B4J Question [Webapp] Change Div Text From Mobiles Clients

[fabricio]

Hi,

Scenario:
1 Webapp and many mobile clients.

I'm starting with Webapp and try change div text from text received from mobile app.

Content of funcoes:

Sub Process_Globals
    
End Sub

Public Sub Modifica(jq As JQueryElement, NovoTexto As String)
    jq.SetText(NovoTexto)
End Sub

Thanks.

 

[Erel]

Please post the code as text.

I'm not sure that I understand the configuration. There are mobile clients and also browser based clients?

 

[fabricio]

I'm used WebAppHelloWorld as example and add one DIV called divtext and I would like to send a text from mobile devices and this text would be shown in div.

Main

'Non-UI application (console / server application)
#Region  Project Attributes
    #CommandLineArgs:
    #MergeLibraries: True
#End Region

Sub Process_Globals
    Public srvr As Server
End Sub

Sub AppStart (Args() As String)
    srvr.Initialize("srvr")
    srvr.AddWebSocket("/ws", "HelloWorld")
    srvr.Port = 51042
    srvr.Start
    StartMessageLoop
End Sub

HelloWorld

'WebSocket class
Sub Class_Globals
    Private ws As WebSocket 'ignore
    Private text1, text2, btnCalc, Result, divtext As JQueryElement
End Sub

Public Sub Initialize
End Sub

Private Sub WebSocket_Connected (WebSocket1 As WebSocket)
    Log("Connected")
    ws = WebSocket1
End Sub

Sub btnCalc_Click (Params As Map)
    Dim ft2 As Future = text2.GetVal
    Dim ft1 As Future = text1.GetVal
    If IsNumber(ft1.Value) And IsNumber(ft2.Value) Then
        Result.SetText("Result: " & (ft1.Value + ft2.Value))
    Else
        Result.SetText("Invalid numbers")
    End If
End Sub

Private Sub WebSocket_Disconnected
    Log("Disconnected")
End Sub

Sub Device_Message(Params As Map)
    Dim ReceivedMsg As String = Params.Get("message")
    Log(ReceivedMsg)
    'CallSubDelayed3(funcoes, "Modifica", divtext, "teste2")
    divtext.RunMethod("text", Array As Object("teste"))
End Sub

funcoes

Sub Process_Globals
    
End Sub

Public Sub Modifica(jq As JQueryElement, NovoTexto As String)
    jq.SetText(NovoTexto)
End Sub

 

[Erel]

Are you using a browser on the mobile client?

 

[fabricio]

No.
Mobile: App made with B4A.
Webapp: Browser on PC.

I receive information from app android, it's OK.
update information from app android on webbrowser is not working.

Thanks

 

[Erel]

Each WebSocket handler instance manages a specific connection between the server and a client. There is no relation between the server - mobile client class instance and the server - browser class instance.

See the chat example: https://www.b4x.com/android/forum/t...ads-sessions-and-server-events.39969/#content
It shows you how to manage all the connection instances and update them.