Question

在XCode 6中创建新项目不允许禁用Storyboard。您只能选择Swift或Objective-C并使用或不使用Core Data。

我尝试删除故事板，从项目中删除主故事板并从didFinishLaunching手动设置窗口

在AppDelegate中我有这个：

class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow
var testNavigationController: UINavigationController

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

        testNavigationController = UINavigationController()
        var testViewController: UIViewController = UIViewController()
        self.testNavigationController.pushViewController(testViewController, animated: false)

        self.window = UIWindow(frame: UIScreen.mainScreen().bounds)

        self.window.rootViewController = testNavigationController

        self.window.backgroundColor = UIColor.whiteColor()

        self.window.makeKeyAndVisible()

        return true
    }
}

然而，XCode给了我一个错误：

Class'AppDelegate'没有初始值设定项

有人在这方面取得了成功吗？

Answer 1

不使用Storyboard来rootViewController：

1·将AppDelegate.swift更改为：

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
        window = UIWindow(frame: UIScreen.main.bounds)
        if let window = window {
            window.backgroundColor = UIColor.white
            window.rootViewController = ViewController()
            window.makeKeyAndVisible()
        }
        return true
    }
}

2·创建ViewController的{{1}}子类：

UIViewController

3·如果您是从Xcode模板创建的项目：

从import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() view.backgroundColor = UIColor.blue } }删除密钥"Main storyboard file base name"的键值对。
删除情节提要文件Info.plist。

正如您在第一个代码段中看到的，我不是隐式地展开可选项，而是喜欢展开可选Main.storyboard属性的if let语法。在这里，我使用它window，以便可选的if let a = a { }成为a - 语句中具有相同名称的if的非可选引用。

在引用其自己的类中的a属性时，最后不需要self.。

Answer 2

您必须将window和testNavigationController变量标记为可选：

var window : UIWindow?
var testNavigationController : UINavigationController?

Swift类需要在实例化期间初始化非可选属性：

在创建该类或结构的实例时，类和结构必须将其所有存储属性设置为适当的初始值。存储的属性不能保留在不确定的状态。

可选类型的属性会自动初始化，其值为nil，表示该属性在初始化过程中故意要“没有值”。

使用可选变量时，请记得使用!打开它们，例如：

self.window!.backgroundColor = UIColor.whiteColor();

Answer 3

如果要使用xib初始化viewController并且需要使用导航控制器。这是一段代码。

var window: UIWindow?
var navController:UINavigationController?
var viewController:ViewController?

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    window = UIWindow(frame: UIScreen.mainScreen().bounds)

    viewController = ViewController(nibName: "ViewController", bundle: nil);
    navController = UINavigationController(rootViewController: viewController!);

    window?.rootViewController = navController;
    window?.makeKeyAndVisible()

    return true
}

Answer 4

请尝试以下代码：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
    self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
    self.window!.backgroundColor = UIColor.whiteColor()

    // Create a nav/vc pair using the custom ViewController class

    let nav = UINavigationController()
    let vc = NextViewController ( nibName:"NextViewController", bundle: nil)

    // Push the vc onto the nav
    nav.pushViewController(vc, animated: false)

    // Set the window’s root view controller
    self.window!.rootViewController = nav

    // Present the window
    self.window!.makeKeyAndVisible()
    return true

}

Answer 5

我找到了与xcode设置无关的答案，删除了故事板，项目中的引用是正确的。它与快速语法有关。

代码如下：

class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?
var testNavigationController: UINavigationController?

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

        self.testNavigationController = UINavigationController()
        var testViewController: UIViewController? = UIViewController()
        testViewController!.view.backgroundColor = UIColor.redColor()
        self.testNavigationController!.pushViewController(testViewController, animated: false)

        self.window = UIWindow(frame: UIScreen.mainScreen().bounds)

        self.window!.rootViewController = testNavigationController

        self.window!.backgroundColor = UIColor.whiteColor()
        self.window!.makeKeyAndVisible()

        return true
    }

}

Answer 6

你可以这样做：

class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    var IndexNavigationController: UINavigationController?

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
        var IndexViewContoller : IndexViewController? = IndexViewController()
        self.IndexNavigationController = UINavigationController(rootViewController:IndexViewContoller)
        self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
        self.window!.rootViewController = self.IndexNavigationController
        self.window!.backgroundColor = UIColor.whiteColor()
        self.window!.makeKeyAndVisible()
        return true
    }
}

Answer 7

我建议你使用controller和xib

MyViewController.swift和MyViewController.xib

（您可以通过File-＆gt; New-＆gt; File-＆gt; Cocoa Touch Class创建并设置＆＃34;还可以创建XIB文件＆＃34; true，UIViewController的子类）

class MyViewController: UIViewController {
   .....    
}

并在AppDelegate.swift func application中编写以下代码

....
var controller: MyViewController = MyViewController(nibName:"MyViewController",bundle:nil)
self.window!.rootViewController = controller
return true

应该有用！

Answer 8

针对Swift 3.0进行了更新：

window = UIWindow()
window?.rootViewController = ViewController()
window?.makeKeyAndVisible()

