Question

您好，我使用此代码只需使用代码并且没有segue就可以进入新的控制器。

    UIStoryboard * mainstoryb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
UIViewController * vc = [mainstoryb instantiateViewControllerWithIdentifier:@"online_shop"];
[self presentViewController:vc animated:YES completion:nil];

如何在下一个视图中显示导航栏或标题栏？

Answer 1

您需要按如下方式呈现NavigationController：

 UIViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:ContactUSVCID];
 UINavigationController *objNav = [[UINavigationController alloc] initWithRootViewController:vc];
[self presentViewController:objNav animated:YES completion:nil];

Answer 2

如果你想要导航栏，那么你必须推不存在

  UIStoryboard *storyboard = [UIStoryboard storyboardWithName:storyboardName bundle: nil];


      SecondViewController * vc = [storyboard instantiateViewControllerWithIdentifier:@"ViewControllerB"];
    /********if dont have navigation bar***********/
 UINavigationController *initialNavigationController = (UINavigationController*)[self.storyboard instantiateViewControllerWithIdentifier:@"HomeNavCtrl_id"];
[self presentViewController:initialNavigationController animated:YES completion:nil];

/ **********别的************* /

    [[self navigationController] pushViewController:vc animated:YES];

Answer 3

将导航控制器和故事板ID中的ViewController嵌入导航控制器，然后使用此代码

  UINavigationController *initialNavigationController = (UINavigationController*)[self.storyboard instantiateViewControllerWithIdentifier:@"HomeNavCtrl_id"];
[self presentViewController:initialNavigationController animated:YES completion:nil];

Answer 4

如果您提供视图控制器，它将始终全屏显示。试试这个

UIStoryboard * mainstoryb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
UIViewController * vc = [mainstoryb instantiateViewControllerWithIdentifier:@"online_shop"];
[self presentViewController:navigationController animated:YES completion:nil];

导航栏在presentViewController之后没有显示

4 个答案: