我的viewController中有这个动画，用于缩小菜单并向下滑动。-(void)dismissMenuWithAnimation{CGRectoriginalFrame=self.view.frame;[UIViewanimateWithDuration:2animations:^{self.view.frame=CGRectMake(originalFrame.origin.x,originalFrame.origin.y+originalFrame.size.height,originalFrame.size.width,10);}completion:^(BOOLfinish