MiniASOS is a simple e-commerce app inspired by the ASOS app for iOS devices running iOS 9.3 or higher. The app is implemented in Swift 3 and includes the following features:
- A Facebook style menu to select product categories.
- A product grid screen implemented with a UICollectionView.
- A product detail screen with product description and image carousel.
- Double tap an item in the product grid to fave/unfave the product.
- View the list of favourited products.
- Add a product to the basket
- View the content of the basket
- A badge onto the basket icon indicates the number of the items in the basket.
- Support for localisation.
Open the MiniASOS.xcworkspacein Xcode 8 and hit:
CMD+URun the Unit and Integration TestsCMD+RBuild & Run the app
The app uses CocoaPods for dependency management and depends on SwiftyJSON for JSON parsing. I consciously avoided the use of other libraries for (e.g networking, slide-out menu, activity indicator, cache, etc. ).
The app design promotes a separation of the UI, Model and Business layers.
The main patterns used are IoC & Dependency Injection, MVC, Observer, Delegation.
The Model layer uses value types rather than reference types.
The app avoids to access global singletons (e.g via .shared()). Singletons are passed to the dependent classes instead.
The component ImageDownloader caches the downloaed images in memory and resizes large images down to 400px width to reduce memory usage and improve rendering performance.
It's possible to reset the image cache by shaking the device.
The image cache is also reset on memory warning events.
This initial implementation should be improved in the following areas:
- Error handling: network requests should handle error conditions (e.g network errors, timeouts) and display an appropriate message to the user.
- Offline Support: the app should inform the user if the device is offline.
- Visual Design: improve the general look and feel also taking advantage of high resolution assets.