This app allows you to Create, Read, Update, and Delete your todo list. You can set a title, priority, due date & time, and description. Tap an item to view its details. Swipe right on an item to delete it. It will give a snackbar with an undo button. Swipe left to open the update screen.

MainActivity has a RecyclerView (todo_list_item). A detail screen opens (activity_todo_detail) when clicking on a specific todo item. At the screen's bottom-right is a FAB to add a todo item. And at the bottom-left the FAB sorts the items by date.

All strings and colors reside inside resource files.

DBHelper contains all the logic for creating and updating the SQLite database and does not have any logic.

DBControl contains methods to insert, update, delete, and select data from the database. It has the most minimal logic possible to keep it as general as possible. This can be used for anything, and is not specific to anything.

The Model class has the most specific information filled in by the extending class. And it has the best feature: If a Model (something stored in the database) extends the class Model and correctly implements its abstract methods, saving and retrieving records is as easy as calling one method. save() (update or create), delete(), get(), and getAll(). And all while being fully SQL-injection save!

Every class that extends Model should have a Migration class. This contains the SQL to create and delete the table. Additionally, it has the table and column names. In DBHelper, these migrations are retrieved and used to set up the database. This way, everything is nicely separated and easily changeable.

• Properly implement mvvm.
• Migrate to Kotlin.
• Add the feature to show a notification at the set due date.