Differentiate Single click and double click of a imageView in android

Question

I have tried the following code to differentiate single click and double click. Single click is ok. When I double click the imageview, code inside both the single click and doub

Answer 1

Here's my code, which seem to work.

import android.content.Context;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.widget.ImageView;

public class MultiTapImageView extends ImageView{

    private GestureDetector gestureDetector;
    private MultiTapImageViewListener mListener;

    public interface MultiTapImageViewListener {

        void onDoubleTap();
        void onSingleTap();

    }

    public MultiTapImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
        gestureDetector = new GestureDetector(context, new GestureListener());

    }

    public void setDoubleTapListener(MultiTapImageViewListener listener){
        mListener = listener;
    }


    @Override
    public boolean onTouchEvent(MotionEvent e) {
        return gestureDetector.onTouchEvent(e);
    }


    private class GestureListener extends GestureDetector.SimpleOnGestureListener {


        @Override
        public boolean onDown(MotionEvent e) {
            return true;
        }
        // event when double tap occurs
        @Override
        public boolean onDoubleTap(MotionEvent e) {
            float x = e.getX();
            float y = e.getY();

            if(mListener != null){
                mListener.onDoubleTap();
            }

            return true;
        }


        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            if(mListener != null){
                mListener.onSingleTap();
            }

            return true;
        }
    }
}