android 处理双击事件

捕捉View的双击事件，用GestureDetector

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首先类要实现接口OnGestureListener

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           ScrollView scrollView = (ScrollView) findViewById(R.id.scroll_layout);        scrollView.setOnTouchListener(new View.OnTouchListener()        {                        public boolean onTouch(View v, MotionEvent event)            {                                return gestureScanner.onTouchEvent(event);            }        });