Answer 9

这是UINavigationController的完整快速测试示例

        import UIKit
        @UIApplicationMain
        class KSZAppDelegate: UIResponder, UIApplicationDelegate {    
          var window: UIWindow?
          var testNavigationController: UINavigationController?

          func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
            // Override point for customization after application launch.        
            // Working WITHOUT Storyboard
            // see http://randexdev.com/2014/07/uicollectionview/
            // see http://stackoverflow.com/questions/24046898/how-do-i-create-a-new-swift-project-without-using-storyboards
            window = UIWindow(frame: UIScreen.mainScreen().bounds)
            if let win = window {
              win.opaque = true    
            //you could create the navigation controller in the applicationDidFinishLaunching: method of your application delegate.    
              var testViewController: UIViewController = UIViewController()
              testNavigationController = UINavigationController(rootViewController: testViewController)
              win.rootViewController = testNavigationController
              win.backgroundColor = UIColor.whiteColor()
              win.makeKeyAndVisible()
// see corresponding Obj-C in https://developer.apple.com/library/ios/documentation/WindowsViews/Conceptual/ViewControllerCatalog/Chapters/NavigationControllers.html#//apple_ref/doc/uid/TP40011313-CH2-SW1
        //      - (void)applicationDidFinishLaunching:(UIApplication *)application {
        //    UIViewController *myViewController = [[MyViewController alloc] init];
        //    navigationController = [[UINavigationController alloc]
        //                                initWithRootViewController:myViewController];
        //    window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        //    window.rootViewController = navigationController;
        //    [window makeKeyAndVisible];
            //}
            }
            return true
          }
    }

Answer 10

更新：Swift 5和iOS 13：

创建单视图应用程序。
删除 Main.storyboard （右键单击并删除）。

Info.plist

故事板名称

打开SceneDelegate.swift，然后从以下位置更改func scene：

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
    // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
    // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
    guard let _ = (scene as? UIWindowScene) else { return }
}

到

 func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
    // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
    // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).x

    if let windowScene = scene as? UIWindowScene {
        let window = UIWindow(windowScene: windowScene)
        window.rootViewController = ViewController()
        self.window = window
        window.makeKeyAndVisible()
    }
}

Answer 11

为什么不创建一个空的应用程序？故事板不是为我创造的......

Answer 12

我们可以在Xcode 6（iOS 8）中创建没有故事板的基于导航的应用程序，如下所示：

通过选择项目语言来创建一个空应用程序迅速的。
使用xib接口添加新的cocoa touch类文件。（例如。 TestViewController）
在swift中，我们只有一个文件与xib交互，即* .swift 文件，没有.h和.m文件。
我们可以使用与iOS 7中相同的swift文件连接xib的控件。

以下是使用控件和Swift

的一些片段

//
//  TestViewController.swift
//

import UIKit

class TestViewController: UIViewController {

    @IBOutlet var testBtn : UIButton

    init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
        // Custom initialization
    }

    @IBAction func testActionOnBtn(sender : UIButton) {
        let cancelButtonTitle = NSLocalizedString("OK", comment: "")

        let alertController = UIAlertController(title: "Title", message: "Message", preferredStyle: .Alert)

        // Create the action.
        let cancelAction = UIAlertAction(title: cancelButtonTitle, style: .Cancel) { action in
            NSLog("The simple alert's cancel action occured.")
        }

        // Add the action.
        alertController.addAction(cancelAction)

        presentViewController(alertController, animated: true, completion: nil)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

}

AppDelegate.swift文件中的更改

//
//  AppDelegate.swift
//

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    var navigationController: UINavigationController?

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
        self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
        self.window!.backgroundColor = UIColor.whiteColor()
        self.window!.makeKeyAndVisible()

        var testController: TestViewController? = TestViewController(nibName: "TestViewController", bundle: nil)
        self.navigationController = UINavigationController(rootViewController: testController)
        self.window!.rootViewController = self.navigationController

        return true
    }

    func applicationWillResignActive(application: UIApplication) {
}

    func applicationDidEnterBackground(application: UIApplication) {
    }

    func applicationWillEnterForeground(application: UIApplication) {
    }

    func applicationDidBecomeActive(application: UIApplication) {
    }

    func applicationWillTerminate(application: UIApplication) {
    }

}

查找代码示例和其他信息 http://ashishkakkad.wordpress.com/2014/06/16/create-a-application-in-xcode-6-ios-8-without-storyborard-in-swift-language-and-work-with-controls/

Answer 13

在iOS 13及更高版本中，当您创建没有情节提要的新项目时，请按以下步骤操作：

使用Xcode 11或更高版本创建项目
删除故事板笔尖和课程
使用xib添加新文件
需要将根视图设置为UINavigationController SceneDelegate
添加以下代码：

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
    // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
    // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
    // guard let _ = (scene as? UIWindowScene) else { return }
    
    if let windowScene = scene as? UIWindowScene {
        self.window = UIWindow(windowScene: windowScene)
        let mainController = HomeViewController() as HomeViewController
        let navigationController = UINavigationController(rootViewController: mainController)
        self.window!.rootViewController = navigationController
        self.window!.makeKeyAndVisible()
    }
}

如何在不使用Storyboard的情况下创建新的Swift项目？

13 个答案: