ios - 在 iPhone 5 和 iPhone SE 中获取空设备 token

Question

我没有在 iPhone 5 (10.2.1) 和 SE(10.3.1) 以及其他 5 个相关设备中获取设备 token ，但在所有 iPhone 6(包括 plus、SE)和 7 以及 7+ 中都成功获取了 token .

这是我的注册码

func registerForPushNotification(let application: UIApplication) {
    let notificationTypes: UIUserNotificationType = [UIUserNotificationType.Alert, UIUserNotificationType.Badge, UIUserNotificationType.Sound]
    let pushNotificationSettings = UIUserNotificationSettings(forTypes: notificationTypes, categories: nil)
    application.registerUserNotificationSettings(pushNotificationSettings)

    application.applicationIconBadgeNumber = 0

    if pushNotificationSettings.types != .None {
        application.registerForRemoteNotifications()
    }
}

这是我收集 token 的代码

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

    let characterSet: NSCharacterSet = NSCharacterSet( charactersInString: "<>" )
    let deviceTokenString: String = ( deviceToken.description as NSString )
        .stringByTrimmingCharactersInSet( characterSet )
        .stringByReplacingOccurrencesOfString( " ", withString: "" ) as String
    print( deviceTokenString )
}

有什么帮助吗？

Answer 1

我已经在我的 AppDelegate 中处理了 didRegisterUserNotificationSettings

像这样

func application(application: UIApplication, didRegisterUserNotificationSettings notificationSettings: UIUserNotificationSettings) {
    if notificationSettings.types != [] {
        application.registerForRemoteNotifications()
    }   
}

这解决了@Lion 提出的问题