How to pass value on Button click (Fragment 1) to onCreateView (Fragment 2)?

Question

I have 2 Fragments. When I click a button in Fragment 1 here what I do:

1. I set the variable String title = "Lady Gaga".
2. I will show the Fragment 2.

When the Fragment 2 is shown, I want to display the title text.

How to do it?

Answer 1

you can use bundles to pass data :

            Bundle data = new Bundle();
            data.putString("title", "my title");
            Fragment fragment2 = new Fragment2();
            fragment2.setArguments(data);
            FragmentTransaction agm_ft = getSupportFragmentManager()
                    .beginTransaction();
            agm_ft.replace(R.id.frag_containor, fragment2,
                    "agm_frag");
            agm_ft.addToBackStack(null);
            agm_ft.commit();

and get it back on next fragment:

    Bundle getData = getArguments();
    title = getData.getString("title");

Answer 2

1) Create a Interface

public interface TitleChangeListener {
    public void onUpdateTitle(String title);
}

2) in Fragment 2

Create a public method

public void setTitle(String title){
    //Do Somthing
   }

3)Let Activity implement Interface TitleChangeListener and override onUpdateTitle

 public void onUpdateTitle(String title){
  fragment2.setTitle(title);
 }

4) In Button onClickListner , 1st Fragment

   TitleChangeListener listener=(TitleChangeListener)getActivity();
   listener.onUpdateTitle("Lady Gaga");

Answer 3

For getting string from one fragment to another you have to use bundles and set them to as arguments like :

//on button click

String title = "Lady Gaga";

        Fragment fr = new Final_Categories_Fragment();
        Bundle b = new Bundle();

        b.putString("title", title);
        fragmentManager.beginTransaction()

                .add(R.id.list_frame, fr, "last").commit();
        fr.setArguments(b);

//Now on another fragment you have to get this argument 
@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

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

    String  title = getArguments().getString("title");
    ...
        return rootView;
    }