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iPhone User Interface Cookbook by Cameron Banga

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Supporting undo and redo

Much like copy and paste, undo and redo are also expected and necessary tools for easy text management on iOS. For the user looking to write a long paper on iPad or keep class notes on an iPod touch, these tools are essential.

If we want to make our app universally acceptable, including these features is a must. Over the next few pages, we'll look at the positives and negatives of including such abilities.

Getting ready

Redo and undo require little design preparation; however we should make sure that copy and paste have already been implemented into our app. These two features typically come together hand-in-hand, and if we won't be including copy and paste into our work for some specific reason, we probably won't be including ...

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