网上搜索的大部分根本没法用，不知道为什么还那么多篇内容一样
//获取当前视图的控制器
- (UIViewController *)currentViewController {
for (UIView* next = [self superview]; next; next = next.superview) {
UIResponder *nextResponder = [next nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]]) {
return (UIViewController *)nextResponder;
}
}
return nil;
}