Sams Teach Yourself Mac OS® X Lion™ App Development in 24 Hours

Hour 18. Using Popovers

What you’ll learn in this hour:

• Introduction to Popovers

• When to Use Popovers

• Creating Popovers

• Customizing Popovers

• Creating Detachable Popovers

Popovers are an Apple technology that first appeared on the iPad. They provided an advanced user interface that allowed developers to “pop over” additional views that appeared to be contextually attached to some piece of the main interface.

In this hour, you’ll learn what Popovers are, when they should be used, and how to create them. You’ll also learn advanced techniques to customize Popovers and even create Popovers that can be detached from their contextual source just by dragging the window.

Introducing Popovers

The NSPopover class provides a way to display additional ...