iOS 之 获取View所在控制器

1. UIResponder

UIViewController *uvc;
    UIResponder* nextResponder = [self.superview.superview.superview nextResponder];

    if ([nextResponder isKindOfClass:[UIViewController class]]) {
        uvc = (UIViewController*)nextResponder;
    }

2.获取当前屏幕中present出来的viewcontroller

- (UIViewController *)getPresentedViewController
{
    UIViewController *appRootVC = [UIApplication sharedApplication].keyWindow.rootViewController;
    UIViewController *topVC = appRootVC;
    if (topVC.presentedViewController) {
        topVC = topVC.presentedViewController;
    }

    return topVC;
}