Hi,

I'm having the following crash, sometimes in a transition:

Crashed: com.apple.main-thread
0 Hero 0x102bc6940 HeroContext.snapshotView(for : UIView) -> UIView (HeroContext.swift:182)
1 Hero 0x102bfdbbc HeroDefaultAnimator.animate(view : UIView, appearing : Bool) -> () (HeroDefaultAnimator.swift:107)
2 Hero

Describe the feature or problem you’d like to solve

Currently, when showing skeletons in a table/collection/scroll view, it feels kinda bad (imho) that user interaction or scrolling is disabled.

Proposed solution

Add some kind of flag to allow views to scroll while skeletons are visible?

Global or per-scroll view?

我不知道是不是我没设置对，我用Storyboard拖了一个Controller，然后加上了TableView和TableViewCell，然后复制了demo里xib的部分代码，运行没有效果，一片白，查看图层是有好多Cell的，但是没有子控件的影子。

Currently, the framework is lagging unit testing. Add some unit test.