A simple application using the Unsplash API to search for photos by keywor

UnsplashApp

Test app A simple application using the Unsplash API to search for photos by keyword. On the first tab bar VC – the search screen displayed random fetched images. On the second tab bar VC – the favorites screen displayed liked and saved in UserDefaults images

Functionality

ViewControllers

PhotosCollectionViewController

The search screen at the beginning displayed random fetched images.

PhotosCollectionView

  • During scrolling, if scrolled down to the last element of collectionView, asynchronously start loading more images
  • Custom “waterFall” layout
  • Custom apearing alpha animation

SearchController

  • When text in searchBar begin changing the searchBar, requests are made to search for images by keyword
  • Since the API has a limit of 50 requests per hour, created Timer to avoid or minimize unnecessary requests, while user printing

FavoritesCollectionViewController

  • The favorites screen displayed liked and saved in UserDefaults images
  • Custom apearing alpha animation

DetailViewController

Appears after touching on selected cell. Present a large image and detailed information of this image in custom Bottom Sheet

InfoView

Represents detail info of Image \

Contains info:

  • Author name
  • Description
  • Location
  • Downloads number
  • Creation date

Buttons:

  • Like button -> save / remove from Favorites List
  • Action button -> UIActivityViewController()
  • Original size -> PhotoViewController()

PhotoViewController

Used to display the best quality image in the correct aspect ratio. Also here is saveBarButtonItem

Services

1. Network

1.1 NetworkService

       Serves to configuring URLS with parameters and REQUESTS for Unsplash API

1.2 NetworkManager

       Contains methods to decode JSON and fetching data

2. StorageManager

    Serves to work with UserDefaults for saving, fetching, remove favorites photo

3. AppUtility

    Serves to lock orientation and prevent screen rotation

Demonstration

Practice with: Unsplash API UserDefaults UrlSession SDWebImage

GitHub

View Github