Android Question Send and reveive an image using MQTT

Juan Marrero said:

Is it possible to send and receive images using MQTT? I've been trying to do so but always get an error saying that the object i used cannot be serialized with serializator.ConvertObjectToBytes. I've tried with ImageView, Bitmap, Object, InputStream and Type (with ImageView inside).

These are 2 examples of what I've tried:

B4X:

'    Dim img As ImageView
         
'    img.Initialize("")
'    img.Bitmap = LoadBitmap(fd.FilePath, fd.ChosenName)
'
'    mqtt.Publish(mytopic, serializator.ConvertObjectToBytes(img))

     Dim iStream As InputStream        
     iStream = File.OpenInput(fd.FilePath, fd.ChosenName)
          
     mqtt.Publish(mytopic, serializator.ConvertObjectToBytes(iStream))

Also I can't receive the image in the server because I can't compare the object to an image because what the server receives is a Byte Array:

B4X:

If obj Is Image Then 'The example uses CircleData that is a Type with basic data types

End If

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