Implementation of aspectRatio methods

• Add aspectRatio methods:

  • aspectRatio(_ ratio: CGFloat):
    Set the view aspect ratio. If a single dimension is set (either width or height), the aspect ratio will be used to compute the other dimension.
    • AspectRatio is defined as the ratio between the width and the height (width / height).
    • An aspect ratio of 2 means the width is twice the size of the height.
    • AspectRatio respects the min (minWidth/minHeight) and the max (maxWidth/maxHeight) dimensions of an item.
      Set all margins using an UIEdgeInsets.
      This method is particularly useful to set all margins using iOS 11 UIView.safeAreaInsets
  • aspectRatio(of view: UIView):
    Set the view aspect ratio using another UIView's aspect ratio.

  AspectRatio is applied only if a single dimension (either width or height) can be determined,
  in that case the aspect ratio will be used to compute the other dimension.

  • AspectRatio is defined as the ratio between the width and the height (width / height).
  • AspectRatio respects the min (minWidth/minHeight) and the max (maxWidth/maxHeight)
    dimensions of an item.

• aspectRatio():
  If the layouted view is an UIImageView, this method will set the aspectRatio using
  the UIImageView's image dimension.

  For other types of views, this method as no impact.

  • Added by Luc Dion in Pull Request #84

View build details and download artifacts on buddybuild:
PinLayout (iOS, PinLayout)
PinLayoutTVOS (iOS, PinLayoutTVOS)