注册iOS推送通知时出现异常行为

Question

这是我在AppDelegate中注册推送通知的代码：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {  
    let notificationTypes = UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound
    let settings = UIUserNotificationSettings(forTypes: notificationTypes, categories: nil)
    UIApplication.sharedApplication().registerUserNotificationSettings(settings)
    return true
}

func application(application:UIApplication!, didRegisterForUserNotificationSettings notificationSettings:UIUserNotificationSettings) {
    println("[AppDelegate][didRegisterForUserNotificationSettings]")
    UIApplication.sharedApplication().registerForRemoteNotifications()
}

func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
    println("[AppDelegate][didFailToRegisterForRemoteNotificationsWithError]")
    println(error)
}

func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
    println("[AppDelegate][didRegisterForRemoteNotificationsWithDeviceToken]")
    println(deviceToken)
}

当我通过Xcode6.1.1在我的iPhone上启动应用程序时，绝对没有任何反应，我看不到我的println输出，但当我离开应用程序并进入设置->通知时，我发现我的应用程序启用了推送通知。

因为没有调用didRegisterForRemoteNotificationsWithDeviceToken，所以我得不到deviceToken

我做错了什么？

Answer 1

也许问题是，在应用程序完成启动时调用的应用程序委托方法返回true之后，您调用了registerForRemoteNotifications()。试试这个：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {  
    let notificationTypes = UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound
    let settings = UIUserNotificationSettings(forTypes: notificationTypes, categories: nil)

    application.registerUserNotificationSettings(settings)
    application.registerForRemoteNotifications() 

    return true
}

Answer 2

我去了手机的设置，进入一般的->通知->，选择你的应用程序，->通知中心，把它改成10！更改后，我开始获取设备令牌数据！