Update an old android application to latest version of Android OS

Question

Hi,
Thanks for reading my post.
The fact is I have an android application that can work only on system lower than Android 4.4.2, in system higher the app doesn't work.
Like on the Lenovo tab M7 : system Android 9.0 (Go Edition), the app doesn't work.
I would like to know if someone know how and what I can do to update my app in order to make it works on new system Android ?

Answer 1

open your apk with android studio, update the maximum sdk to the last which is 30, and do the necessary code changes to adapt it to androidx.constraintlayout. you need at least basic skills to do the job.