Swift 2 Blueprints

Retrieving some pictures

Now, we are going to display some pictures that were taken on the chosen city. As you know, we can use a table view for it. But, for this scenario, Apple has something more appropriate called the collection view.

Create a new file in the ViewControllers group called PicturesViewController.swift. Start by creating a class that inherits from UICollectionViewController:

import UIKit

class PicturesViewController: UICollectionViewController {

This class will need a special nested class to store the pictures' information, as we need to keep the URL, the title, the pictures ID, and the local path where it is stored:

    private class PhotoInfo {
        var title:String!
        var url:String!
        var localPath:String!
        var id:String!
    }

As properties, we ...