OK. OKHttpUtils2 is fine for sending messages, but I am not really looking to send messages from the App.
What I am after is being able to receive the messages, like I currently do with Firebase like Firebase messaging
I can see all the parts (code for the manifest, java code, API_KEYS etc.) But I don't know how to implement this within B4A having never developer on Android with anything other that B4A since day one....
Does anyone have the necessary code to implement this please ? Happy to donate
You need to follow their instructions. This needs a bit more work, implementing the manifest-changes, adding Service(s), using the SDK. Probably you need to write a wrapper of it. You can use JavaObject too if you are familar with it.
After you Obtain Credentials to use Amazon Device Messaging (ADM) and set it up in your development environment, integrate ADM with your app. See Overview of ADM for a high-leve...