Multi-touch, Core Animation (CAReplicatorLayer) iPad app.
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Magic Fingers App (iOS 5)

Created by Brian Coyner

App Details

The app tracks multiple touches. A CAReplicatorLayer spins a star image around each touch. The "options" popover allows the user to manipulate the CAReplicatorLayer while your fingers are down.


  • Multi-touch tracking
  • Core Animation (CAReplicatorLayer and CABasicAnimation) to spin a star image around each touch
  • Key Value Coding (KVC) and Key Value Observing (KVO)
  • UITableViewController with custom cells that control the BTSMagicOptions object.