Easily specify CAKeyFrameAnimation curve using C functions or ObjC Class
CAKeyframeAnimation+Evaluators is a simple category of CAKeyframeAnimation which allows you to specify a custom function for your CAAnimation. Customization is available using a standard C function or an NSObject conforms to CAKeyFrameFunctionEvaluator protocol. Both methods allows you to return the value of your animated property frame by frame through the entire animation.
Daniele Margutti
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CAKeyFrameAnimation+Evaluators is available under the MIT license.
Copyright © 2013 Daniele Margutti
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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