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The iOS 5 Developer's Cookbook: Building Your First Project

Feb 1, 2012

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This chapter is from the book 

iOS 5 Developer's Cookbook, The: Core Concepts and Essential Recipes for iOS Programmers, 3rd Edition

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Detecting Simulator Builds with Compile-Time Checks

Xcode directives issue instructions to the compiler that can detect the platform you’re building for. This lets you customize your application to safely take advantage of device-only features when they’re available. Adding #if statements to your code lets you block or reveal functionality based on these options. To detect if your code is compiled for the simulator or for an iOS device, use a compile-time check:

#if TARGET_IPHONE_SIMULATOR

    Code specific to simulator

#else

    Code specific to iPhone

#endif

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