In July of 2012, Apple released financial results for the previous quarter. Included in the information provided was the fact that Apple has, to date, paid out over $5.5 billion to third-party developers selling applications on the iOS App Store. At the launch of the iPad Mini in October 2012, Apple also revealed that total sales of the iPad now exceed 100 million units. When the latest iPad and iPad Mini went on sale shortly after the launch event, Apple sold 3 million devices in the first weekend alone.

In July of 2012, Apple released financial results for the previous quarter. Included in the information provided was the fact that Apple has, to date, paid out over $5.5 billion to third-party developers selling applications on the iOS App Store. At the launch of the iPad Mini in October 2012, Apple also revealed that total sales of the iPad now exceed 100 million units. When the latest iPad and iPad Mini went on sale shortly after the launch event, Apple sold 3 million devices in the first weekend alone.

The iPad is, by just about any measure, an enormous success. This success translates into a vast potential marketplace for those willing to invest the time and effort into developing compelling and high quality applications. The goal of this book is to make it possible for you to stake a claim in this new and rapidly growing market.

The iPad is, by just about any measure, an enormous success. This success translates into a vast potential marketplace for those willing to invest the time and effort into developing compelling and high quality applications. The goal of this book is to make it possible for you to stake a claim in this new and rapidly growing market.

1.1 The iOS 6 SDK

 

== The iOS 6 SDK ==

 

When details of iOS 6 were first announced at the Apple World Wide Development Conference in June, 2012 it seemed, on the surface at least, that the iOS 5 edition of this book would not need to be significantly updated for iOS 6. After gaining access to the pre-release versions of the iOS 6 SDK and working with the new features, however, it quickly became clear that whilst there are areas that have not changed since iOS 5, there is much more to the new features of iOS 6 than it had at first appeared. In actual fact, 23 new chapters had to be written to cover the new features of iOS 6 and every code example updated to reflect the changes made to Objective-C.

When details of iOS 6 were first announced at the Apple World Wide Development Conference in June, 2012 it seemed, on the surface at least, that the iOS 5 edition of this book would not need to be significantly updated for iOS 6. After gaining access to the pre-release versions of the iOS 6 SDK and working with the new features, however, it quickly became clear that whilst there are areas that have not changed since iOS 5, there is much more to the new features of iOS 6 than it had at first appeared. In actual fact, 23 new chapters had to be written to cover the new features of iOS 6 and every code example updated to reflect the changes made to Objective-C.

How you make use of this book will depend to a large extent on whether you are new to iOS development, or have worked with iOS 5 and need to get up to speed on the features of iOS 6. Rest assured, however, that the book is intended to address both category of reader.

How you make use of this book will depend to a large extent on whether you are new to iOS development, or have worked with iOS 5 and need to get up to speed on the features of iOS 6. Rest assured, however, that the book is intended to address both category of reader.

1.2 For New iOS Developers

 

== For New iOS Developers ==

 

If you are entirely new to iOS development then the entire contents of the book will be relevant to you.

If you are entirely new to iOS development then the entire contents of the book will be relevant to you.

Beginning with the basics, this book provides an outline of the steps necessary to set up an iOS development environment. An introduction to the architecture of iOS 6 and programming in Objective-C is provided, followed by an in-depth look at the design of iPad applications and user interfaces. More advanced topics such as file handling, database management, in-app purchases, graphics drawing and animation are also covered, as are touch screen handling, gesture recognition, multitasking, iAds integration, location management, local notifications, camera access and video and audio playback support. New iOS 6 specific features are also covered including Auto Layout, Twitter and Facebook integration, event reminders, App Store hosted in-app purchase content, collection views and much more.

Beginning with the basics, this book provides an outline of the steps necessary to set up an iOS development environment. An introduction to the architecture of iOS 6 and programming in Objective-C is provided, followed by an in-depth look at the design of iPad applications and user interfaces. More advanced topics such as file handling, database management, in-app purchases, graphics drawing and animation are also covered, as are touch screen handling, gesture recognition, multitasking, iAds integration, location management, local notifications, camera access and video and audio playback support. New iOS 6 specific features are also covered including Auto Layout, Twitter and Facebook integration, event reminders, App Store hosted in-app purchase content, collection views and much more.

The aim of this book, therefore, is to teach you the skills necessary to build your own apps for the iPad. Assuming you are ready to download the iOS 6 SDK and Xcode, have an Intel-based Mac and some ideas for some apps to develop, you are ready to get started.

The aim of this book, therefore, is to teach you the skills necessary to build your own apps for the iPad. Assuming you are ready to download the iOS 6 SDK and Xcode, have an Intel-based Mac and some ideas for some apps to develop, you are ready to get started.