A flutter app that allows you to keep track of your food items' expiration dates and reports time until expiration in days. The quantity available for the said item is also reported.
- I wished to create a multi-page application to solve a real world problem.
- I wished to learn and get used to reading documentations and API files of programming languages.
- Apply advanced Object Oriented Concepts I learned in my programming classes.
- Apply Data Structures and Algorithms from my classes to a real world application.
- Get used to handling a big (ish) projects with multiple files and produce clean, well documented code while solidifying my understand of the key OO principles and best practices.
Here is where the app sets up all of the objects that hold the app together. This file returns a MaterialApp widget which is the root of the widget tree. In the Widget build(BuildContext context) method, the app returns a Scaffold Widget which holds the HomePage class as its body and the SideMenu class as its drawer attribute.
This directory contains classes for all different categories of food such as Dairy, Meat etc.
This directory contains classes for all items that fall under the above mentioned categories. For example, for Dairy, items are eggs, milk and butter.
This directory contains the custom widgets such has a pop up BottomSheet which allows the user to enter details such as Expiration Date, pick a category, an item and a quantity.
lib/Widgets/transactionList.dart
This file is responsible for building a list when new transaction objects are added. If there are no transactions for a particular item, an Out of Stock image is shown. When the user adds a transaction through the BottomSheet, the ListView class is instantiated and the builder method is invoked. Users can slide right or left to remove the added item. System gives feedback which is achieved by using the SnackBar class.
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This directory contains a class that introduces a FirebaseDatabase reference and updates the data in the backend by converting a map into json. It makes use of an id attribute for each transaction (which uniquely identifies each transaction entry) to push the data to a Firebase real-time database every time there is a new entry.
This class is the constructor for each of the transaction objects.
Contains the Widget which is displayed when the menu icon, also known as the hamburger icon, is clicked. It returns a Drawer widget which is used as an argument for the drawer attribute of Scaffold in lib/main.dart.
© Muhammad Ali Malik 2021