CODEWITHSUNDEEP
androidandroid-fragmentsandroid-actionbar
Jeison Duran
Jeison Duran

Reputation: 358

Change ActionBar title using Fragments

So my problem is that when the user clicks the contact, that takes me to the other fragment but the title on the action bar still with the favorite title and not the new one, how to change that title?

I have already try to use setTitle on the click method but still not working.

Upvotes: 22

Views: 44892

Answers (6)

Diego Farias
Diego Farias

Reputation: 141

Em Kotlin você pode usar o seguinte código nas funções: onCreateView, onStart e onResume.

override fun onStart() {
   super.onStart()

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

Ou se preferir, pode criar uma função de extensão e chamar dentro do Fragment.

import androidx.appcompat.app.AppCompatActivity
import androidx.fragment.app.Fragment

fun Fragment.setTitle(title: String) {
    (activity as? AppCompatActivity)?.supportActionBar?.title = title
}

Chamada da função de extensão dentro do Fragment.

class StartFragment : Fragment() {

   override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
   ): View? {
       return inflater.inflate(R.layout.fragment_start, container, false)
   }

   override fun onStart() {
       super.onStart()

       this.setTitle(getString(R.string.titulo))
   }
}

Upvotes: 4

sr1994
sr1994

Reputation: 11

for java use
to change the title of the toolbar

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

    ((MainActivity) getActivity()).getSupportActionBar().setTitle("hello word");

    View root = inflater.inflate(R.layout.fragment_home, container, false);
    return root;
}

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

Upvotes: 1

Sameer Shelar
Sameer Shelar

Reputation: 196

NOT_A_PROGRAMMER's answer is right but when you come back to the previous activity or fragment the Title remains the same.

Here is my solution for that.

  • Overriding OnPause() or OnStopMethod in the fragment and you can use the same method " ((MainFragmentActivity) getActivity()).setActionBarTitle("Your title"); " to set the title of the Activity or Fragment which is present in the backstack.
    @Override
    public void onStop() {
        super.onStop();
        ((MPOSTransactionActivity) getActivity()).setActionBarTitle(getString(//NAME));
    }

Upvotes: 1

Paixols
Paixols

Reputation: 448

If you are using Navigation Components from Android Jetpack. The action bar reads the Label attribute for the fragment name. Not sure if this is a proper fix, but if you change the Label text in the Navigation Editor, it will be read by the supportActionBar that is set up in the Activity hosting the fragments.Navigation Editor Attributes Tab

Upvotes: 11

Shweta Chauhan
Shweta Chauhan

Reputation: 6981

In your fragment 

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

    getActivity().setTitle("Team B");

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

    return rootView;
}

Upvotes: 25

NOT_A_PROGRAMMER
NOT_A_PROGRAMMER

Reputation: 1924

In your activity:

public void setActionBarTitle(String title) {
    getSupportActionBar().setTitle(title);
}

And in your fragment (You can put it onCreate or onResume):

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

    // Set title bar
    ((MainFragmentActivity) getActivity())
            .setActionBarTitle("Your title");

}

Upvotes: 70

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