This the final submission made for the elective course App-Programming @ OTH Regensburg.

This was my first completed app. It's purpose is to count swum laps in a charity event.

The app uses the following key concepts:

• MVVM architectural design pattern (Model-View-ViewModel)
• Room database for locally stored user data
• LiveData to observe changes to the user data in the database
• using a RESTful web interface to upload data regularly
• Repository for single point of accessing Room db or web data
• recurring data uploads using WorkManager

The app has the following features:

• show list of swimmers currently in the swimming pool in a RecyclerView
• laps can easily be counted using buttons, data is persisted in a Room database and observed using LiveData
• you can view additional information, in a profile view when clicking on the user
• users can be searched online and added to the offline "cache" (database) by typing the ID or using a QR code
• changed data (swum laps) is automatically uploaded regularly