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  • Book Overview & Buying iOS 5 Essentials
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iOS 5 Essentials

iOS 5 Essentials

By : Steven F. Daniel
3 (3)
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iOS 5 Essentials

iOS 5 Essentials

3 (3)
By: Steven F. Daniel
Buy this Book

Overview of this book

Building on the phenomenal success of its predecessor iOS 5 includes over 200 new user features as well as an updated SDK containing over 1,500 new APIs. iOS 5 looks set to reinforce the iPhone's dominance in the smartphone market. iOS 5 Essentials will help you learn how to build simple, yet powerful iOS 5 applications incorporating iCloud Storage, Twitter, Core Image and Newsstand integration. You will start by learning about what's new in iOS 5. You'll look at the iCloud Storage APIs, Automatic Reference Counting, Twitter and AirPlay integration, how to use the various Core Image filters using the Cocoa framework, and the new features of the iOS 5 SDK. After this, you'll jump straight in and create applications using Xcode and Interface Builder using the new storyboard layout. We then finish up by learning how to make your applications run smoothly using the Xcode instruments.
Table of Contents (16 chapters)
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iOS 5 Essentials
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iOS 5 Essentials
Credits
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Credits
Foreword
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Foreword
About the Author
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About the Author
Acknowledgements
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Acknowledgements
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
What's New in iOS5
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What's New in iOS5
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What's new in iOS 5
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Getting and installing the iOS 5 SDK
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Creating the MyMagazineArticle application
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Creating the MyEmailApp application
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Building and running the MyEmailApp application
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Summary
2
Using iCloud and the Storage APIs
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Using iCloud and the Storage APIs
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Comparing Apple iCloud and Google Docs
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Storing and using documents in iCloud
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Summary
3
Debugging with OpenGL ES
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Debugging with OpenGL ES
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Understanding the new workflow feature within Xcode
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Error handling in OpenGL ES
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Summary
4
Using Storyboards
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Using Storyboards
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Understanding Storyboards
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Summary
5
Using AirPlay and Core Image
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Using AirPlay and Core Image
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Understanding the AirPlay framework
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Summary
6
Xcode Tools - Improvements
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Xcode Tools - Improvements
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LLVM compiler
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Summary
7
Making your Applications Run Smoothly using Instruments
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Making your Applications Run Smoothly using Instruments
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Introduction to Instruments
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Adding and configuring Instruments
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What's new in Instruments
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Summary
1
Index
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Index

Chapter 7. Making your Applications Run Smoothly using Instruments

Well done for making it to the final chapter of this book. In this chapter, we will focus on how we can effectively use Instruments within our applications to track down areas within our iOS applications that could be affecting the overall performance.

These types of issues could potentially cause our applications to run slowly or even crash on the user's iOS device. We will take a look into each of the different types of built-in instruments, which come as a part of the Instruments application, and how we can use the System Trace for iOS instruments to help you track down system calls, memory, and threads within your code that may be affecting the application's performance on your iOS applications.

We then take a look at how we can configure instruments to display data differently within the trace document that is being reported.

In this chapter, we will be covering the following topics:

  • Introducing the Instruments environment...

CONTINUE READING
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Tech Concepts
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Programming languages
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iOS 5 Essentials
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