This is just a simple app for nextap interview (the task is here). App is intended for iPhones with deployment target 13.7. Only Portrait mode is supported.
Just clone the repository and use Cocoapods to download project dependencies.
pod install
This app uses VIPER architecture. It consists of two main modules: Feed and Preview. The storyboards were used for designing user interface.
Feed loads data feed from the following endpoint:
and parse the data into objects. The stories (just first images and user names) are then loaded into UICollectionView. After tap on any story (UICollectionViewCell), the preview shows up.
Preview module is instantiated from Feed module and prepopulated with all fetched stories (there is no reason to fetch it separately, as this module works with the same endpoint and no other data is needed).
Preview uses customized vertical UIScrollView for browsing stories. Each story consist of main UIImageView for the story image itself, and UILabel and UIImageView for user data. There is also button for dismissing the the Preview. There are grey->opaque gradient layers at the top and bottom of the story image, the reason for this is to be able to read user name (which uses white font) on white or bright images.
After dismissing the Preview, stories Feed is scrolled to the position of the last browsed story.
This app uses following 3rd party libraries:
I used this project to generate basic module structure for VIPER architecture. The repo is here
This is just progress indicator used when fetching stories.
Alamofire is used for fetching stories and loading images. Repo
Used for InstagramStories like transitions between Stories. This library was slightly modified, this version is here