滑动冲突处理

1.外部拦截法

public boolean onInterceptTouchEvent(MotionEvent event) {
        boolean intercepted = false;
        int x = (int) event.getX();
        int y = (int) event.getY();
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                intercepted = false;
                break;
            case MotionEvent.ACTION_MOVE:
                if (父容器需要当前点击事件) {
                    intercepted = true;
                } else {
                    intercepted = false;
                }
                break;
            case MotionEvent.ACTION_UP:
                intercepted = false;
                break;
            default:
                break;
        }
  			mLastXIntercept = x;
  			mLastYIntercept = y;
        return intercepted;
    }

2.内部拦截法

    public boolean dispatchTouchEvent(MotionEvent event) {
        int x = (int) event.getX();
        int y = (int) event.getY();
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                parent.requestDisallowInterceptTouchEvent(true);
                break;
            case MotionEvent.ACTION_MOVE:
                int deltaX = x - mLastX;
                int deltaY = y - mLastY;
                if (父容器需要此类点击事件)){
                parent.requestDisallowInterceptTouchEvent(false);
            }
            break;
            case MotionEvent.ACTION_UP:
                break;
            default:
                break;
        }
        mLastX = x;
        mLastY = y;
        return super.dispatchTouchEvent(event);
    }