Testing app on a real phone

[dwf2008]

Hi all. I am working on an app in android studio. I decided to try testing it on my real smartphone, a samsung galaxy s20. It installed and ran ok. During this testing I made a few changes to the code and ran it again, and again, and again. When I was done I discovered that I had about 6 of the launch icons on my phone. I reasoned that the ide must create a new icon each time I run it from AS. So I deleted (uninstalled) the app from the phone. A few days later after more editing, I tried it again. To my surprise all 6 of the startup icons reappeared AND the newer code was not installed but the older code I had been testing previously was back on the phone. So I uninstalled it again and then went into the device manager and deleted the apps folders from /data/data/com etc. Another try but the same result.

Can someone tell me what’s going on here and how to fix it?
Thanks

 

[ocnbrze]

did you delete from cache as well? i am no dev. but i do know some data can still reside in cache.