December 2010
Beginner to intermediate
320 pages
10h 3m
English
Content preview from Learning the iOS 4 SDK for JavaScript ProgrammersBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Recap
This chapter shows two types of execution flow in an iOS app. The
first deals with the steps an app follows to launch—a far cry from the
top-to-bottom approach of web browser coding. You’ve seen how important
the delegation design pattern is to getting a native iOS app going. It is
the applicationDidFinishLaunching:
delegate method that triggers further loading and initializations for your
app. Also demonstrated here is one way a view can display another view as
a user navigates around your app. Views take the place of web pages in the
way you think about app structure.
In the next chapter, I walk you through three programming concepts that may be quite foreign to you, but whose understanding is crucial to successfully design and implement apps with the iOS SDK. You’ll learn how easy you had it with JavaScript.
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