Android Question Mobile data questions

Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI
   
    Private Timer1 As Timer
End Sub

Public Sub Initialize
'    B4XPages.GetManager.LogEvents = True

End Sub


Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
   
   
    Dim jo As JavaObject
    jo.InitializeStatic("android.net.TrafficStats")

    Dim rxBytes As Long = jo.RunMethod("getMobileRxBytes", Null)
    Dim txBytes As Long = jo.RunMethod("getMobileTxBytes", Null)

    Log("Data received : " & (rxBytes / 1024 / 1024) & " Mo")
    Log("Data sent : " & (txBytes / 1024 / 1024) & " Mo")
   
   
    Timer1.Initialize("Timer1", 5000) ' every 5 seconds
    Timer1.Enabled = True
   
End Sub

Sub Timer1_Tick
    Dim jo As JavaObject
    jo.InitializeStatic("android.net.TrafficStats")

    Dim rxBytes As Long = jo.RunMethod("getMobileRxBytes", Null)
    Dim txBytes As Long = jo.RunMethod("getMobileTxBytes", Null)

    Log("Reception: " & (rxBytes / 1024 / 1024) & " Mo")
    Log("Sending: " & (txBytes / 1024 / 1024) & " Mo")
End Sub