Sending data from nested fragments to parent fragment

Question

I have a Fragment FR1 that contains several Nested Fragments; FRa, FRb, FRc. These

Answer 1

Too late to ans bt i can suggest create EditText object in child fragment

EditText tx;

in Oncreateview Initialize it. then create another class for bridge like

public class bridge{
public static EditText text = null; 
}

Now in parent fragment get its refrence.

EditText childedtx = bridge.text;

now on click method get value

onclick(view v){
childedtx.getText().tostring();
}

Tested in my project and its work like charm.

Answer 2

You can use share data between fragments.

public class SharedViewModel extends ViewModel {
    private final MutableLiveData<Item> selected = new MutableLiveData<Item>();

    public void select(Item item) {
        selected.setValue(item);
    }

    public LiveData<Item> getSelected() {
        return selected;
    }
}


public class MasterFragment extends Fragment {
    private SharedViewModel model;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        model = ViewModelProviders.of(getActivity()).get(SharedViewModel.class);
        itemSelector.setOnClickListener(item -> {
            model.select(item);
        });
    }
}

public class DetailFragment extends Fragment {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SharedViewModel model = ViewModelProviders.of(getActivity()).get(SharedViewModel.class);
        model.getSelected().observe(this, item -> {
           // Update the UI.
        });
    }
}

More Info ViewModel Architecture