在 Swift 3 中接收远程通知

Posted 2023-02-24

【中文标题】在 Swift 3 中接收远程通知

【英文标题】：Receiving a Remote Notification in Swift 3

【发布时间】：2017-02-05 20:17:43

【问题描述】：

我有以下代码：

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) 
    let queryNotification = CKQueryNotification(fromRemoteNotificationDictionary: userInfo)
    let notification = Notification(name: NSNotification.Name("Name"), object: nil, userInfo: ["Key": queryNotification])
    NotificationCenter.default.post(notification)

但是，有人告诉我这不是接收远程通知的正确方式。相反，我被指示使用以下委托方法。我不明白如何使用这种方法来做我上面所做的事情。有人请帮忙。

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void)  

【问题讨论】：

你是对的。远程通知不会传递到 UNNotificationCenterDelegate 方法

@Paulw11 - 对于 ios 10 及更高版本，您必须使用 UNNotificationCenterDelegate。 UIUserNotifications 已被弃用。

这对于请求通知权限和处理本地通知是正确的，但您会看到application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) 不推荐 developer.apple.com/reference/uikit/uiapplicationdelegate/… 此外，“接收远程通知”是未在UNNotificationCenterdeveloper.apple.com/reference/usernotifications/…的概述中列出

application:didReceiveRemoteNotification: 已弃用，而不是 application:didReceiveRemoteNotification:fetchCompletionHandler:

【参考方案1】：

我认为你想要做的是这样的：

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) 

    // Extrapolate userInfo
    let userInfo = response.notification.request.content.userInfo
    let queryNotification = CKQueryNotification(fromRemoteNotificationDictionary: userInfo)
    let notification = Notification(name: NSNotification.Name("Name"), object: nil, userInfo: ["Key": queryNotification])
    NotificationCenter.default.post(notification)

    completionHandler()