IBAnimatable without Interface Builder

[JakeLin]

Currently, we need to use the subclass like AnimatableView. If we can provide an extension property like ib to UIKit components, then we can use the properties from the protocols e.g. Animatable, CornerRadiusDesignable etc. Then we can use this ib property to set the animatable or designable properties like view.ib.cornerRadius = 20 in code. view is a just pure UIView not AnimatableView.

Since IBAnimatable has some powerful protocols, some developer they don't want to use the subclasses (e.g. AnimatableView) and they don't want to make a subclass by themselves. Providing an extension property ib can help them use IBAnimatable easily.

[tbaranes]

Support for UIView:

• Basics Introducing "IB" #no-public-changes #529
• BorderDesignable Add support for BorderDesignable in ib #no-public-changes #531
• RotationDesignable Add RotationDesignable support to ib #no-public-changes #532
• ShadowDesignable Add ShadowDesignable support to IB #no-public-changes #533
• BlurDesignable Add BlurDesignable support to IB #no-public-changes #534
• GradientDesignable Add GradientDesignable support to IB #no-public-changes #535
• MaskDesignable Add MaskDesignable support to IB #no-public-changes #536

[tbaranes]

Here a list of what's left once #536 is merged:

• Documentation: we need to clarify how we want to do it
• Demo app: is this necessary?
• Support of Animatable: that one is a hard one because everything is depending of UIView
• Extends ib to more types (BarButton, ...)

If anyone wants to pick one of these task, feel free to do it. I won't have time to work on these during the next weeks 😬