Question

我有这段代码

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

我可以更改视图，但是当我在此页面返回时，我会推送此视图，状态仍然存在。

我尝试输入此代码：

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

但没有做任何事情。

由于

Answer 1

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

检查2件事，

您的故事板标识符是正确的。
根视图有导航控制器。

Answer 2

对于Storyboard，您应该使用performSegueWithIdentifier，如下所示：

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

Answer 3

使用：

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会创建一个标准视图控制器。我们首先将视图控制器更改为导航控制器。选择Simply选择菜单中的“Editor”并选择“Embed in”，然后选择“Navigation Controller” 步骤1.选择主故事板步骤2.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与导航控制器嵌入。

iOS - 从代码和故事板推送viewController

5 个答案: