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Fetching Remote Images in Swift – A Technique

One of the most common tasks that iOS -and not only- developers are called to perform in their programming endeavours is fetching and managing remote images that should be displayed to an app. For instance, suppose that you’re building the next great messaging application where obviously users have contacts. Those contacts have avatar images residing to a server. When users connect to the app then avatars must be downloaded in order to be used by the app. Or, another example, think of an app that manages the event of a worldwide convention, and among its features is the list of all attendees. Their images must be fetched and handled by the app, and displayed properly when necessary.

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