Android ImageView Gesture / DoubleTap无法解雇 [英] Android ImageView Gesture/DoubleTap not firing

问题描述

好的，所以我有这个设置

Ok, so I have this setup

ScrollView
Horizo​​ntalScrollView
ImageView

ScrollView HorizontalScrollView ImageView

我正在尝试捕获图像视图上的doubleTap ..我的代码如下所示：

I am trying to capture the doubleTap on the Image View.. my code looks like the following:

ImageView iv = (ImageView)findViewById(R.id.ImageViewID);

iv.setImageDrawable(iv.getResources().getDrawable(R.drawable.someimage));
// Gesture detection
detector = new GestureDetector(this,new SimpleOnGestureListener(){

    //new myGestureClass());

    @Override
    public boolean onSingleTapUp(MotionEvent e) {
        // TODO Auto-generated method stub
        System.out.println("SINGLE TAP");
        return false;
    }

    @Override
    public boolean onDoubleTap(MotionEvent arg0) {
        // TODO Auto-generated method stub
        System.out.println("DOUBLE TAP");
        return false;
    }

    @Override
    public boolean onDoubleTapEvent(MotionEvent arg0) {
        // TODO Auto-generated method stub
        System.out.println("DOUBLE TAP EVENT");
        return false;
    }

    @Override
    public boolean onSingleTapConfirmed(MotionEvent arg0) {
        // TODO Auto-generated method stub
        return false;
    }

});

View.OnTouchListener gestureListener = new View.OnTouchListener() {
        public boolean onTouch(View v, MotionEvent event) {
        System.out.println("TOUCH!" +event);
        if (detector.onTouchEvent(event)) {
            return true;                 
        }   
        return false;
        }
    };

iv.setOnTouchListener(gestureListener); 

然而被覆盖的tap方法永远不会被调用... onTouch确实被调用但是detect.onTouchEvent （事件）应该将我的事件绑定到触摸事件，永远不要调用我的overRidden方法....那么，我到底做错了什么？

Yet the overridden tap methods never get called... The onTouch does get called but the detector.onTouchEvent(event) that should be tying my events to the touch event, never ever calls my overRidden methods.... So, what the heck am I am doing wrong?

推荐答案

覆盖onDown方法并返回true。 来源

Override onDown method and return true. Source

希望此帮助。

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