Need a good debugger for my B4A app.

[vfafou]

Hello!
I've written an app using GPS, WebSocket, Database, Spatialite, Google Maps, String Functions and other libraries and classes.
My biggest problem is that especially on some Android 6.0 - 6.0.1 devices, my app eventually crashes without any report.
It's very difficult to understand where the crash occurs because I don't have any crash report. I'm suspecting some libraries but I'm sure I have done somewhere in my code some mistakes!
Does anyone want to help me find out what is wrong?

Thank you in advance!

 

[MarcoRome]

A few code ... Log

 

[trueboss323]

Have you tried using an AVD ?

 

[vfafou]

No!
The crash occurs when the device is in a moving car and it isn't so easy to debug!

 

[ivan.tellez]

Use Firebase Analitics. The crash logs should arrive to your mail

 

[MarcoRome]

You can add this code in Starter, where [email protected] is your email

Sub Process_Globals
    Private logs As StringBuilder
    Private logcat As LogCat
    Private const emailAddress As String = "[email protected]"
End Sub

Sub Service_Create
    logs.Initialize
#if RELEASE
    logcat.LogCatStart(Array As String("-v","raw","*:F","B4A:v"), "logcat")
#end if
End Sub

Sub Service_Start (StartingIntent As Intent)

End Sub

Private Sub logcat_LogCatData (Buffer() As Byte, Length As Int)
    logs.Append(BytesToString(Buffer, 0, Length, "utf8"))
    If logs.Length > 5000 Then
        logs.Remove(0, logs.Length - 4000)
    End If
End Sub

'Return true to allow the OS default exceptions handler to handle the uncaught exception.
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
    'wait for 500ms to allow the logs to be updated.
    Dim jo As JavaObject
    Dim l As Long = 500
    jo.InitializeStatic("java.lang.Thread").RunMethod("sleep", Array(l))
    logcat.LogCatStop
    logs.Append(StackTrace)
    Dim email As Email
    email.To.Add(emailAddress)
    email.Subject = "Program crashed"
    email.Body = logs
    StartActivity(email.GetIntent)
    Return True
End Sub

Sub Service_Destroy

End Sub

So whe crash you have a message