Pro IOS Apps Performance Optimization and Tuning

✍ Scribed by Khang Vo

• Publisher: Apress
• Year: 2011
• Tongue: English
• Leaves: 276
• Edition: 1
• Category: Library

✦ Synopsis

Today's iPhone and iPad apps developers are often running into the need to refine, improve and optimize their apps performances. As more complex apps can be created, it is even more important for developers to deal with this critical issue.    Pro iOS Apps Performance Tuning and Optimization covers many common but difficult problems when tuning and optimizing performance for iPhone and iPad apps and how to resolve these problems efficiently. This book gives you the following:      Basic knowledge on common problems in iPhone apps      Advanced knowledge over data structure, algorithms, multithreading, and network data in iPhone apps      Comparison with problems and solutions for Android and Windows Phone apps   After reading this must-have book, you'll be ready to make the most of the processing power of the iPhone with your apps performance optimization know-how.          What you’ll learn     Benchmark your apps using emulators and real device tests      Increase and optimize UITableView performance in your iOS apps      Increase your app performance using image and data caching techniques      Tune your apps using algorithms and data structures      Improve your parallel data access using multithreading techniques      Optimize memory usage for increased battery life and better apps performance      Use native C code to address memory leaks or EXEC_BAD_ACCESS   Who this book is for           iOS app developers who have basic knowledge of how to write apps and want to extend their knowledge and skills to write better or optimally-performing apps.             Table of Contents     Introduction to iOS App Performance      Benchmark Your Apps: Using Simulators, Emulators and Real Device Tests      Increase and Optimize UITableView Performance      Increase App Performance Using Image and Data Caching Techniques      Tune Your Apps Using Algorithms and Data Structures      Improve Parallel Data Access using Multithreading Techniques      Optimize Memory Usage for Increased Battery Life and Better Performance      Integrate Multithreading and Efficient Memory Usage for Multitasking Apps Performance      Use Native C Code to Address Memory Leaks or EXEC_BAD_ACCESS      Comparisons with Android and WinPhone Performance Problems

✦ Table of Contents

Cover......Page 266
Contents at a Glance......Page 3
Contents......Page 269
About the Author......Page 273
About the Technical Reviewer......Page 274
Acknowledgments......Page 275
Preface......Page 276
Why Performance Matters......Page 4
My Teaching Style......Page 5
An Overview of the Book......Page 6
Contact the Author......Page 8
Benchmark Your Apps with Tools: Simulators and Real Device Test......Page 9
Memory and Performance......Page 10
Basic Tools......Page 11
Memory Tools......Page 12
Summary......Page 39
Introduction to the Examples......Page 40
Other Techniques......Page 55
Performance for Editing/Reordering......Page 57
Summary......Page 58
Increase App Performance Using Image and Data Caching Techniques......Page 60
How to Identify the Bottleneck......Page 61
Introduction to Caching......Page 63
What You Should Cache......Page 73
Summary......Page 86
Tune Your App Using Algorithms and Data Structures......Page 87
First Example......Page 88
Theoretical Issues of Measuring Algorithmic Performance......Page 89
Practical Measurement......Page 93
Data Structure and Algorithms......Page 95
Other Algorithms and Problem-Solving Approaches......Page 130
Summary......Page 133
Improve Parallel Data Access using Multithreading Techniques......Page 136
What Are Threads and Multithreading?......Page 137
Threading Terminology......Page 138
First Example......Page 139
Benefits of Multithreading......Page 141
How to Write Multithreaded Applications......Page 142
Summary......Page 173
Optimize Memory Usage for Better Performance......Page 175
A Little Review......Page 176
Automatic Reference Counting......Page 178
Advanced Memory Issues......Page 182
UIViewController......Page 183
Object Copy......Page 186
Advanced Autorelease Pool......Page 189
Instruments......Page 190
Summary......Page 194
Integrate Multithreading and Efficient Memory Usage for Multitasking Apps Performance......Page 195
What is Multitasking in iPhone?......Page 196
Multitasking Life Cycle......Page 197
Background Services......Page 203
Summary......Page 214
Improve Performance with Native C/C++......Page 216
Benefits and Costs......Page 217
Basic C and C++ programming......Page 218
A Practical Example......Page 233
Summary......Page 235
Comparing Android and Windows Phone Performance Problems......Page 237
Benchmarking on Emulator and Devices......Page 238
ListView Performance......Page 242
Data Caching......Page 245
Data Structure and Algorithms......Page 249
Multithreading......Page 251
Memory Management......Page 254
Multitasking......Page 257
Support of C/C++ Programming......Page 258
Summary......Page 259
C......Page 261
F, G......Page 262
M, N......Page 263
U......Page 264
W, X, Y, Z......Page 265