ios - 将AppToken中的deviceToken swift 传递给另一个类时出错

我在AppDelegate中创建此变量以存储deviceToken，然后将其传递给另一个类

var deviceTokenToPass:NSData?

func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {


     deviceTokenToPass = deviceToken


}

在另一个类中，我试图将deviceToken传递给Parse.com，但在deviceToken传递值的行中出现异常

let delegate = UIApplication.sharedApplication().delegate as! AppDelegate

let deviceToken = delegate.deviceTokenToPass




var currentInstallation = PFInstallation.currentInstallation()

currentInstallation.setDeviceTokenFromData(deviceToken)  // Exception in this line
currentInstallation.channels = ["global"]

currentInstallation.saveInBackground()

当我将其放入AppDelegate中但我想将此数据存储在另一个类中时，这行同样适用

最佳答案

你需要拆开它

if let deviceToken = delegate.deviceTokenToPass
{
    var currentInstallation = PFInstallation.currentInstallation()

    currentInstallation.setDeviceTokenFromData(deviceToken)
    currentInstallation.channels = ["global"]

    currentInstallation.saveInBackground()
}

关于ios - 将AppToken中的deviceToken swift 传递给另一个类时出错，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/37881997/