FCM通知服务器未调用didReceiveRemoteNotification函数 [英] didReceiveRemoteNotification function doesn't called with FCM notification server

问题描述

我正在使用FCM服务器进行远程通知，它可以完美地发送和接收通知.

I'm using FCM server for remote notifications, it worked perfectly with sending and receiving notifications.

我的问题是当设备在后台时，此功能func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void)没有被调用.

My problem is when the device is in the background, this function func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) doesn't called.

我尝试过的解决方案:

• 此功能:

• This function:

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

.否则，它不会被触发.

is called when user tapped on the notification. Otherwise, it's not triggered.

• 在有效负载中添加"content-available": true, "priority": "high".另外，我尝试了此值"content-available": 1.

• Adding "content-available": true, "priority": "high" to the payload. Also, I tried this value "content-available": 1.

这是我的功能代码:

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any],
                     fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        
        print("userInfo: \(userInfo)")
      completionHandler(.newData);
  
    }

推荐答案

如果您正在使用 Postman 进行测试，请尝试将"content-available": true更改为"content_available" : true. 可用内容将发送通知，但不会调用didReceiveRemoteNotification.

If you are testing with Postman then try changing "content-available": true to "content_available" : true. content-available will send notification but it doesn't call didReceiveRemoteNotification.

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