ListView中嵌套HorizontalListView问题_horizontal报错-优快云博客

本文链接：https://blog.youkuaiyun.com/zifeng1203s/article/details/48713847

当ListView中嵌套HorizontalListView时，会出现焦点问题，影响HorizontalListView的滑动体验。通过在ListView的header中添加ViewPager，并设置OnTouchListener，可以避免滑动时失去焦点，从而改善水平滑动的灵敏度。

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ListView中嵌套HorizontalListView问题

在垂直排列的listView中嵌套水平排列的HorizontalListView会产生焦点问题，导致水平滑动不灵敏。

灵感

ListView 添加viewPager为header时，viewPager滑动失去焦点的解决办法

viewPager.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
PointF downP = new PointF();
PointF curP = new PointF();
int act = event.getAction();
if(act == MotionEvent.ACTION_DOWN || act == MotionEvent.ACTION_MOVE || act == MotionEvent.ACTION_UP){
((ViewGroup) v).requestDisallowInterceptTouchEvent(true);
if (downP.x == curP.x && downP.y == curP.y) {
return false;
}
}
return false;
}
});

解决方案

listViewPeople.setOnTouchListener(new OnTouchListener() {
            // touch处理
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                // TODO Auto-generated method stub
                PointF downP = new PointF();
                PointF curP = new PointF();
                int act = event.getAction();
                if (act == MotionEvent.ACTION_DOWN) {
                    downP.y = event.getY();
                    downP.x = event.getX();
                }
                if (act == MotionEvent.ACTION_MOVE) {
                    curP.y = event.getY();
                    curP.x = event.getX();
                }
                if (curP.x != 0 || curP.y != 0) {
                    if ((Math.abs(curP.y - downP.y)) < (Math.abs(curP.x
                            - downP.x))) {
                        ((HorizontalListView) v)
                                .requestDisallowInterceptTouchEvent(true);
                    }
                }
                return false;
            }
        });