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 extraordinary functions for Apple's iPhone, iPad, and iPod contact.

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

This e-book concentrates on illustrating GUI strategies programmatically, permitting readers to totally savour the whole photograph of iOS four improvement with out hoping on Interface Builder. furthermore, Interface Builder is roofed in numerous chapters.

Advanced iOS four Programming delves into extra complicated subject matters going past the fundamentals of iOS four improvement, delivering entire insurance to help you get your apps to the App shop quicker.

Key positive aspects 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 crucial Dispatch
  • Parsing XML records utilizing SAX, DOM, and TouchXML
  • Working with the Map package API
  • Remote and native Push Notification
  • Blocks (closures) in Objective-C
  • Building complex location-based applications
  • Developing database purposes utilizing the SQLite engine
  • GameKit framework

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Using alloc) and puts that object in a pool for later release. When the time comes and you want to free up some memory, you release this pool and the pool will go over its content and send a release message to each and every object added to it. Development under iOS involves using shared libraries called frameworks. One of the most important framework defined by Cocoa is the Foundation Framework. This framework is automatically added to your project when you create it for the first time. The Foundation Framework provides the NSAutoreleasePool class for managing delayed releases.

An object is not considered a Cocoa object if it is not an instance of NSObject or any class that inherits from NSObject. This class defines the runtime methods required for allocating and deallocating objects. • NSString. This is the main class representing strings in Cocoa. Using this class, you can store an arbitrary text. However, once you store a value in an object of this type, you cannot change 24 Advanced iOS 4 Programming it. This kind of class is referred to as immutable. ), you need the mutable string class NSMutableString.

Instances of this class represent Cocoa set objects. The mutable version is NSMutableSet. 2 for more information on sets in Cocoa. 2 Memory Management Modern computer languages employ garbage collection. A garbage collector is a runtime algorithm that scans the allocated objects in your program and reclaims (deallocates) objects that you have lost contact with. For example, if you created an object and stored its location in a variable pointer named ptr and later you set ptr to nil, the memory block allocated, whose address was stored in ptr, is no longer accessible by your code.

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