Onclick Event Is Not Triggered For Image Button Placed On Image View In The Cardview

I have placed image button on top of image view which is inside a CardView. I want to trigger some action when user clicks on Image button. However first problem is when I get the

Solution 1:

try it (rootView added):

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState)
{
    View rootView = inflater.inflate(R.layout.item_row, container, false);
    ImageButton imgBtn = (ImageButton) rootView.findViewById(R.id.favIcon);
    imgBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            addItemToBag(v);
        }
    });
    return rootView;
}