I ask for your assessment of my code and architecture in general. Can this be shown to a potential employer?

Question

Android

I recently started learning Android development. That's why I need criticism.
Sources on GitHub : https://github.com/RomanKaznv/CheckTheSymbls

Answer 1

The first thing that caught my eye.
Two lower case classes:

• class controlItem
  
• class addSymbol
  

And for some reason the package is big: com/example/checkthesymbols/ Controler .
Silenced warning: @SuppressLint("ClickableViewAccessibility")
The work is too small to judge developer's capabilities by it.
For business, it is more interesting to work with databases and external APIs: ORM (SQLite, Realm), synchronization, Retrofit.