Android Question Calling a SAP Web Service

Sub Process_Globals
'These global variables will be declared once when the application starts.
'These variables can be accessed from all modules.

End Sub

Sub Globals
'These global variables will be redeclared each time the activity is created.
'These variables can only be accessed from this module.
    Dim sidij As HttpJob
    Dim url As String

    Dim lblText As Label
    Dim scvText As ScrollView

    Dim txt As String
    
    Dim requestSoapXML As String

End Sub

Sub Activity_Create(FirstTime As Boolean)

    Activity.LoadLayout("LongText")
    scvText.Panel.LoadLayout("LongText1")

    url = "http://10.1.1.4:8000/sap/bc/srt/wsdl/flv_10002P111AD1/sdef_url/ZWEB_MC_TEST?sap-client=100"
    requestSoapXML = "<?xml version=""1.0""?> <n0:ZwebTest xmlns:n0=""urn:sap-com:document:sap:soap:functions:mc-style""/>"

    Log("Imposto il messaggio di richiesta:")
    Log(requestSoapXML )

    sidij.Initialize("Job", Me)
    sidij.Username = "user"
    sidij.Password = "pass"
    sidij.poststring(url, requestSoapXML)
    sidij.GetRequest.SetContentType("text/xml; charset=""UTF-8""")

    ToastMessageShow("un momento ...", True)
End Sub

Sub JobDone (Job As HttpJob)
  Log("JobName = " & Job.JobName & ", Success = " & Job.Success)
  If Job.Success = True Then
        Log("Risultato su job.getstring:")
        Log(Job.GetString)
        txt = ""
        txt = txt & Job.GetString
        lblText.Text=txt
  Else
          Log("Error: " & Job.ErrorMessage)
          ToastMessageShow("Error: " & Job.ErrorMessage, True)
  End If
  Job.Release
End Sub

<?xml version="1.0" encoding="UTF-8"?>
<n0:ZwebTestResponse xmlns:n0="urn:sap-com:document:sap:soap:functions:mc-style">
<OMsg>Forse funziona!</OMsg>
</n0:ZwebTestResponse>