CGAffineTransform scale and translation - jump before animation

Question

I am struggling with an issue regarding CGAffineTransform scale and translation where when I set a transform in an animation block on a view that already has a transform the vie

Answer 1

Looks like Apple UIView animation internal bug. When Apple interpolates CGAffineTransform changes between two values to create animation it should do following steps:

• Extract translation, scale, and rotation
• Interpolate extracted values form start to end
• Assemble CGAffineTransform for each interpolation step

Assembling should be in following order:

• Translation
• Scaling
• Rotation

But looks like Apple make translation after scaling and rotation. This bug should be fixed by Apple.