第十五篇、OC_同一个View实现两个手势响应

#pragma mark-UIGestureRecognizerDelegate Methods
// 只要实现这个方法，就可以实现两个手势同时响应
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:

(UIGestureRecognizer *)otherGestureRecognizer {

    return YES;
}