public void setOnScollChangedListener(OnScollChangedListener onScollChangedListener) {  this.onScollChangedListener = onScollChangedListener;}@Overrideprotected void onScrollChanged(int x, int y, int oldx, int oldy) {  super.onScrollChanged(x, y, oldx, oldy);  if (onScollChangedListener != null) {    onScollChangedListener.onScrollChanged(this, x, y, oldx, oldy);  }}public interface OnScollChangedListener {  void onScrollChanged(ObservableScrollView scrollView, int x, int y, int oldx, int oldy);}@Overridepublic boolean onInterceptTouchEvent(MotionEvent ev) {  switch (ev.getAction()) {  case MotionEvent.ACTION_DOWN:    xDistance = yDistance = 0f;    xLast = ev.getX();    yLast = ev.getY();    break;  case MotionEvent.ACTION_MOVE:    final float curX = ev.getX();    final float curY = ev.getY();    xDistance += Math.abs(curX - xLast);    yDistance += Math.abs(curY - yLast);    xLast = curX;    yLast = curY;    /**     * X軸滑動(dòng)距離大于Y軸滑動(dòng)距離，也就是用戶橫向滑動(dòng)時(shí)，返回false，ScrollView不處理這次事件，     * 讓子控件中的TouchEvent去處理，所以橫向滑動(dòng)的事件交由子控件處理， ScrollView只處理縱向滑動(dòng)事件     */    if (xDistance > yDistance) {      return false;    }  }  return super.onInterceptTouchEvent(ev);}}