December 2009
Beginner to intermediate
888 pages
23h 33m
English
book
The iPhone™ Developer’s Cookbook: Building Applications with the iPhone 3.0 SDK, Second Edition
by Erica Sadun
Content preview from The iPhone™ Developer’s Cookbook: Building Applications with the iPhone 3.0 SDK, Second Edition
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10. Alerting Users
At times, you need to grab your user’s attention. New messages might arrive or the system status might change. You might want to tell your user that there’s going to be a wait before anything more happens—or that the wait is over and it’s time to come back and pay attention. The iPhone offers many ways to provide that heads-up to the user: from alerts and progress bars to audio pings. In this chapter, you discover how to build these indications into your applications and expand your user-alert vocabulary. You see real-life examples that showcase these classes and discover how to make sure your user pays attention at the right time.
Talking Directly to Your User Through Alerts
Alerts speak to your user. Members of the UIAlertView ...