UIGraphicsImageRendererContext
The drawing environment for an image renderer.
Declaration
class UIGraphicsImageRendererContextOverview
When using the UIGraphicsImageRenderer drawing methods, you must pass a block of type UIGraphicsImageRenderer.DrawingActions as an argument, which provides a UIGraphicsImageRendererContext instance as an argument. Use the context object to access high-level drawing functions and the underlying Core Graphics context.
To learn how to use a UIGraphicsImageRendererContext object in combination with an image renderer, see Creating a graphics image renderer.