How to delete item from RecycleView when that recycle is on Fragment?

Question

I try to delete one Item from my RecyclerView with OnDeleteData. but i have an error on Adapter file. (if i use this method for Activity its fine , but i change my activity to fragments)

Adapter File :

public class menuUserAdapter extends RecyclerView.Adapter<menuUserAdapter.ViewHolder> {
public interface dataListener{
    void onDeleteData(Transaksi transaksi , int position);
}
dataListener listener;

public menuUserAdapter(ArrayList<Transaksi> listtransaksi, Context context) {
    this.listtransaksi = listtransaksi;
    //this.listuser = listuser;
    this.context = context;
    listener = (homeFragment) context;
}
public void onBindViewHolder(@NonNull ViewHolder holder, final int position) {
   holder.listitem.setOnLongClickListener(new View.OnLongClickListener() {
       public boolean onLongClick(final View v) {
          listener.onDeleteData(listtransaksi.get(position),position);
        }
   };
 }
}

on Fragments file :

  public class homeFragment extends Fragment implements menuUserAdapter.dataListener {


public void onDeleteData(Transaksi transaksi, int position) {
    if(reference != null){
        reference.child("transaksi").child(transaksi.getKey()).removeValue().addOnSuccessListener(new OnSuccessListener<Void>() {
            @Override
            public void onSuccess(Void aVoid) {
                Toast.makeText(getActivity(), "Data Berhasil Dihapus", Toast.LENGTH_SHORT).show();
            }
        });
      }
  }


}

listener = (homeFragment) context; i have erorr on this line

Please help me

Answer 1

As your fragment is implementing the interface so initialize it with the fragment, context is the Activity context that holds the homeFragment.

public menuUserAdapter(ArrayList<Transaksi> listtransaksi, Context context, homeFragment fragment) {
    this.listtransaksi = listtransaksi;
    this.context = context;
    listener = fragment;
}

in your fragment

menuUserAdapter adapter = menuUserAdapter(listtransaksi, getActivity(), this);

Hope it helps you.