UIView.backgroundColor spring animation bug

Originator:an00na
Number:rdar://27854815 Date Originated:15-Aug-2016 05:02 PM
Status:Open Resolved:
Product:iOS SDK Product Version:10.0 beta 6
Classification:Serious Bug Reproducible:Always
 
Summary:
When running an underdamped spring animation for UIView.backgroundColor from UIColor.clear color to UIColor.black, there is a short period near the end — overshooting period I guess — during which the background color jumps back from black to clear.

I guess it has something to do with the new extended color spaces in iOS 10.

You can change the animation to normal animation or increment the damping to over 0.9 to see the correct behavior.

Steps to Reproduce:
Run the sample playground.

Regression:
Only on iOS 10.

Code: https://cloudup.com/ihWiqlVxt1A

Comments

I just found the same bug. Any known workarounds?

By ethan at Sept. 19, 2016, 4:32 a.m. (reply...)

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