This package is filled with helping code for UIDynamics. All of the UIDynamics Helpers are housed in the top level "MFLDynamicsHelpers" folder, and there are use examples throughout. This set of classes will save you hours of time when working with Collision Systems, allowing you to set up and test complicated collision boundaries in no time flat.
MFLAlphaBoundary will allow you to create complicated boundaries from a masking image, by tracing your image programmatically to find the non-transparent edges. It can even trace an entire UIView and turn it into a boundary system, if for example, you wanted to have objects fall and interact with your UI.
MFLBoundaryPreview is a UIView subclass that will trace all of your boundaries on screen, allowing you to easily debug your boundary setup.
MFLDynamicsHelpers require iOS7 and above. The .png assets included are just for demonstration purposes and buying this package conveys no license to use them commercially.