xcode - 在启动时决定 Storyboard

Question

我试图在应用程序委托(delegate)启动时在两个 Storyboard之间做出决定。首先，我删除了 Info.plist 中的 NSMainStoryboardFile = Main 条目，以防止自动加载 Storyboard。

然后我尝试从 AppDelegate 加载主 Storyboard，但这不起作用。

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {


func applicationDidFinishLaunching(aNotification: NSNotification) {
    let storyboard = NSStoryboard(name: "Main", bundle: nil)
    storyboard.instantiateInitialController()
}

我不知道为什么。希望有人能帮忙。

Answer 1

var window: UIWindow?

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

    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let navigationController:UINavigationController = storyboard.instantiateInitialViewController() as! UINavigationController
    var rootViewController:UIViewController = storyboard.instantiateViewControllerWithIdentifier("LoginView") // LoginView is your view controller name

    navigationController.viewControllers = [rootViewController]
    self.window?.rootViewController = navigationController
    self.window?.makeKeyAndVisible()
    window?.backgroundColor=UIColor.blackColor()

    return true
}