Android Question Send Maps/Lists over bluetooth?

[techknight]

Is it possible to send a Map or List object over a bluetooth connection instead of regular byte arrays? If so, how would I go about doing that?

I saw something on B4XSerializator but its not really "clicking" as it seems complicated, and its sending canvas data instead of a Map or a List so not sure how to do 2 + 2 there.

Thanks.

Edit: What I am attempting to accomplish is send SQL queries over the bluetooth connection to a "master" device, and get back its data in either Map or List form. So I can keep 2 devices/2 apps synchronized as all the stats are kept in the master app.

 

[Erel]

Is it possible to send a Map or List object over a bluetooth connection instead of regular byte arrays? If so, how would I go about doing that?

Yes. With B4XSerializator.

It is explained in this tutorial:


I don't see how it can be simpler. It takes exactly a single line to convert the collection to an array of bytes.

 

[KMatle]

Or: List/Map -> JSON string -> toBytes and back

 

[Erel]

Or: List/Map -> JSON string -> toBytes and back

If you are sending data between B4X platforms then it will only make the program more complicated, the result message much larger and will not support custom types.

 

[techknight]

Oh I didnt know video tutorials had existed. Thats awesome.