viewController 跳转传值到 NavigationController

UINavigationController *navVC=[self.storyboard instantiateViewControllerWithIdentifier:@"navPwd"];

ForgotPwdViewController *viewControler = navVC.viewControllers[0];
viewControler.ssdkUser = user;

[self presentViewController:navVC animated:YES completion:nil];

viewController 跳转传值到 NavigationController

原文：http://www.cnblogs.com/yangdahong/p/5801979.html