如何注册推送通知？ios10

Question

我认为注册推送通知的正确方法是先配置用户交互，然后注册推送通知，如下所示

let center = UNUserNotificationCenter.current()
              center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in

                  if granted {

                    // Register with APNs
                    UIApplication.shared.registerForRemoteNotifications()

                  }else{

                      //user did't grant permissino: so we need to send phone ids, as we need to call this function every time the application opened
                      self.sendPhoneIdsToLookitServer()


                  }


              }

但是apple展示了不同的方式，它不建议在配置用户交互后注册远程通知作为回调，而是要求配置用户交互，然后注册推送通知，而不等待用户响应，正如您看到的here

func applicationDidFinishLaunching(_ aNotification: Notification) {
    // Configure the user interactions first.
    self.configureUserInteractions()

    NSApplication.shared().registerForRemoteNotifications(matching: [.alert, .sound])
}

哪种方法是正确的？

Answer 1

如果您对 UNUserNotificationCenter requestAuthorization 之外的其他方法持开放态度，那么这肯定可以解决您的担忧，它也是为iOS 9和8编写的。

func registerForNotification(application : UIApplication) {

    if #available(iOS 10.0, *) {
        let setting = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
        UIApplication.shared.registerUserNotificationSettings(setting)
        UIApplication.shared.registerForRemoteNotifications()
    }
        // iOS 9 support
    else if #available(iOS 9, *) {
        UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound, .alert], categories: nil))
        UIApplication.shared.registerForRemoteNotifications()
    }
        // iOS 8 support
    else if #available(iOS 8, *) {
        UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound, .alert], categories: nil))
        UIApplication.shared.registerForRemoteNotifications()
    }
}

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

    let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
    print("deviceTokenString ======= \(deviceTokenString)")
}

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print("didFailToRegisterForRemoteNotificationsWithError \(error)")
}

func application(_ application: UIApplication, didReceiveRemoteNotification data: [AnyHashable : Any]) {
    // Print notification payload data
    print("Push notification received: \(data)")
}

Answer 2

这不是对错的问题，更像是旧的和新的。苹果将远程和本地通知的接收合并到applicationDidFinishLaunching中，因此如果您处理它们的代码相似，则会减少重复代码。您可以观看this video from Apple并了解其中的变化。

但请注意，如果您的应用程序支持iOS 10.0之前的版本，这些新方法中的一些可能不起作用。确保你的应用程序在这种情况下仍然可以处理旧方法-或者只使用旧方法，直到你的应用程序在iOS 10.0和更高版本上运行。