Swift support

[RaoulNL]

Archive.zip
Hi,

Great stuff to find here!
I have examined your code and converted into Swift. However, the animation is not working properly, but the rounded corners are.

Are you willing to examine my code and fix the animation? I have added both files in a zip file.

Regards, Raoul.

[siggb]

PR with rounded corners: #6

[libern]

+1