Android Question How to change view colors / text on a B4XPage from code present on a code/service module?

[amorosik]

I have an app for Android that receives sms
N.1 service module, 3 B4XPage with a command button on each
When sms arrives in the service module I have to change background color, button color, button text on the requested page
How to make code in the service module change these properties of any page?
In general, for the instructions present inside a code module, how to refer to the objects present on a B4XPage?

 

[Erel]

Don't assume that B4XPages is ready when the message arrives.

If B4XPages.IsInitialized Then
 B4XPages.MainPage.DoSomething
End If