Optimize your iPhone App for the Retina Display

The Foundation framework provides the “nuts and bolts” classes for both iPhone OS and Mac OS programming, and an understanding of the Foundation framework is essential for building great software on the Mac, iPhone, and iPad. Learn about the wide-ranging capabilities of the Foundation framework and discover how to best use features like collections, strings, archiving, notifications, preferences, bundles, and more.

Even the best apps crash sometimes. Diagnosing and fixing your app’s crashes can make the difference between improving it or losing your customers. Learn the skills you need to identify and fix your crashes and avoid common pitfalls.

Apple leads the computing industry in accessibility. Snow Leopard provides many features to help you create Mac OS X applications that everyone can use. Learn about the universal-design principles you should use when building a user interface, and learn techniques for making existing interfaces accessible to a wider audience.

iPad and iPhone provide a great environment for designing compelling apps that are rich in functionality and simple to use. Gain key insights into what it takes to create amazing iPhone and iPad apps. Learn how to re-imagine your iPhone or desktop apps for iPad. Understand how some significant differences between iPhone and iPad affect your design decisions.