我正在编写一个通用应用程序,我最初使用两个故事板文件编写它。我在App Delegate didFinishLaunchingWithOptions
例程中有代码来决定要加载和离开的故事板。我已经意识到这是一个愚蠢的事情,因为我有重复的代码,所以我删除了一个故事板,并使另一个故事板。我已经修复了风险投资指向正确的班级和一切。但是,我的应用程序现在拒绝启动。当我在sim中运行它时,它给了我错误
如果想要使用主故事板文件,则app委托必须实现window属性。
以下是我在App Delegate中的代码:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
var deviceIdiom = UIDevice.currentDevice().userInterfaceIdiom
if deviceIdiom == UIUserInterfaceIdiom.Phone {
strDevice = "iPhone"
} else if deviceIdiom == UIUserInterfaceIdiom.Pad {
strDevice = "iPad"
} else {
strDevice = "Unknown"
}
return true
}
我做错了什么?
(我已经看过但没有帮助的问题):
Unique Issue displaying first storyboard scene in Xcode
The app delegate must implement the window property if it wants to use a main storyboard file
Managing two storyboards in App Delegate
How to manually set which storyboard view to show in app delegate
Swift - Load storyboard programatically
答案 0 :(得分:3)
您的应用代表需要像这样开始:
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
//...
}