TaskScanner App

TaskScanner is an iOS application that allows users to view and manage tasks retrieved from a remote API. The app supports offline data persistence using Core Data, QR code scanning to quickly search tasks, and a pull-to-refresh feature for easy data updates.

Features

• QR Code Scanning: Users can scan QR codes to quickly search for tasks. The scanned QR code text is automatically set as the search query.
• Offline Data Persistence: Tasks are stored locally using Core Data, ensuring users can view and search tasks even without an internet connection.
• Pull-to-Refresh: Users can refresh their task list by pulling down on the table view, ensuring they always have the latest data.

Architecture

The TaskScanner app is built using the Model-View-ViewModel (MVVM) architecture. This design pattern helps separate concerns and makes the codebase more modular, testable, and maintainable.

• Model: Represents the data layer of the app. In this app, the Assignment struct and Core Data entities represent the model.
• View: The user interface components, such as TaskViewController, display data and capture user interactions.
• ViewModel: The TaskViewModel handles the business logic and data manipulation, interacts with the Model, and updates the View with the necessary data.

Usage

QR Code Scanning

• Tap the QR code icon in the navigation bar to open the QR scanner.
• Align the QR code within the camera view. Once a QR code is detected, it will automatically set the search query and filter the task list.

Pull-to-Refresh

• Pull down on the task list to refresh the data.
• The app will fetch the latest tasks from the server, or load them from Core Data if offline.

Offline Usage

• The app automatically saves fetched tasks to Core Data, allowing offline access to tasks.
• When offline, the app loads tasks from Core Data, ensuring seamless access.

Core Data

The app uses Core Data to store tasks locally. This ensures that tasks are available offline and that the app can operate smoothly without requiring a constant internet connection.

Acknowledgements

• AVFoundation for the QR code scanning functionality.
• Core Data for offline data persistence.

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Additional Notes

• Testing: Ensure you have the correct API endpoints and access permissions before running the app.