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Test Your Knowledge: Application Delegate for the First iPhone Application Explained
Summary
This is a test on the article that explains the Application Delegate of an iPhone application. This article discusses the standard application delegate header and implementation files generated for a navigation based application. Also goes through the methods that are generally implemented from the UIApplicationDelegate protocol.
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Table of Contents
Creation of the first iPhone application The source files The Header File Code Listing 1. The Application Delegate Declaration What is an application delegate? Figure 1. The variable window of an iPhone application. Here, application object is of type UIApplication; and it has a delegate associated with it (called FirstAppAppDelegate). The Signature of Application Delegate Code Listing 2. The signature of application delegate. The Implementation File Code Listing 3. Implementation file for the application delegate The Methods applicationDidFinishLaunching Figure 2. The call stack leading to applicationDidFinishLaunching. The code in this method gets executed at the beginning of the application. Code Listing 4. The UIApplicationDelegate protocol Code Listing 5. The delegate declaration in UIApplication Code Listing 6. The applicationDidFinishLaunching method applicationWillTerminate Code Listing 7. The applicationWillTerminate method Figure 3. The callstack leading up to the termination of application dealloc Code Listing 8. The dealloc method
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