ios 从 Nib 文件加载 UIViewController
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Loading UIViewController "from" Nib File
提问by JayVDiyk
I am trying to create an UIViewControllerfrom a Nib file. On Google I found that I can only load an UIView from Nib.
我正在尝试UIViewController从 Nib 文件创建一个。在 Google 上，我发现我只能从 Nib 加载 UIView。
But some suggests that I could create a Nib file (of UIView) whose File Owner is set to our ViewController.
但有人建议我可以创建一个 Nib 文件（UIView 的），其文件所有者设置为我们的ViewController.
That is what I did, I got no crashes, but the View is just not displayed.
这就是我所做的，我没有崩溃，但是没有显示视图。
EDIT:
Tried to push the viewcontrollerlike this
编辑：试图推动viewcontroller这样
self.navigationController!.pushViewController(CoolViewController(), animated: true );
But it still showing black screen when it is pushed
但是按了还是黑屏
XCode 6.3 - Not using Storyboards
XCode 6.3 - 不使用故事板
采纳答案by Mike Crawford
You need to allocate your ViewController, then initialize it by telling the iOS the name of the nib.
您需要分配您的ViewController，然后通过告诉 iOS 笔尖的名称来初始化它。
I see you're using Swift; I'm afraid I don't know swift, only objective-c. But here is how it would be done in objective-c:
我看到你在使用 Swift；恐怕我不知道swift，只知道objective-c。但这是在objective-c中如何完成的：
[self.navigationController pushViewController [[[CoolViewController alloc] initWithNibName: @"CoolDesign" bundle: nil] autorelease];
... where "CoolDesign" is the base name of your nib. That is, you create CoolDesign.xib in Interface Builder, Xcode compiles the XML - text - xib into CoolDesign.nib, then you tell initWithNibName to open just @"CoolDesign".
...其中“CoolDesign”是您笔尖的基本名称。也就是说，您在 Interface Builder 中创建 CoolDesign.xib，Xcode 将 XML - text - xib 编译为 CoolDesign.nib，然后您告诉 initWithNibName 打开 @"CoolDesign"。
It's not enough just to tell Interface Builder that a design document is a UIViewController. While in principle the iOS could figure out what you mean, also in principle you could have multiple nibs for a single UIViewControllersubclass.
仅仅告诉 Interface Builder 设计文档是一个UIViewController. 虽然原则上 iOS 可以弄清楚你的意思，但原则上你可以为单个UIViewController子类使用多个笔尖。
回答by Sudhin Davis
Try this, you can load a UIViewControllerwith nibName:
试试这个，你可以加载UIViewController与nibName:
Swift
迅速
self.navigationController!.pushViewController(CoolViewController(nibName: "CoolViewControllerNibName", bundle: nil), animated: true )
Objective-C
目标-C
CoolViewController*coolViewCtrlObj=[[CoolViewController alloc] initWithNibName:@"CoolViewControllerNibName" bundle:nil];
[self.navigationController pushViewController:coolViewCtrlObj animated:YES];
