AppDelegate 中跳转任意界面

2019独角兽企业重金招聘Python工程师标准>>>

- (UIViewController*)topViewController
{
   return [self topViewControllerWithRootViewController:self.window.rootViewController];
}

- (UIViewController*)topViewControllerWithRootViewController:(UIViewController*)rootViewController
{
   if ([rootViewController isKindOfClass:[UITabBarController class]]) {
       UITabBarController *tabBarController = (UITabBarController *)rootViewController;
       return [self topViewControllerWithRootViewController:tabBarController.selectedViewController];
   } else if ([rootViewController isKindOfClass:[UINavigationController class]]) {
       UINavigationController* navigationController = (UINavigationController*)rootViewController;
       return [self topViewControllerWithRootViewController:navigationController.visibleViewController];
   } else if (rootViewController.presentedViewController) {
       UIViewController* presentedViewController = rootViewController.presentedViewController;
       return [self topViewControllerWithRootViewController:presentedViewController];
   } else {
       return rootViewController;
   }
}

转载于:https://my.oschina.net/u/2536487/blog/601292