8. Common Controllers
The iOS SDK provides a wealth of system-supplied controllers that you can use in your day-to-day development tasks. This chapter introduces some of the most popular ones. You’ll read about selecting images from your device library, snapping photos, and recording and editing videos. You’ll discover how to allow users to compose e-mails and text messages, and how to post updates to social services like Twitter and Facebook. Each controller offers a way to leverage prepackaged iOS system functionality. Here’s the know-how you need to get started using them.
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