have a public instance of your Toolbar and access that instance from the fragment.
Finally, if you need the instance of your Toolbar(you may want to do something else with), you can simply get it this way:

Toolbar bar=Toolbar.class.cast(getActivity().findViewById(R.id.toolbar));

Well, the last option would solve the problem only if the Toolbar hasn't been passed to the setSupportActionBar method.

If it has been, then you need to call this method in your activity:

supportActionBar.setDisplayShowTitleEnabled(false),

which will solve the problem.

However, I would suggest to use ButterKnife which will make it a little bit cleaner, here an example:

  Toolbar actionBar=findById(getActivity(),R.id.actionBar);
  actionBar.setTitle("Title");

You know what you are doing. Great answer, thank you. – Emmanuel Aliji Jan 08 '22 at 09:01 — Emmanuel Aliji, Jan 08 '22 at 09:01

score 4 · Answer 9 · answered Oct 17 '19 at 06:50

4

In Kotlin, I use

fun onAttach(...){
..
activity?.title = "My Title"
}

answered Oct 17 '19 at 06:50

Aziz

1,976
20
23

score 3 · Answer 10 · edited Oct 11 '17 at 03:26

3

This work for me :

Toolbar toolbar = (Toolbar) getActivity().findViewById(R.id.id_toolbar);

toolbar.setTitle("New Title");

edited Oct 11 '17 at 03:26

Robert Moskal

21,737
8
62
86

answered Oct 11 '17 at 02:56

Mesah Barus

39
2

score 2 · Answer 11 · answered Sep 20 '16 at 10:46

In your Activity declare the toolbar as public.

public class YourActivity : Activity
{
    public Toolbar toolbar;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        toolbar = .... // initilize your toolbar
    }
}

Then, from your fragment

((YourActivity) getActivity()).toolbar.Title = "Your Title";

score 2 · Answer 12 · edited Jul 25 '17 at 02:54

getSupportFragmentManager().addOnBackStackChangedListener(new FragmentManager.OnBackStackChangedListener() {
            @Override
            public void onBackStackChanged() {
                FragmentManager.BackStackEntry lastBackStackEntry=null;

                int lastBackStackEntryCount = getSupportFragmentManager().getBackStackEntryCount() - 1;
                if(lastBackStackEntryCount >= 0 )
                {
                    lastBackStackEntry = getSupportFragmentManager().getBackStackEntryAt(lastBackStackEntryCount);
                }
                Toast.makeText(MainActivity.this, ""+lastBackStackEntryCount, Toast.LENGTH_SHORT).show();
                if(lastBackStackEntryCount == -1)
                {
                    toolbar.setTitle("");
                    toolbar.setLogo(R.drawable.header_logo);
                }
                else
                {
                    toolbar.setTitle(lastBackStackEntry.getName());
                }
            }
        });

this will help load the title from the backstack tag itself so just need provide the correct tag name also your title of the fragment — Nizam Alam, Jul 25 '17 at 00:15

7RedBits.com · Answer 13 · 2019-01-25T12:44:27.220

2

For me the problem was that for some reason the label was overwritten. I had to change it back to the string resource, in

 navigation.xml

inside the fragment tag;

android:label="@string/android_trivia"

edited Jan 25 '19 at 12:44

answered Jan 24 '19 at 09:15

7RedBits.com

454
6
6

score 1 · Answer 14 · answered Oct 15 '15 at 16:00

1

You can change the title of your toolbar on the event OnAttach, something like this

        var toolbar = activity.FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
        toolbar.Title = "New Title";

answered Oct 15 '15 at 16:00

lagvjjt

19
2

score 1 · Answer 15 · edited Mar 14 '17 at 20:44

1

If you are using a custom toolbar, this will help you:

Toolbar toolbar = (Toolbar) getActivity().findViewById(R.id.toolbar);
toolbar.setTitle("Feedback");

edited Mar 14 '17 at 20:44

Dev-iL

23,742
7
57
99

answered Mar 14 '17 at 12:47

saigopi.me

14,011
2
83
54

3

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. – Dev-iL Mar 14 '17 at 17:07

score 1 · Answer 16 · answered Jun 26 '17 at 11:12

You need to set the title in activity commiting the fragment and return the fragment

getSupportFragmentManager().beginTransaction().replace(R.id.main_fragment, mainFragment).commit();
            toolbar.setTitle("ShivShambhu");
            return contentFragment;

This works for me.

score 1 · Answer 17 · answered Mar 18 '21 at 08:41

Here's one simple solution. In your activity that extends AppCompatActivity, you can do this:

Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

The inside its fragment, you can do this:

((AppCompatActivity) getActivity()).getSupportActionBar().setTitle(title);

Om Prakash Sharma · Answer 18 · 2018-10-30T13:57:06.180

xml

 <android.support.v7.widget.Toolbar
    android:id="@+id/toolbar_detail"
    android:layout_width="match_parent"
    android:layout_height="55dp"
    android:paddingLeft="10dp"
    android:paddingRight="10dp"
    app:contentInsetStart="0dp"
    app:contentInsetStartWithNavigation="0dp"
    android:background="@color/tool_bar_color">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:gravity="center">

        <TextView
            android:id="@+id/toolbar_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textColor="#fff"
            android:textSize="16sp" />

    </LinearLayout>
</android.support.v7.widget.Toolbar>

Find TextView Id from toolbar

if you are using Activity

 TextView mTitle = findViewById(R.id.toolbar_title);
 mTitle.setText("set your title");

if you are using Fragment

 TextView mTitle = view.findViewById(R.id.toolbar_title);
 mTitle.setText("set your title");

Please don't post duplicate answers to multiple questions. Your answers should be tailored to each specific question, and questions that are the same should be flagged as duplicates. — user229044, Oct 06 '17 at 12:36

Set a title in Toolbar from fragment in Android

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