swift - Urban Airship swift

Question

我正在尝试将 UrbanAirship 集成到我的项目中，但出现以下错误:

2016-08-25 16:26:23.898 Fibre[7758:368753] [E] __52+[UAirship handleAppDidFinishLaunchingNotification:]_block_invoke [Line 320] Please ensure that [UAirship takeOff] is called synchronously before application:didFinishLaunchingWithOptions: returns

如果能帮助解决这个问题，我们将不胜感激!

我的申请委托(delegate)如下:

 func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

        // Override point for customization after application launch.
        FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)

        let configuration = ParseClientConfiguration { (configuration) -> Void in

            configuration.applicationId = "******"                
            configuration.clientKey = "*****" 
            configuration.server = "https://*****.herokuapp.com/parse"       

        }

        Parse.initializeWithConfiguration(configuration)

        let config: UAConfig = UAConfig.defaultConfig()
        UAirship.takeOff(config)

        return true
    }

Answer 1

我自己之前没有使用过 Urban Airship SDK，但是您发布的错误消息似乎是“在应用程序之前同步调用:didFinishLaunchingWithOptions:返回”。

我猜测发生的事情是您在 UAirship 上调用 takeOff 方法，但 didFinishLaunchingMethod 在该方法完成之前返回；很可能是因为它正在另一个线程中处理)。

尝试使用“dispatch_async”强制在主线程上运行 takeOff 方法，然后传入主队列，例如:

dispatch_async(dispatch_get_main_queue(), {
    UAirship.takeOff(config)
})

尝试一下，希望能解决问题。