November 2014
Intermediate to advanced
912 pages
21h 51m
English
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Chapter 11. Networking and Sharing
11.0. Introduction
When iOS apps are connected to the Internet, they become more lively. For example, imagine an app that brings high-quality wallpapers to its users. The user can pick from a big list of wallpapers and assign any of those images as his iOS background. Now consider an app that does the same thing but adds to its list of wallpapers every day, week, or month. The user comes back to the app, and voilà! Tons of new wallpapers are dynamically added to the app. That is the magic of web services and the Internet. This can easily be achieved with basic knowledge of networking, XML, JSON, and sharing options, along with some creativity on the app developer’s part.
In this chapter, we are going to explore various classes that
connect our applications with the Internet and social media. Take the
NSURLSession class for example. This class replaces NSURLConnection
and allows us to create sophisticated upload and download tasks that use
block objects and are very configurable. For instance, as you will see in
this chapter, using the NSURLSession
class, we will be able to download content from a URL even when our
application is in the background.
We also have at our disposal the Social framework that allows us to share user-created or app-created content with various social media services, such as FaceBook and Twitter. We are going to explore this framework as well in this chapter.
11.1. Downloading Data Using NSURLSession
Problem
You want to be able ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.