onclicklistener on the specific item of the recyclerview in android

Question

I am going to ask very basic question, but i am stuck in it for a long time.

after card view there is an recycleview which has 2 images in each row. now i want to create the click listener on the images rather than the recycleview.

the corresponding layout(layout_main.xml) of this activity(MainActivity.java) contain only recyclerview. the elements of each row is in another layout(layout_images.xml). i am getting the images from layout_images.xml and inflate them in the adapter class(Adapter.java).

now how to put action listener on the images only.

secondly, i want to get the image on which i clicked. how to get that. like, when we click on a view we create some method as

public void onClick(View view){
    // some code here
}

where view is the object on which we clicked. in my case how to get the image on which i clicked. using type cast it might be throw an exception when user doesnot click on image.

Answer 1

Multiple onClick events inside a recyclerView:

public static class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {

    public ImageView iconImageView;
    public TextView iconTextView;

    public MyViewHolder(final View itemView) {
        super(itemView);

        iconImageView = (ImageView) itemView.findViewById(R.id.myRecyclerImageView);
        iconTextView = (TextView) itemView.findViewById(R.id.myRecyclerTextView);
        // set click event
        itemView.setOnClickListener(this);
        iconTextView.setOnClickListener(this);
        // set long click event
        iconImageView.setOnLongClickListener(this);
    }

    // onClick Listener for view
    @Override
    public void onClick(View v) {    
        if (v.getId() == iconTextView.getId()) {
            Toast.makeText(v.getContext(), "ITEM PRESSED = " + String.valueOf(getAdapterPosition()), Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(v.getContext(), "ROW PRESSED = " + String.valueOf(getAdapterPosition()), Toast.LENGTH_SHORT).show();
        }
    }


    //onLongClickListener for view
    @Override
    public boolean onLongClick(View v) {    
        final AlertDialog.Builder builder = new AlertDialog.Builder(v.getContext());
        builder.setTitle("Hello Dialog")
            .setMessage("LONG CLICK DIALOG WINDOW FOR ICON " + String.valueOf(getAdapterPosition()))
            .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                }
            });

        builder.create().show();
        return true;
    }
}

To get which item was clicked you match the view id i.e. v.getId() == yourViewItem.getId()