Android Question Convert file to send over network with AsyncStreams + B4XSerializator

Dim b() As Byte = File.ReadBytes(...)
'now you have two options:
'send the data directly:
AStream.Write(b)
'or if you want to include more information then use a custom type:
Dim t As YourCustomType = CreateYourCustomType("maybe the file name", b)
AStream.Write(ser.ConvertObjectToBytes(t))

Sub CreateYourCustomType(Name As String, Data() As Byte) As YourCustomType 'this can be generated automatically by hovering over the type declaration

Sub btnSend_Click
    Dim mm As MyMessage
    mm.Initialize
    If IsNumber(txtAge.Text) Then mm.Age = txtAge.Text Else mm.Age = 0
    mm.Name = txtName.Text
    Dim b() As Byte = File.ReadBytes(File.DirAssets, "image.png")
    mm.Image = b
    SendData (ser.ConvertObjectToBytes(mm))
End Sub