IOS 获取view的父视图控制器

//获取view的父视图控制器

• (UIViewController )viewController {
  for (UIView next = [self superview]; next; next = next.superview)
  {
  UIResponder *nextResponder = [next nextResponder];
  if ([nextResponder isKindOfClass:[UIViewController class]]) {
  return (UIViewController *)nextResponder;
  }
  }
  return nil;
  }