Passing objects between fragments

Question

Iam using build-in Navigation drawer activity with three fragment menus, I want to communicate over those fragments means wants to pass data from one to another. And I found there is a three possible way to communicating with fragments. Also I have understood clearly that the fragment never communicate directly.

• Using Interface
• Global class(extends Application class)
• finally Using bundles

And now my question is which is the best way to communicate with fragments, currently Iam using second method which is I put(getter&setter class) all those object to the Globalized objects which extends Application Class. Is this the right approach or not??

Answer 1

You can implement Serializable in your Object class and then pass it simply using bundles. I'm assuming you're launching the second_fragment from your first_fragment.

In your first Fragment:

FragmentTransaction ft =  getActivity().getSupportFragmentManager().beginTransaction();
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
Fragment2 fragment2 = new Fragment2();

Bundle bundle = new Bundle();
YourObj obj = SET_YOUR_OBJECT_HERE;
bundle.putSerializable("your_obj", obj);
fragment2.setArguments(bundle);
ft.replace(android.R.id.content, fragment2);
ft.addToBackStack(null);
ft.commit();

In Fragment two:

Bundle bundle = getArguments();
YourObj obj= (YourObj) bundle.getSerializable("your_obj");

EDIT

To Serialize your object, simply implement Serializable in your Object class.

If your Object class is YourObj.class

public class YourObj implements Serializable {
    int id;
    String name;

    // GETTERS AND SETTERS
}