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iOS 4 in Action: Developing iPhone and iPad Apps by Shannon Appelcline, Christopher Allen, Brandon Trebitowski, Jocelyn Harrington

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Chapter 14. The web: web views and internet protocols

 

This chapter covers
  • Using web views
  • Parsing XML
  • Accessing other protocols

 

Internet connectivity is an essential feature of modern life, and the iPhone and iPad are so useful because iOS allows for easy internet access. In this chapter, we’ll cover the major ways to access the internet from the SDK. You can use a variety of approaches, and we’ll outline their hierarchy in the first section. Later in the chapter, we’ll look at low-level networking, working with URLs, using the UIWebView, parsing XML, using POST, and accessing the social web using various protocols.

14.1. The hierarchy of the internet

Internet programming involves a hierarchy of protocols. At the lowest level are the ...

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