How to modify an animation property from Flutter

[abdlrhmanshehatamoussa]

I know that you can change some properties for the AnimationActor like the color for example, but can i change the speed for the moving object from flutter or the path of its motion?

Thanks

[luigi-rosso]

Using a controller you can apply an animation more quickly by speeding up the elapsed time. Take a look at

Flare-Flutter/example/penguin_dance/lib/main.dart

Line 47 in d011950

_rockTime += elapsed * _speed;

.

If you wanted to actually manipulate the speed of a single specific object in your animation, you'd have to manipulate the keyframe time/values which is currently not easy to do. It's possible, but it'd be quite tedious as we don't have an API for easily doing this at runtime. Do you have an example use case you could share? We might be able to find a good way for you to achieve the same result in a different way. For example, in the Space Reload demo, we achieve this by breaking the animation into multiple overlapping parts so we can speed one part up.

We can also add a feature request to our roadmap that fits exactly what you want.

[umberto-sonnino]

We also have a tutorial on our Flare API, and specifically on how to build custom FlareController over here.