Android Question Firebase Notification receive case

[taylorw]

Hi all, I usging Firebase for notification.

I have a problem with the notification, when user turn off they phone or no internet but after they connect to network or turn on they phone they no receive the notification.

Is any mistake for me?Please help for this.

 

[KMatle]

Can you show the code how you send the messages?

 

[taylorw]

This is my code.

Private Sub SendMessage(Topic As String, Title As String, Body As String)
    
    Dim Job As HttpJob
    Job.Initialize("fcm", Me)
    Dim m As Map = CreateMap("to": $"/topics/${Topic}"$)
    Dim data As Map = CreateMap("title": Title, "body": Body)
    
    m.Put("data", data)
    Dim jg As JSONGenerator
    jg.Initialize(m)
    Job.PostString("https://fcm.googleapis.com/fcm/send", jg.ToString)
    Job.GetRequest.SetContentType("application/json;charset=UTF-8")
    Job.GetRequest.SetHeader("Authorization", "key=" & Main.API_KEY)
    
End Sub

SendMessage(Notification_Topic, Notification_Title, Notification_Body)

Private fm As FirebaseMessaging

Sub Service_Create
    fm.Initialize("fm")
End Sub

Public Sub SubscribeToTopics
    
    fm.SubscribeToTopic(Notification_Topic)
    
End Sub

Sub Service_Start (StartingIntent As Intent)
    If StartingIntent.IsInitialized And fm.HandleIntent(StartingIntent) Then Return
    Notification_Topic.Initialize
    SFC.Initialize

End Sub

Sub fm_MessageArrived (Message As RemoteMessage)

    Dim n As Notification
    n.Initialize
    n.Icon = "icon"

            n.SetInfo2(Message.GetData.Get("title"), Message.GetData.Get("body"), Message.GetData.Get("StartDate"), frmLeave_List)
            
            n.AutoCancel = True
            n.Notify(Notification_Count)
            Notification_Count = Notification_Count +1
    
End Sub

 

[Erel]

Which version of B4A and Android are you using?

 

[taylorw]

Which version of B4A and Android are you using?

Hi Erel, I using 7.0.1 version.

 

[Erel]

I assume that in all other cases it works properly. This means for example that notifications are received after boot, right?

The default 'time to live' for notifications is 4 weeks. So the notifications should eventually arrive.

The various options are listed here: https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages#Notification

Try to add the collapse_key to the 'm' map.

 

[taylorw]

I assume that in all other cases it works properly. This means for example that notifications are received after boot, right?

Yes, sorry Erel the "collapse_key" can you give me a sample?

 

[Erel]

m.Put("collapse_key", "test123")

 

[taylorw]

m.Put("collapse_key", "test123")

Thanks, Erel and the receiver side need add any code? Any the "collapase_key" can be any word right?

 

[Erel]

hanks, Erel and the receiver side need add any code?

No.

Any the "collapase_key" can be any word right?

Yes.

 

[taylorw]

No.


Yes.

Thanks Erel!This solve me problem.