public class NoRollSwipeMenuListView extends SwipeMenuListView {    private GestureDetector mGestureDetector;    public NoRollSwipeMenuListView(Context context) {        super(context);        mGestureDetector = new GestureDetector(context, onGestureListener);    }    public NoRollSwipeMenuListView(Context context, AttributeSet attrs) {        super(context, attrs);        mGestureDetector = new GestureDetector(context, onGestureListener);    }    public NoRollSwipeMenuListView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);        mGestureDetector = new GestureDetector(context, onGestureListener);    }    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);        super.onMeasure(widthMeasureSpec, expandSpec);    }    @Override    public boolean onTouchEvent(MotionEvent ev) {        boolean b = mGestureDetector.onTouchEvent(ev);//        LogUtil.w("onTouchEvent", "mGestureDetector.onTouchEvent(ev)->" + b);        return super.onTouchEvent(ev);    }    private GestureDetector.OnGestureListener onGestureListener = new GestureDetector.SimpleOnGestureListener() {        //distanceX 左右滑动距离,左滑动正值,右滑动负值        //distanceY 上下滑动距离,上滑动正值,下滑动负值        @Override        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {            if (Math.abs(distanceY) >= Math.abs(distanceX)) {//上下滑动距离大于左右滑动距离,当作上下滑动//                LogUtil.w("onScroll", "distanceX=" + distanceX + ":distanceY=" + distanceY);//                LogUtil.w("onScroll", "true");                //上下滑动不做任何操作,在这里父ScrollView已经交出onTouch权限,否则如果权限在父ScrollView的话这里接收不到事件                //所以执行到这里是因为下面的setParentScrollAble(false);已经执行过了                return true;            }            //当滑动NoRollSwipeMenuListView的时候，让父ScrollView交出onTouch权限，也就是让父ScrollView停住不能滚动            setParentScrollAble(false);//            LogUtil.w("onScroll", "false");            return false;        }    };    /**     * 是否把滚动事件交给父ScrollView     *     * @param flag     */    private void setParentScrollAble(boolean flag) {        //这里的parentScrollView就是NoRollSwipeMenuListView外面的那个ScrollView//        LogUtil.w("setParentScrollAble", "flag->" + flag);        getParent().requestDisallowInterceptTouchEvent(!flag);    }}