应用程序在iPhone中以黑屏开始

Question

我改变了＃34;启动屏幕文件＆＃34;到我的＆＃34; Main.Storyboard＆＃34;在设置中。在做这个应用程序之前工作正常，并直接打开没有任何问题。但在添加之后，在故事板发布之前有一个黑屏。这是非常糟糕的用户体验。帮我解决这个问题。 AppDelegate和viewController没什么大不了的。我在项目中有一个LaunchScreen.xib，在图像资产中也有LaunchImage。我在项目中使用Storyboard。我不想在我的应用中使用launchScreen，我只是想直接进入我的故事板。

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

 self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
        self.window?.rootViewController = utilitiesObjet.getViewController("MainVC", mainStoryBoardName: "Main")
        self.window?.makeKeyAndVisible()

        Fabric.with([Crashlytics.self()])

        return true
    }

我通过添加LaunchScreen.StoryBoard解决了这个问题，而不是使用LaunchScreen.xib。谢谢大家:)）

Answer 1

在appdelegate中使用此代码来实现目标c .....确实用选项方法完成了发布......

        self.winow = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];

        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"<Your Storyboard name>" bundle:nil];
        LoginViewController *ivc = [storyboard instantiateViewControllerWithIdentifier:@"<your view controller storyboard identifer name>"];
        UINavigationController *navigationController=[[UINavigationController alloc] initWithRootViewController:ivc];

        self.window.rootViewController = navigationController;
        [self.window makeKeyAndVisible];

对于斯威夫特......

 func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
{
    // Override point for customization after application launch.
    let storyboard:UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
    let navigationController:UINavigationController = storyboard.instantiateInitialViewController() as UINavigationController
    let rootViewController:UIViewController = storyboard.instantiateViewControllerWithIdentifier("VC") as UIViewController
    navigationController.viewControllers = [rootViewController]
    self.window?.rootViewController = navigationController
    return true
}

Answer 2

启动屏幕不同的Main.StoryBoard。在启动屏幕文件中，您必须键入：“LaunchScreen”并选择文件Lscreen.storyboard（xcode7），或.xib如果Xcode6