PixFinder

An photo searching app made with ❤️ to demonstrate some examples of clean architecture, code organisation, loose coupling, unit testing (coming up) and some of the best practices used in modern iOS programming using latest Swift 5.0.1 and its latest power tools like Combine and some of the SwiftUI magic.

MVVM with Clean architecture

• Loose coupling of layers
• For unit testing of all layers (pending, work in progress)

3 Layer App architecture

• Data Layer
  • Network related tasks
  • Service & HTTP clients
• Domain Layer
  • UseCase & business logic
• Presentation Layer
  • The UI layer code using UIKit & MVVM - VCs & VMs
  • Custom Error Handling
    • At network layer error is mapped in custom way
    • Offline / Network disconnected error is shown separately ○ Any other generic errors are also mapped
  • Adaptive layout
    • Designed for both iPhone & iPad
    • Size Class detection and custom collection view layout
  • Custom Theme & Dark mode support
    • Custom fonts
    • Custom colours
    • Defined globally in Theme to use consistently
  • Custom Accessibility & Dynamic Type
    • Custom Font Avenir used
    • Dynamic Type Supported to scale font up/down as needed for
    • Accessibility Ids are attached for future UI testing
    • Correct labels are attached to elements for Voice over
  • Localisations/Internationalisations
    • strings file based localisation
    • English, French, Spanish are supported
    • Keywords are searched to Pixabay API based on device locale to get the photo results localised
  • Use of Combine
  • Use of SwiftUI

Demos:

iPad

iPhone

SwiftUI based detail view

Installation

• Xcode 11.4(required) with Swift 5.0.1
• Clean and build the project in Xcode or /DerivedData folder if needed
• No 3rd Party Libraries used at this stage

TODOs:

• Unit testing at each layer (via Quick / Nimble)
• Coming up soon...