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;
}