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Sams Teach Yourself iPhone Application Development in 24 Hours by John Ray, Sean Johnson

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Hour 10. Making Multivalue Choices with Pickers

What You’ll Learn in This Hour:

The types of Pickers available in the iPhone SDK

How to implement the date picker object

The capabilities offered by custom picker views

The steps to implement the picker view protocols

Ways to customize the display of a picker view

This hour marks a turning point in our lessons. With few exceptions, the past several hours presented iPhone interface components that you add to your applications. These typically involved accessing a few properties or trapping an event to execute an action. In this hour, the formula starts to change. We’ll be exploring pickers—a unique UI element that both presents information to users and collects their input. ...

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