KotlinConf 2017 was abundant with great talks. One of my favorites was View State Machine for Network Calls on Android by Amanda Hill. If you haven't had the opportunity, definitely check it out.
Amanda didn't have a repo with the code, so I decided to create my own. Be advised, I have not actually run the application on a device or emulator. The fetching of the ice cream cone is faked and no image is set on the view because API endpoints and icon assets just do not exist. This was an exercise in patterns and testing as affected by multiple development iterations.