Advanced iOS 4 programming : developing mobile applications by Maher Ali

By Maher Ali

With Advanced iOS four Programming, builders have the professional tips they should create awesome purposes for Apple's iPhone, iPad, and iPod contact.

Inside, veteran cellular developer Dr. Maher Ali starts off with a beginning advent to aim C and Cocoa contact programming, after which courses readers via construction apps with Apple's iPhone SDK four – together with insurance of the most important different types of recent APIs and development apps for the recent Apple iPad.

This ebook concentrates on illustrating GUI strategies programmatically, permitting readers to completely savor the full photograph of iOS four improvement with out hoping on Interface Builder. moreover, Interface Builder is roofed in different chapters.

Advanced iOS four Programming delves into extra complex issues going past the fundamentals of iOS four improvement, supplying finished assurance that can assist you get your apps to the App shop quicker.

Key gains include:

  • Objective-C programming language and runtime
  • Interface Builder
  • Building complicated cellular person interfaces
  • Collections
  • Cocoa Touch
  • Core Animation and Quartz 2D
  • Model-view-controller (MVC) designs
  • Developing for the iPad
  • Grand principal Dispatch
  • Parsing XML files utilizing SAX, DOM, and TouchXML
  • Working with the Map equipment API
  • Remote and native Push Notification
  • Blocks (closures) in Objective-C
  • Building complicated location-based applications
  • Developing database functions utilizing the SQLite engine
  • GameKit framework

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Extra resources for Advanced iOS 4 programming : developing mobile applications for Apple iPhone, iPad, and iPod touch

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The way you define properties has a direct impact on memory usage and the health of your application. If 34 Advanced iOS 4 Programming you are not careful, the memory footprint of your application can keep growing until iOS terminates your application. In addition to being careful about releasing unused memory, you need to make sure that your object design does not introduce circular references. Circular references occur when two or more objects in a group hold references to other objects in the group such that the dealloc method of any of these objects will never be called.

4 covers properties, an Objective-C language feature that allows you to access instance variables using the dot notation. 5. Categories allow you to extend existing classes by adding new methods. Posing is another technique that is slightly different from categories. Posing allows you to replace a given class with one of its descendants. 6. Exceptions and error handling are important features in any modern language. 7 covers both of these techniques and shows you the appropriate use of each feature.

To get/set the value of the instance variable, you use the dot notation. name = @"Plano". This statement is actually translated by the compiler to something like [aObject setName:@"Plano"]. Note that the instance variable, name, is still a non-public variable, but it appears as if we are accessing the variable directly from the outside. You use the @property directive in the class declaration in order to declare a property. , implementation). This feature of Objective-C allows you to request only getter methods for instance variables that are read-only.

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