ios - 应用程序在 iPhone 中以黑屏启动

Question

我在设置中将“启动屏幕文件”更改为我的“Main.Storyboard”。之前做这个应用程序运行良好，直接打开没有任何问题。但是在添加这个之后，在 Storyboard启动之前有一个黑屏。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 Assets 中也有 LaunchImage。我在项目中使用 Storyboard。我不想在我的应用程序中使用 launchScreen，我只想直接转到我的 Storyboard。

    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 来解决它，而不是使用 LaunchScreen.xib。谢谢大家:)

Answer 1

在应用程序中使用此代码将此代码委托(delegate)给 objective-c .....使用选项方法完成启动...

        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 swift ....

 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
}