ios 创建新的视图控制器后如何创建视图控制器文件？

How do I create a view controller file after creating a new view controller?

提问by Kian Cross

I am developing a tabbed application.

我正在开发一个选项卡式应用程序。

When I create a new view controller and link it to the tab bar controller, unlike the other two default view controllers, this one has no viewcontroller.swiftfile.

当我创建一个新的视图控制器并将其链接到标签栏控制器时，与其他两个默认视图控制器不同，这个没有viewcontroller.swift文件。

How can I create this file?

我怎样才能创建这个文件？

I am using Xcode 6 and developing the app in Swift.

我正在使用 Xcode 6 并在 Swift 中开发应用程序。

回答by Rob

Correct, when you drag a view controller object onto your storyboard in order to create a new scene, it doesn't automatically make the new class for you, too.

正确，当您将视图控制器对象拖到情节提要上以创建新场景时，它也不会自动为您创建新类。

Having added a new view controller scene to your storyboard, you then have to:

将新的视图控制器场景添加到故事板后，您必须：

1. Create a UIViewControllersubclass. For example, go to your target's folder in the project navigator panel on the left and then control-click and choose "New File...". Choose a "Cocoa Touch Class":

   

   And then select a unique name for the new view controller subclass:

   

2. Specify this new subclass as the base class for the scene you just added to the storyboard.

   

3. Now hook up any IBOutletand IBActionreferences for this new scene with the new view controller subclass.

1. 创建一个UIViewController子类。例如，转到左侧项目导航器面板中目标的文件夹，然后control单击并选择“新建文件...”。选择“Cocoa Touch Class”：

   

   然后为新的视图控制器子类选择一个唯一的名称：

   

2. 将此新子类指定为您刚刚添加到故事板的场景的基类。

   

3. 现在使用新的视图控制器子类连接这个新场景的任何IBOutlet和IBAction引用。

回答by Manan Jain

To add new ViewControlleronce you have have an existing ViewController, follow below step:

要ViewController在拥有现有 后添加新的ViewController，请按照以下步骤操作：

1. Click on background of Main.storyboard.

2. Search and select ViewControllerfrom object library at the utility window.

3. Drag and drop it in background to create a new ViewController.

1. 单击 的背景Main.storyboard。

2. ViewController在实用程序窗口中从对象库中搜索和选择。

3. 将其拖放到后台以创建新的ViewController.