AppDelegate valueForUndefinedKey

Question

我正在用swift做一个应用程序，但我面临着一些问题。我正在尝试运行我的应用程序，但每次都得到一个错误。

这是完整的错误：*由于未捕获的异常'NSUnknownKeyException‘而终止应用程序，原因：’valueForUndefinedKey:：此类与键currentUnityController的键值编码不兼容。‘

在AppDelegate中，我使用如下服务：

@UIApplicationMain
final class AppDelegate: AppwiseCore.AppDelegate<Config> {
override var services: [ApplicationService] {
    return [
        UnityApplicationService(),
        FabricApplicationService(),
        KeyboardManagerApplicationService()
    ]
}
}

然后我像这样调用UnityAppcontroller：

var window: UIWindow?

var application: UIApplication?
@objc var currentUnityController: UnityAppController!
var isUnityRunning = false

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.
    self.application = application
    unity_init(CommandLine.argc, CommandLine.unsafeArgv)
    currentUnityController = UnityAppController()
    currentUnityController.application(application, didFinishLaunchingWithOptions: launchOptions)

    startUnity()
    return true
}

最后，这是我访问应用程序控制器的方式。

NS_INLINE UnityAppController* GetAppController()
{
NSObject<UIApplicationDelegate>* delegate = [UIApplication sharedApplication].delegate;
UnityAppController* currentUnityController = (UnityAppController*)[delegate valueForKey: @"currentUnityController"];
return currentUnityController;

}

安妮，帮帮忙？

Answer 1

如果您的nib (xib文件)中有一个链接到视图控制器中的属性(IBOutlet)或方法(IBAction)的控件，并且您已经删除或重命名了该属性或方法，则运行库无法找到它，因为它已被重命名，因此崩溃。