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Sams Teach Yourself iOS 6 Application Development in 24 Hours, Fourth Edition by John Ray

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Hour 12. Making Choices with Toolbars and Pickers

What You’ll Learn in This Hour:

• The use of toolbars and pickers in iOS application interfaces

• How to implement the date picker object

• Ways to customize the display of a picker view

• The relationship between pickers, toolbars, and popovers

• How to implement a single content class for modal views and popovers

In this hour, we continue multiview application development in our tutorials, but our primary focus is on two new user interface elements: toolbars and pickers. Toolbars present a set of common functions in a static bar at the top or bottom of the screen. A picker is a unique UI element that both presents information to users and collects their input.

Whereas toolbars are similar ...

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