在 Swift 中注册远程通知时未收到设备令牌

Posted 2023-02-23

【中文标题】在 Swift 中注册远程通知时未收到设备令牌

【英文标题】：Device Token not received when registering for remote notifications in Swift

【发布时间】：2015-05-03 09:46:54

【问题描述】：

注册远程通知时不知何故无法接收设备令牌。我收到模式说“你想让 App X 能够向你发送通知”，但是当我接受它时，不会调用 didRegisterForRemoteNotifications 函数。

当我使用此代码在 ios 8/Swift 中注册远程通知时：

    UIApplication.sharedApplication().registerForRemoteNotifications()
    let settings = UIUserNotificationSettings(forTypes: UIUserNotificationType.Badge | UIUserNotificationType.Alert | UIUserNotificationType.Sound, categories: nil)
    UIApplication.sharedApplication().registerUserNotificationSettings(settings)
    UIApplication.sharedApplication().registerForRemoteNotifications()

这些功能根本没有被触发：

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

和

func application(application: UIApplication,    didFailToRegisterForRemoteNotificationsWithError error: NSError!) 

但是当我记录这个时

println("current settings \(UIApplication.sharedApplication().currentUserNotificationSettings()) and \(UIApplication.sharedApplication().isRegisteredForRemoteNotifications())")

我收到了

"current settings <UIUserNotificationSettings: 0x170437120; types: (UIUserNotificationTypeAlert UIUserNotificationTypeBadge UIUserNotificationTypeSound);> and true" 

我的配置文件和证书都井井有条。

其他人有这个问题吗？

【问题讨论】：

为什么要给registerForRemoteNotifications()打两次电话？

1) 创建推送通知并附加您的个人资料 2) 在功能推送通知中 3) 发送设备令牌查看更多信息以了解我的答案

【参考方案1】：

你可以试试这个

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool 
        // Override point for customization after application launch.

        var types: UIUserNotificationType = UIUserNotificationType.Badge |
            UIUserNotificationType.Alert |
            UIUserNotificationType.Sound

        var settings: UIUserNotificationSettings = UIUserNotificationSettings(forTypes: types, categories: nil)

        application.registerUserNotificationSettings(settings)
        application.registerForRemoteNotifications()

        return true
    

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

        var characterSet: NSCharacterSet = NSCharacterSet(charactersInString: "<>")

        var deviceTokenString: String = (deviceToken.description as NSString)
            .stringByTrimmingCharactersInSet(characterSet)
            .stringByReplacingOccurrencesOfString( " ", withString: "") as String

        println(deviceTokenString)

    

编辑：Swift 2.x 更新

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool 
        // Override point for customization after application launch.


        let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)

        application.registerUserNotificationSettings(settings)
        application.registerForRemoteNotifications()

        return true
    

编辑：Swift 3.x 更新

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool 
        // Override point for customization after application launch.

    let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)

    application.registerUserNotificationSettings(settings)
    application.registerForRemoteNotifications()

    return true



func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) 
let characterSet = CharacterSet(charactersIn: "<>")
    let deviceTokenString = deviceToken.description.trimmingCharacters(in: characterSet).replacingOccurrences(of: " ", with: "");
    print(deviceTokenString)

【讨论】：

还是不行！会不会跟证书有关？

是的，你需要做的，从头开始重新创建。

"***.com/questions/33970840/…" 你能找到这个问题的答案吗？我用你的答案试过了，但它不适用于 iPad

swift 3 中设备令牌的问题

你在做什么与 OP 的代码不同？这样做有什么问题：UIApplication.sharedApplication()?

【参考方案2】：

对于 Swift 3.0，您可以使用：

let deviceTokenString = message.reduce("", $0 + String(format: "%02X", $1))

【参考方案3】：

对于 swift 4.0，请按照以下步骤操作：

1).关于功能中的推送通知(TARGET)

2). 在 didFinishLaunchingWithOptions 中使用此代码

  let settings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)

        application.registerUserNotificationSettings(settings)
        application.registerForRemoteNotifications()

3). 也添加这个

 func application(_ application: UIApplication,
                 didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) 
    let tokenParts = deviceToken.map  data -> String in
        return String(format: "%02.2hhx", data)
    

    let token = tokenParts.joined()
    print("Device Token: \(token)")  
 

【参考方案4】：

这样做：

   UIApplication.sharedApplication().registerForRemoteNotifications()

【参考方案5】：

请确保您的证书有效并且应用程序注册成功，做一些谷歌搜索，您一定会找到正确的方法。此代码对我有用。

（在 AppDelegate.swift didFinishLaunchingWithOptions 方法中）

var notify : UIUserNotificationSettings = UIUserNotificationSettings(forTypes:UIUserNotificationType.Alert|UIUserNotificationType.Sound, categories: nil)
    UIApplication.sharedApplication().registerUserNotificationSettings(notify)
    UIApplication.sharedApplication().registerForRemoteNotifications()

//添加UIApplication的Delegate方法

   func application(application: UIApplication,didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData)
 //send this device token to server

    println("\(deviceToken)")

//无法注册APNS时调用。

func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) 

    println(error)

【参考方案6】：

如果您收到此消息，则说明您已经注册，并且只有在启动应用程序或更改令牌时才会调用该方法。令牌更新的可能性很小。

也许，您可以尝试从您的测试设备中删除应用程序并尝试从 Xcode 中清除它。再做一遍。

【讨论】：

感谢您的回答，但我已经尝试过，并在多个设备上尝试过。

【参考方案7】：

斯威夫特 5

对于 Swift 5，我是这样使用的，

    let settings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
    application.registerUserNotificationSettings(settings)

    UIApplication.shared.registerForRemoteNotifications()

【参考方案8】：

当didRegisterForRemoteNotificationsWithDeviceToken 未被调用时，您应始终先重新连接到另一个 Wi-Fi 网络，或切换两次飞行模式，然后重新启动您的应用程序，然后再尝试其他任何操作。否则，重新启动您的设备也可能会有所帮助。