BabylonDemo

Spec https://github.com/Babylonpartners/iOS-Interview-Demo/blob/master/demo.md

Note

To record the demo, the NetworkLinkConditioner has been used (to slow down the network calls), with the following profile:

Dependencies

Depedencies are managed through Carthage.

Please run carthage update --platform ios to synchronise them.

Third Party Frameworks

RxSwift
MBProgressHUD
Quick + Nimble

Architecture

MVVM-C

BabylonDemo (app) -> links to -> Core.framework (which contains 99% of the app)

AppCoordinator starts the PostsCoordinator on the key window.

PostsCoordinator embeds a PostsViewController inside a UINavigationController, and makes it the root view controller of the key window.

PostsViewModel fetches the posts, that are then shown in the table view.

Once a post is tapped, PostsTableViewCellViewModel notifies PostsViewModel via delegation. PostsViewModel then notifies PostsCoordinator, again through delegation.

PostsCoordinator then starts PostDetailCoordinator on the navigation controller. It pushes a PostDetailViewController on the navigation stack.

PostDetailViewModel fetches the users and the comments.

Caching

CachedWebService is a decorator for any class that implements WebserviceType protocol. It provides basic storage capabilities.

For the sake of the demo, NSUserDefaults is being used as storage.

Tests

CoreTests are tests written for Core.framework.

They have been written for the view models and the view controllers.