ios - 飞溅动画完成后更改 View Controller

Question

我试图在应用程序首次启动时在黑屏上运行启动动画，然后过渡到初始 View Controller 。为此，我将 launchscreen.storyboard View Controller 设置为黑色，然后在我创建的 didFinishLaunchingWithOptions 中将动画作为 subview (如下所示)在 appDelegate 中运行。目前，该应用程序在黑屏上启动，动画淡入、休眠和淡出正确，但即使初始 View Controller 设置为空白背景，也会停留在黑屏上。我已经尝试了多个完成 block 来将应用程序发送到下一个 View Controller ，例如删除 subview 或尝试再次使用 rootViewController 强制它但没有这样的运气。我相当确定这只是我需要的一行代码，但我似乎无法理解。

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

    self.window = UIWindow(frame: UIScreen.main.bounds)
    let imageView = UIImageView(frame: self.window!.frame)
    imageView.loadGif(name: "splashanimation")
    imageView.alpha = 0.0
    self.window!.addSubview(imageView)
    let emptyView = UIViewController()
    self.window?.rootViewController = emptyView
    self.window!.makeKeyAndVisible()
    UIView.animate(withDuration: 1.0, animations: {imageView.alpha = 1}, completion: { (value: Bool) in UIView.animate(withDuration: 1.0, animations: {sleep(UInt32(1.5))}, completion: { (value: Bool) in UIView.animate(withDuration: 2.0, animations: {imageView.alpha = 0}, completion: { 

            ** SOMEHOW OPEN THE FIRST VIEW CONTROLLER **


            })})})
    UIApplication.shared.isStatusBarHidden = true
    return true
}

Answer 1

let storyboard = UIStoryboard(name: "Main", bundle: nil)

let initialViewController = storyboard.instantiateViewControllerWithIdentifier("HomeView") as UIViewController

self.window?.rootViewController = initialViewController
self.window?.makeKeyAndVisible()

这会设置 Storyboard的一个实例，然后就像您对 launchscreen 所做的那样，只需将哪个 VC 设置为初始。