GoogleNavigation Framework Reference

AI-generated Key Takeaways

• GMSPolygonLayer is a subclass of GMSOverlayLayer used for animating properties of its associated GMSPolygon.

• This layer isn't directly rendered, as GMSMapView utilizes an OpenGL layer for rendering.

• Customizable properties include strokeWidth for outline width, strokeColor for outline color, and fillColor for the polygon's fill color.

• GMSPolygon is expected to manage the memory of strokeColor and fillColor.

GMSPolygonLayer

@interface GMSPolygonLayer : GMSOverlayLayer

GMSPolygonLayer is a subclass of GMSOverlayLayer, available on a per-polygon basis, that allows animation of several properties of its associated GMSPolygon.

Note that this CALayer is never actually rendered directly, as GMSMapView is provided entirely via an OpenGL layer. As such, adjustments or animations to ‘default’ properties of CALayer will not have any effect.

• strokeWidth

  The width of the polygon outline in screen points.

  Declaration

  Swift

  var strokeWidth: CGFloat { get set }

  Objective-C

  @property (nonatomic) CGFloat strokeWidth;

• strokeColor

  The color of the polygon outline. This is an assign property, there is an expectation for the GMSPolygon to own the reference if necessary.

  Declaration

  Swift

  unowned(unsafe) var strokeColor: CGColor? { get set }

  Objective-C

  @property (nonatomic, nullable) CGColorRef strokeColor;

• fillColor

  The fill color. This is an assign property, there is an expectation for the GMSPolygon to own the reference if necessary.

  Declaration

  Swift

  unowned(unsafe) var fillColor: CGColor? { get set }

  Objective-C

  @property (nonatomic, nullable) CGColorRef fillColor;