Is it possible to write a program that will work on all versions of android?

Question

Android

I wonder if there is a fundamental obstacle that will not allow the developer to write a program that works on all currently available versions of android (phones)
The program must be able to synchronize with the user's account on the site, have a graphical interface with interchangeable "blues", be able to play streaming audio (Internet radio) , be able to respond to events (headphones connected, external power connected)
Thank you

Answer 1

You find the minimum version of the SDK that supports the functions you need and use it to implement the application. It is possible that all versions of Android will be supported, but you should prepare for the fact that there will not be many features of modern versions.