如何在Android中实现双击以进行表面视图 [英] How to implement double tap for surface view in android

问题描述

请说明如何使用手势检测器在Android中实现 SurfaceView 的双击.有人可以提供代码示例吗?

Please tell how to implement double tap for SurfaceView in Android using gesture detector. Can anybody provide code example?

推荐答案

您可以尝试以下操作..实际上，我对此进行了测试，并且效果很好:

You could try following.. actually i tested this and it works pretty well:

1)扩展 GestureDetector.SimpleOnGestureListener 并覆盖它的 onDoubleTap()方法:

1) Extend GestureDetector.SimpleOnGestureListener and override it's onDoubleTap() method:

    class DoubleTapGestureDetector extends GestureDetector.SimpleOnGestureListener {

        @Override
        public boolean onDoubleTap(MotionEvent e) {
            Log.d("TAG", "Double Tap Detected ...");
            return true;
        }

    }

2)实例化 GestureDetector :

final GestureDetector mGesDetect = new GestureDetector(this, new DoubleTapGestureDetector());

3)在 SurfaceView 上设置 OnTouchListener ，覆盖其 onTouch()方法并调用<您的 GestureDetector 对象上的code> onTouchEvent():

3) Set an OnTouchListener on your SurfaceView, override its onTouch() method and call the onTouchEvent() on your GestureDetector object:

    surfview.setOnTouchListener(new OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            mGesDetect.onTouchEvent(event);
            return true;
        }
    });

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