ios - 如何在 ios 10 中处理后台推送通知？

Question

我不在后台处理推送通知。

按照以下步骤在后台处理推送通知:-

1. 在功能中 -> 启用远程通知。
2. 在功能 -> 后台模式 -> 启用远程通知。
3. 在 didFinishLaunchingWithOptions 中授予 ios 10 的所有权限。
4. 对于使用 UNUserNotificationCenter 的推送通知。

5. 应用程序在前台然后推送通知工作正常，下面的方法调用:

   userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler
   

但我的问题是应用程序在后台然后不调用任何方法。所以任何人有想法或解决方案在 ios 10 后台处理推送通知然后请帮助我。

谢谢。

Answer 1

willPresentNotification 在应用程序处于前台时调用。查看他们的文档

 - (void)userNotificationCenter:(UNUserNotificationCenter *)center
       willPresentNotification:(UNNotification *)notification
         withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler {
    // The method will be called on the delegate only if the application is in the foreground.
    // If the method is not implemented or the handler is not called in a timely manner then the notification will not be presented.
    // The application can choose to have the notification presented as a sound, badge, alert and/or in the notification list.
    // This decision should be based on whether the information in the notification is otherwise visible to the user.

}

- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
         withCompletionHandler:(void(^)())completionHandler {
    // The method will be called on the delegate when the user responded to the notification by opening the application,
    // dismissing the notification or choosing a UNNotificationAction.
    // The delegate must be set before the application returns from applicationDidFinishLaunching:.

}

尝试 checkin didReceiveNotificationResponse 您将获得所需的内容。

另外如果需要获取任何数据或进行任何处理，请在后台模式下启用后台获取并使用以下方法

-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(nonnull void (^)(UIBackgroundFetchResult))completionHandler{

    completionHandler(UIBackgroundFetchResultNewData);
}

根据应用程序状态处理 APNS

   if(application.applicationState == UIApplicationStateInactive)
     {
        /* 
        # App is transitioning from background to foreground (user taps notification), do what you need when user taps here!
         */    
    }
    else if(application.applicationState == UIApplicationStateActive)
    {
        /*
         # App is currently active, can update badges count here
       */
    }
    else if(application.applicationState == UIApplicationStateBackground)
    {
        /* # App is in background, if content-available key of your notification is set to 1, poll to your backend to retrieve data and update your interface here */
    }