ios - iOS - 从代码和情节提要推送 viewController

Question

我有这个代码

 PlaceViewController *newView = [self.storyboard instantiateViewControllerWithIdentifier:@"PlaceView"];
 [self presentViewController:newView animated:YES completion:nil];

而且我可以更改视图，但是当我返回此页面时，我会推送此视图，状态仍然存在。

我试着把这段代码：

[self.navigationController pushViewController:newView animated:YES];

但不做任何事情。

谢谢

Answer 1

目标-C：

PlaceViewController *newView = [self.storyboard instantiateViewControllerWithIdentifier:@"storyBoardIdentifier"];
[self.navigationController pushViewController:newView animated:YES];

请注意以下几点，

1. 您的故事板标识符是正确的。

2. 根视图有导航控制器。

迅速：

let newView = self.storyboard?.instantiateViewController(withIdentifier: "storyBoardIdentifier") as! PlaceViewController
self.navigationController?.pushViewController(newView, animated: true)

Answer 2

对于情节提要，您应该performSegueWithIdentifier像这样使用：

 [self performSegueWithIdentifier:@"identifier goes here" sender:self];

Answer 3

利用：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"STORYBOARD_NAME" bundle:nil];
PlaceViewController *newView = [storyboard instantiateViewControllerWithIdentifier:@"PlaceView"];
[self presentViewController:newView animated:YES completion:nil];

或者：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"STORYBOARD_NAME" bundle:nil];
PlaceViewController *newView = [storyboard instantiateViewControllerWithIdentifier:@"PlaceView"];
[self.navigationController pushViewController:newView animated:YES];

Answer 4

Swift 3.x

let viewController = storyboard?.instantiateViewController(withIdentifier: "storyboardIdentifier") as! UIViewController
navigationController?.pushViewController(viewController, animated: true)

Answer 5

默认情况下，Xcode 创建一个标准的视图控制器。我们首先将视图控制器更改为导航控制器。选择只需在菜单中选择“编辑器”，然后选择“嵌入”，然后选择“导航控制器” 第 1 步。选择主故事板 第 2 步。单击 Xcode 应用程序顶部的“编辑器”。第 3 步。点击“嵌入”

Xcode 自动将 View Controller 与 Navigation Controller 一起嵌入。