This repository is filled with helping code for UIDynamics stuff. All of the UIDynamics Helpers are housed in the top level "MFLDynamicsHelpers" folder, and their are use examples throughout.
###MFLAlphaCollision - Image To Boundary - Alpha Only Collisions
This class will help you create a boundary behavior for any arbitrary image. It will trace any non zero alpha pixels in an image, and then construct a UIBezierPath from the result to use as a boundary.
[MFLAlphaCollision addBoundaryToBehavior:self.collisionBehavior
withImageView:self.boundaryImageView
forIdentifier:@"someIdentifier"];
OR
[MFLAlphaCollision addBoundaryToBehavior:self.collisionBehavior
withView:self.complicatedView
forIdentifier:@"someIdentifier"];
###MFLBoundaryPreview - Trace Boundaries
This class will allow you to trace all on screen boundaries simply and easily to make it much easier to test your path drawing.
To begin tracing all of your boundaries, change the class of your UIView to MFLBoundaryPreview and set your view's MFLBoundaryPreviewDelegate to your UIViewController, ensuring it has a property named collisionBehavior.
Thanks to Andy Finnell for his Magic Wand implementation for inspiration: http://losingfight.com/blog/2007/08/28/how-to-implement-a-magic-wand-tool/
###Shameless Self Promotion Consider this repository under the Beerware License, of which I will collect on if you're ever in Chicago. If you feel like showing your appreciation, drop me a couple bucks at the Binpress page for this control: http://www.binpress.com/app/uidynamics-helpers/1643