push-notification - 获取推送通知 token -iOS 10，Swift 3

Question

如何从 iOS 10 中的新 xCode 8 和 Swift 3 获取设备 token ？

这是注册通知的代码:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {    

    DispatchQueue.main.async {
        let settings = UIUserNotificationSettings(types: [.badge, .sound, .alert], categories: nil)
        UIApplication.shared.registerUserNotificationSettings(settings)
    }
    return true
}

func application(_ application: UIApplication, didRegister notificationSettings: UIUserNotificationSettings) {

    if notificationSettings.types != UIUserNotificationType() {
        application.registerForRemoteNotifications()
    }
}

在这里，我得到 token ，但是出现以下错误

Cannot invoke initializer for type 'UnsafePointer<CChar>' with an argument list of type '(UnsafeRawPointer)':

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

    let chars = UnsafePointer<CChar>((deviceToken as NSData).bytes)
    var token = ""

    for i in 0..<deviceToken.count {
        token += String(format: "%02.2hhx", arguments: [chars[i]])
    }

    print("Registration succeeded!")
    print("Token: ", token)
}

有人可以帮我解决吗？

Answer 1

此方法可以解决iOS 10及更高版本中的问题:

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    var token = ""
    for i in 0..<deviceToken.count {
        token = token + String(format: "%02.2hhx", arguments: [deviceToken[i]])
    }
    print(token)
}