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Learning iOS Development: A Hands-on Guide to the Fundamentals of iOS Programming by Erica Sadun, Rod Strougo, Maurice Sharp

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Bounce Scrolling

As users get familiar with iOS, they get used to scrolling. When experienced users get a new app, one of the first things they do is try to scroll the screen up and down. A screen with more content scrolls. But what about for screens that show everything? How does a user know that everything is shown?

One nice user experience feature is “bounce” scrolling of the screen—that is, moving down or up a little and then gently scrolling right back. The bounce feedback tells users they are seeing everything. In this section, you add bounce scrolling to the add/view car scene in the CarValet app.

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