android - RecyclerView: how to catch the onClick on an ImageView?

Question

I have an ImageView in CardViews of my RecyclerView. I would like to catch the onClick on the ImageView, like I already did with the ListView. So, in the public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) I tried with:

 myViewHolder.imageView.setClickable(true);
 myViewHolder.imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               Log.d("TEST", "Clicked");
            }

but this was totally ignored. The following code is working:

 myViewHolder.imageView.setImageResource(R.drawable.star_yellow);

What can I do?

Answer 1

Here's what I do in my project.

1. Have an interface class somewhere in your project:

   public interface RecyclerViewClickListener {
   
       void onRowClicked(int position);
       void onViewClicked(View v, int position);
   }
   

2. In your RecyclerView.Adapter class, add this interface as a field and pass it to adapter via constructor:

   public class YourRecAdapter extends RecyclerView.Adapter<YourRecAdapter.SimpleViewHolder>{
   
       private RecyclerViewClickListener listener;
   
       public YourRecAdapter(RecyclerViewClickListener listener){
           this.listener = listener;
       }
   
       public static class SimpleViewHolder extends RecyclerView.ViewHolder {
   
           public SimpleViewHolder(View itemView, final RecyclerViewClickListener listener) {
               super(itemView);
   
               // find view ids here
   
               itemView.setOnClickListener(new View.OnClickListener() {
                   @Override
                   public void onClick(View v) {
                       if(listener != null)
                           listener.onRowClicked(getAdapterPosition());
                   }
               });
   
               someViewholderView.setOnClickListener(new View.OnClickListener() {
                   @Override
                   public void onClick(View v) {
                       if(listener != null)
                           listener.onViewClicked(v, getAdapterPosition());
                   }
               });
           }
       }
   }
   

3. Implement the interface in your Activity / Fragment:

   public class YourFragment extends Fragment implements RecyclerViewClickListener {
   
      @Override
      public void onViewClicked(View v, int position) {
          if(v.getId == R.id.yourDesiredView){
              // Do your stuff here
          }
      }
   
      @Override
      public void onRowClicked(int position) {
          // Clicked entire row
      }
   }