Btukfyl

Good morning friends,
My problem is the following. I have a cardview with a button, i catch the button event in the recyclerview, but I would like to catch the button event in the fragment that contains the recyclerview.

@Override

public void onBindViewHolder(@NonNull final MyViewHolder myViewHolder, final int i) {





    myViewHolder.imagen.setImageResource(mData.get(i).getImage());

    myViewHolder.title.setText(mData.get(i).getTitel());







    myViewHolder.button.setOnClickListener(new View.OnClickListener() {

        @Override

        public void onClick(View v) {

            Toast.makeText(context,"ok"+i,Toast.LENGTH_SHORT).show();





        }

    });







}

I need to use the event here.

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

                         Bundle savedInstanceState) {



    view = inflater.inflate(R.layout.fragment_form4, container, false);











    list = new ArrayList<>();

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));





    RecyclerView recyclerView=(RecyclerView)view.findViewById(R.id.form4_recyclerview);

    RecyclerViewAdapterFotoForm4 adapterFotoForm4=new RecyclerViewAdapterFotoForm4(getContext(),list);

    recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

    recyclerView.setAdapter(adapterFotoForm4);









    return view;

}

Thanks in advance.

You can have a callback(interface) to communicate between adapter and fragment. For example consider following callback (you can have it as a separate file):

public interface OnClickCallback {

    void onClicked(int position);

}

In your fragment implement it so you will have following override method

@Override

public void onClicked(int position){

// you will be retriving the clicked position 

}

In your fragment create an instance OnClickCallback and pass it to adapter so that in on setOnClickListener method of adapter you can communicate with fragment using callback.

private OnClickCallback onClickCallback;



@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

                         Bundle savedInstanceState) {



    view = inflater.inflate(R.layout.fragment_form4, container, false);



    onClickCallback = this;







    list = new ArrayList<>();

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));

    list.add(new POJOcarviewFotoForm4(R.drawable.ic_person_black_24dp,"Picture"));





    RecyclerView recyclerView=(RecyclerView)view.findViewById(R.id.form4_recyclerview);

    RecyclerViewAdapterFotoForm4 adapterFotoForm4=new RecyclerViewAdapterFotoForm4(getContext(),list);

    recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

    recyclerView.setAdapter(adapterFotoForm4, onClickCallback);



    return view;

}

There in adapter constructor :

public Adapter(List<String> yourList, OnClickCallback itemClickCallback) {

        this.yourList = yourList;

        this.itemClickCallback = itemClickCallback;

    }

In setOnClickListener you can call it as follows :

myViewHolder.button.setOnClickListener(new View.OnClickListener() {

        @Override

        public void onClick(View v) {

           itemClickCallback.onClicked(position);

        }

    });