LazyBlog

如果你不想要用LaunchScreen.storyboard
而是使用Launch Image Source
然後第一個畫面你想要拿到跟Launch Image Source的同一張圖片

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func getCurrentLaunchImage() -> UIImage? {

guard let launchImages = Bundle.main.infoDictionary?["UILaunchImages"] as? [[String: Any]] else { return nil }

let screenSize = UIScreen.main.bounds.size

var interfaceOrientation: String
switch UIApplication.shared.statusBarOrientation {
case .portrait,
.portraitUpsideDown:
interfaceOrientation = "Portrait"
default:
interfaceOrientation = "Landscape"
}

for launchImage in launchImages {

guard let imageSize = launchImage["UILaunchImageSize"] as? String else { continue }
let launchImageSize = CGSizeFromString(imageSize)

guard let launchImageOrientation = launchImage["UILaunchImageOrientation"] as? String else { continue }

if
launchImageSize.equalTo(screenSize),
launchImageOrientation == interfaceOrientation,
let launchImageName = launchImage["UILaunchImageName"] as? String {
return UIImage(named: launchImageName)
}
}

return nil
}

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