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Test Your Knowledge: The directory structure and file types of iPhone application projects explained
Summary
This is a test on the article that discusses the directory structure and the files created in a sample first iPhone application. The file types discussed include .h, .m, .xib, and other common extensions that a programmer would directly deal with. File types like .pch, .xcodeproj, .plist, .framework that are indirectly (or less frequently) worked on by a programmer are also discussed.
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Table of Contents
Creation of the first iPhone application The Directory Structure Figure 1. The Grouping of various iPhone project files in the Groups & Files window of Xcode. Figure 2. The directory structure of first iPhone application. This is a simple Navigation-Based application. The File Types Files that are used more often by the Developer Source Files The User Interface Files Project-related Files The Project File Code Listing 1. The .xcodeproj is actually a directory (see the d for directory at the beginning of the entry) Code Listing 2. The contents of the .xcodproj file package Figure 3. Viewing the package contents from Finder. Right-click on the File Package and if it is a file package, you will see Show Package Contents menu item. The Information Property List File Code Listing 3. The Info.plist file for FirstApp. The Precompiled Header File (Precompiled Prefix Header File) Code Listing 4. Contents of the precompiled prefix header file. Framework and Library Files Figure 4. The information about UIKit.framework. Figure 5. The contents of UIKit.framework Executable Files Figure 6. Contents of an .app file package. You can see that the .nib files (binary versions of .xib files) are also included. Root Directory The Classes directory The Build Directory
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