CODEWITHSUNDEEP
android-fragmentsandroid-viewpager
BaDo
BaDo

Reputation: 578

Viewpager receive notification when view in fragment is clicked

I have ViewPager with some Fragments, In one Fragment (in that ViewPager) I have a button, I want to update some information at Activity (which contains that ViewPager) by click the button. Anybody help me?

Upvotes: 1

Views: 69

Answers (1)

Akbarsha
Akbarsha

Reputation: 2558

The best option is to use interface

Create the following Communicator.java

public interface Communicator {
    public void respond(int i);
}

Implement this Communicator in your MainAcitvity

And create a instance of this Communicator in your fragment like this

public class FirstFragment extends Fragment implements OnClickListener {

    private Communicator com;

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

        com = (Communicator) getActivity();
        btn.setOnClickListener(this);
        }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
        case R.id.btn:
            com.respond(1);
            break;
        }
    }

Whenever you click that button it sends the int to the method which is residing inside the MainActivity

which would look like following

public class MainActivity extends FragmentActivity implements Communicator{

    @Override
        public void respond(int i) {
            int RECEIVED_VARIABLE = i;

        }}

    }

Here I'm receiving an int . You can use anything which you want

I hope this would help

Upvotes: 4

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