水平滚动查看检测长preSS [英] Horizontal Scroll View detect long press

问题描述

我有HSV，我想对这个观点很长的点击响应。当我设置它的 onLongClickListener（）它并没有做太多，回调不会被调用。

I have a HSV, and I'd like to respond to a long click on that view. When I set it's onLongClickListener() it doesn't do much, the callback is not being called.

我假设滚动视图消耗与一切 onTouch ，以便它可以处理滚动，但我要如何解决呢？

I assume that the scroll view consumes everything with an onTouch so it could handle the scrolling, but how do I work around it?

推荐答案

您可以用GestureDetector做到这一点。这工作：

You can do this with GestureDetector. This works:

GestureDetector.OnGestureListener listener = new GestureDetector.SimpleOnGestureListener() {
    @Override
    public void onLongPress(MotionEvent e)
    {
        Toast.makeText(TestXmlActivity.this, "LongClick", Toast.LENGTH_SHORT).show();
    }
};

final GestureDetector gestureDetector = new GestureDetector(this, listener);

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

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