December 2014
Intermediate to advanced
480 pages
11h 31m
English
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Chapter 3. Applications on OS X and iOS
As far as users are concerned, applications are the only thing on their computers besides their files. After all, a computer is defined by what it can do for the user, and what it can do is defined by the applications that are installed.
As a developer, it’s easy to get drawn into the details of how an app is put together—the individual classes, methods, and structures. However, the application as a whole is what’s sold to the user, and that’s all users care about.
In this chapter, you’ll learn how applications are structured on OS X and iOS, how they differ from other kinds of distributable code, what they can do on the system, and what they’re prevented from doing by the built-in security measures provided by the OS.
What Is an Application?
Applications on iOS and OS X are packaged differently from applications on other platforms, most notably Windows. On other platforms, the end result of compiling your project is a binary file that contains the compiled code. It’s then up to you as a developer to package that binary file up with the resources it needs. On Linux, you generate a package file (which can vary depending on the distribution you’re using), and on Windows, it’s traditional to create an “installer,” which is an additional application that unpacks the binary and resources.
OS X and iOS take a different approach to applications. This approach stems from the concept of a “package”—a folder that contains a number of items but is presented ...
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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.
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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.