12. Touch Basics
Gestures are everywhere. Tapping buttons, scrolling through lists, zooming images...most interactions with an iPhone or iPad are some sort of gesture. iOS provides lots of user interface elements with built-in gestures, but what if you want more?
That is what UIGestureRecognizer and related classes are for. They enable you to do things like attach a custom swipe or create your own recognizers. Setting up a recognizer can be as easy as writing an action method and making a few connections in Interface Builder (IB).
In this chapter, you add three recognizers to the CarValet app: One uses swipes to move through car details, another takes the iPad app back home, and the last one tracks a finger. First, you learn the basics of gesture ...
Get Learning iOS Development: A Hands-on Guide to the Fundamentals of iOS Programming now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
