Move classes from /test package to main package (decided to /com.dgsrz package) because they are currently in use by DifficultyReCalculator.java and OSUParser.java classes.
Remove unused and unnecessary files from root, those files probably were created from IDE at the creation of the project and are unnecessary, and some others are from an old Android project structure and they are replaced or just not used anymore.
Remove unused resources from API 9, 11 and 14 they are just not used since min API is 21.
Simplify main theme style resource, merge AppTheme.NoActionBar into AppTheme since MainActivity.java is the only activity that use them there's no reason to have two separated themes.
Remove unused activities, those activities are just not in use. StoryboardTestActivity.java class is the exception since it's used by OsuSprite.java class.
Debug works fine, hope there's no misstakes here :)
/testpackage to main package (decided to/com.dgsrzpackage) because they are currently in use byDifficultyReCalculator.javaandOSUParser.javaclasses.root, those files probably were created from IDE at the creation of the project and are unnecessary, and some others are from an old Android project structure and they are replaced or just not used anymore.AppTheme.NoActionBarintoAppThemesinceMainActivity.javais the only activity that use them there's no reason to have two separated themes.StoryboardTestActivity.javaclass is the exception since it's used byOsuSprite.javaclass.Debug works fine, hope there's no misstakes here :)