如何实现doubletap上的ImageView的onclick？ [英] How to implement doubletap on imageview's onclick?

问题描述

我有一个ImageView的。我要开始动画的不同速度的双击和singletap。在doubletap速度快和singletap速度恢复到正常速度。

I have an imageview. I need to start animation with different speed on double tap and singletap. On doubletap speed is fast and on singletap speed is back to normal speed.

我如何可以实现手势的ImageView的onclick？

How can I implement gestures on imageview's onclick?

推荐答案

如果您不希望去自定义图像视图，那么你可以用下面的办法

if you do not wish to go for custom image view then you can use following approach

// class level

GestureDetector gestureDetector;
boolean tapped;
ImageView imageView;

// inside onCreate of Activity or Fragment
gestureDetector = new GestureDetector(getActivity(),new GestureListener());

// --------------------------------------------- -----------------------------------

//--------------------------------------------------------------------------------

public class GestureListener extends
            GestureDetector.SimpleOnGestureListener {

        @Override
        public boolean onDown(MotionEvent e) {

            return true;
        }

        // event when double tap occurs
        @Override
        public boolean onDoubleTap(MotionEvent e) {

            tapped = !tapped;

            if (tapped) {



            } else {



            }

            return true;
        }
    }

// --------------------------------------------- -----------------------------------

//--------------------------------------------------------------------------------

有关ImageView的

for ImageView

imageView.setOnTouchListener(new OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                // TODO Auto-generated method stub
                return gestureDetector.onTouchEvent(event);
            }

        });

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