Chain-able animations

[JakeLin]

Better syntax for chaining animations.

Just an idea

Animation(view).pop(repeatCount: 2).then.shake(repeatCount:1).and.rotate(.cw, repeatCount:2)

[shshalom]

Hi @JakeLin, Is there any chance to push this to an earlier version? that's my only blocker from using this great framework.

[JakeLin]

@shshalom I don't have any plan to work on this feature yet. If you would like to take the initiative, please go head, I will offer some help if I can.

[shshalom]

I might do that :-).

I wonder, how should we go about this. did you had anything in mind? maybe follow some other similar library that does it?

[JakeLin]

@shshalom great, I don't have a concrete idea how can we do it, I think there are a few ways we can try.

1. Similar to https://github.com/Draveness/DKChainableAnimationKit
   which provides nice syntax like view.animation.makeScale(2.0).spring.animate(1.0), They provide an extension property called animation for all UIView objects in https://github.com/Draveness/DKChainableAnimationKit/blob/master/DKChainableAnimationKit/Classes/UIView%2BAnimationKit.swift#L15 . I don't think we need to do it as an extend method / property for UIView because we use protocol orientated programming pattern. It can be a property of Animatable protocol. They also used Objective-C black magic objc_getAssociatedObject because the library was ported from https://github.com/jhurray/JHChainableAnimations . I don't mind but we try to avoid it in IBAnimatable if possible.
2. Some Promise / Future support like https://github.com/mxcl/PromiseKit, https://github.com/Thomvis/BrightFutures, or https://github.com/FutureKit/FutureKit
   They provide comprehensive features to control the flow of animations. I think they are overkill for animation library like IBAnimatable. I prefer to have a simple solution for both API usage and implementation. But their ideas can be reused in some place.
3. Something simple I don't know yet.

We don't need to make a decision right now, we can have some spikes to try out different potential approaches. And make the decision once we get something. I think it will be a lot of fun😉 and a few of pains too.

[gkye]

https://github.com/AugustRush/Stellar is also a pretty good example

[shshalom]

@JakeLin Nice find, I'll get to it this weekend I hope.
I'll do some research and try to figure what would be the most simple and elegant approach.

@gkye Thanks for the link :-)

I'll post an update as soon I'll get some insights.

[tbaranes]

Closing in favor of #382