In this chapter, you learned how to check performance and find bugs. You started with Instruments, learning the types of information you can gather. Then you used Instruments to find and fix an app performance problem.
Next, you took a tour of the debugger and learned the power of breakpoints. Then you applied that knowledge in a practical example of editing breakpoints. Finally, you used the power of Instruments and the debugger together to solve one of the hardest types of bugs.
Along the way, you learned about call tree mining, a method for finding and fixing problems with Instruments, and the value of background tasks.
Your application toolkit is complete. You can design and implement apps for iPhone/iPod touch and iPad, and you ...