Communicating between a fragment and an activity - best practices

Question

This question is mostly to solicit opinions on the best way to handle my app. I have three fragments being handled by one activity. Fragment A has one clickable element th

Answer 1

It is implemented by a Callback interface:

First of all, we have to make an interface:

public interface UpdateFrag {
     void updatefrag();
}

In the Activity do the following code:

UpdateFrag updatfrag ;

public void updateApi(UpdateFrag listener) {
        updatfrag = listener;
}

from the event from where the callback has to fire in the Activity:

updatfrag.updatefrag();

In the Fragment implement the interface in CreateView do the following code:

 ((Home)getActivity()).updateApi(new UpdateFrag() {
        @Override
        public void updatefrag() {
              .....your stuff......
        }
 });