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The iPhone™ Developer’s Cookbook: Building Applications with the iPhone 3.0 SDK, Second Edition by Erica Sadun

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9. Building and Using Controls

The UIControl class provides the basis for many iPhone interactive elements, including buttons, text fields, sliders, and switches. These onscreen objects have more in common than their ancestor class. Controls all use similar layout and target-action approaches. This chapter introduces controls and their use. You discover how to build and customize controls in a variety of ways. From the prosaic to the obscure, this chapter introduces a range of control recipes you can reuse in your programs.

The UIControl Class

On the iPhone, controls refer to a library of prebuilt onscreen objects designed for user interaction. Controls include buttons and text fields, sliders and switches, along with other Apple-supplied objects. ...

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