HUE22

Features

• Synchronization using Timestamps:
  • During synchronization the timestamps are compared and the newer one is used
  • If the timestamp (from the server) is invalid it is assumed that the client is more up-to-date
  • If the entity doesn't exist on the server, it is created
• Login and Registration in App
• Multiple Todo Lists in the Navigation Drawer
  • New ones can be created using the overflow menu resulting in a Dialog
  • Todo List name is shown in the Activity Title
  • Last opened list is remembered
  • Drawer is disabled in Register and Login
• Animations using Material Motion
  • Login to Register
  • List change
  • Show details
  • Open Editor (from FAB)
• Drawer Header showing current username
• Logout Button in overflow menu
  • User data is removed on logout so that it doesn't mix with the next users data
• Swipe to Refresh on list view

Internal Features

• Android Jetpack Navigation Component is used
• API Calls via Retrofit 2
• Database or API operations are performed asynchronously using Kotlin Coroutines
• Modular Architecture
  • Event handlers are in their respective fragment/activity
• Extensive use of LiveData
• Usage of Room with SQLite as data storage as replacement for the old Serializers and Storages
• Continuous Integration using GitHub Actions
• ViewModels in Login/Register
• BindingAdapters so that Data Bindings can be used everywhere where it makes sense
• Error handling for Login
• Input validation in editor (using animated hiding of FAB)

Improvements

• Extract Activities into Fragments to achieve Single Activity Architecture
• Migration from JCenter to Maven Central
• data-lib is now a real Android Library instead of just a Kotlin Module
• Various dependency updates
• FAB moves out of the way if a Snackbar appears using CoordinatorLayout

Bug Fixes

• Task Checking in the Details View works now