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I want to create an animation that interpolates some property for 2 seconds and only 20 frames (presentation layers) have to be generated by the CoreAnimation framework. I know how to provide a duration for the explicit animation but which property do I have to change in order to get particular number of frames calculated by interpolation process?
Thanks in advance.
Core Animation works by using interpolation–calculating intermediate values in between key values you specify. If it’s a keyframe animation, it interpolates between the number (n) of values in your values array. If it’s a basic animation, it interpolates between two values–your start and end values. If you just want to change the frame rate of the animation instance go through this How to change the frame rate of a core animation instance?