December 2010
Beginner to intermediate
320 pages
10h 3m
English
Content preview from Learning the iOS 4 SDK for JavaScript Programmers
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Setting the Project’s Base SDK
You probably noticed that the Overview menu at the upper-left corner of the project window says “Base SDK Missing.” Before you can compile an app and run it, you need to set the SDK version Xcode should use for compilation and deployment. Because TheElements project was created when SDK version 3.0 was still available and modified to build for iOS 4.0, Xcode in the iOS 4.2 SDK doesn’t recognize the setting as being valid. It’s time to bring the setting up to date by adjusting what is known as the Target—a collection of specs Xcode uses to build an application around the source code of the project.
Open the target’s settings by choosing Project→Edit Active Target “TheElements”. You will see the Target Info window. In the first group of settings is the Base SDK, which confirms that the originally specified SDK 4.0 is not available. Click in the right column to reveal your possible Base SDK choices, as shown in Figure 2-11. Choose Latest iOS. This setting will allow the project to work in future SDK versions without further adjustment.
Figure 2-11. Setting the project to use the latest iOS version as the Base SDK
Close the Target Info window. The Overview menu should now indicate “4.2|Debug|TheElements” or similar indications. If the Overview menu doesn’t change, close and reopen the project. In the next chapter, you will work with an additional setting that ...
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