React-spring: [react-native] Cannot animate shadowOffset props on iOS

[flsilva]

🐛 Bug Report

I'm trying to animate shadowOffset props (width and height) on iOS and getting the following error:

I don't know if that's a react-spring issue, or a React Native's limitation that we can work around. Please let me know what you think.

To Reproduce

Try to animate shadowOffset's width and height (see link to repo below).

Expected behavior

We should be able to animate those props like any other.

Link to repro

I've created a GitHub repository to reproduce the bug. Please take a look at it and read instructions and more details on its README file:

https://github.com/flsilva/react-spring-ios-shadow-issue

Environment

• react 16.8.6
• react-native 0.59.5
• react-spring 9.0.0-beta.3

But the issue can also be seen using react-spring 8.0.19.

Thank you for your time and work.

[aleclarson]

@flsilva This is now supported in v9.0.0-beta.4

Give it a try and LMK how it goes 👍

[flsilva]

@aleclarson Amazing! I've just tested it in v9.0.0-beta.5 and it works! Thank you for your great work.