获取当前视图UIView的主控件UIViewController

OC

- (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;
}

swift

func nextresponsder(viewself:UIView)->UIViewController{

        var vc:UIResponder = viewself

        while vc.isKind(of: UIViewController.self) != true {

            vc = vc.next!

        }

        return vc as! UIViewController

    }