Bug in POPSpringAnimation in OSX (Model Layer not updated when animation complete) about pop HOT 8 CLOSED

The way POP works is by updating the layer values for each frame in the animation — it does not affect the presentation tree. Because of that, it shouldn't do anything to set the bounds to the destination rectangle after the animation completes.

If you print the layer's bounds at the end of the animation, what do you see? Could you post a sample project that demonstrates this issue?

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printing the layer bounds when animation completes: {{105, 180}, {300, 300}}
but the expected bounds is {{0, 0}, {300, 300}}

from pop.

actually I also have an anchorPoint set to (0.5,0.5) prior starting the animation ! this may cause the problem ?

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Note you're animating the bounds — maybe you want to adjust the position, rather than the bounds origin? That will help if you're trying to adjust the frame.

from pop.

Im not animating the bounds origin only the size. Im going from (0,0,0,0) to (0,0,300,300) but for some reasons the print at the end of the animation says (105, 180, 300, 300) which is weird and it is the reason why the layer disappear (because its origin changed and is now out of bounds)...

I will investigate further why this is happening.

from pop.

Hm, could you try using the animation tracer feature of Pop to log out the intermediate values? A sample project would be the simplest way to test this, but that might let us figure out how the animation is going.

You can use the tracer property on a POP animation to start, stop, and log out the animation events.

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If you create an NSView.bounds animatable property, and apply the spring to the view directly, does that address the problem?

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Let us know how you fare. If your investigation points at Pop bug, please reopen.

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