Hour 17. Using Advanced Touches and Gestures
What You’ll Learn in This Hour:
• The multitouch gesture-recognition architecture
• How to detect taps
• How to detect swipes
• How to detect pinches
• How to detect rotations
• How to use the built-in shake gesture
A multitouch screen allows applications to use a wide variety of natural finger gestures for operations that would otherwise be hidden behind layers of menus, buttons, and text. From the very first time you use a pinch to zoom in and out on a photo, map, or web page, you realize that’s exactly the right interface for zooming. Nothing is more human than manipulating the environment with your fingers.
iOS provides advanced gesture-recognition capabilities that you can easily implement within ...