PencilKit

Essentials 3

Display an interactive drawing canvas and choose how it interprets Apple Pencil and touch input.

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  PKCanvasViewiOS 13.0+

  A view that lets people draw interactively and displays drawing content.
• En
  PKCanvasViewDrawingPolicy

  A policy that controls which input types can draw on the canvas.
• En
  PKContentVersioniOS 17.0+

  A version that specifies which PencilKit features a drawing uses or requires.

Drawing Tools 4

The inking, erasing, and selection tools people use to draw, remove, and select strokes on the canvas.

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  PKTooliOS 13.0+

  A protocol adopted by the tools that draw, erase, and select ink on a canvas.
• St
  PKInkingTooliOS 13.0+

  A tool that draws ink strokes with a specified ink type, color, and width.
• St
  PKEraserTooliOS 13.0+

  A tool that erases ink, either by whole strokes or by pixel area, on the canvas.
• St
  PKLassoTooliOS 13.0+

  A tool that selects strokes by drawing a freeform lasso around them.

Tool Picker 7

Present a palette of tools and configure or extend the items it displays.

• Cl
  PKToolPickeriOS 13.0+

  A user interface for selecting a PKTool.
• Cl
  PKToolPickerItemiOS 18.0+

  A user interface for a tool item in PKToolPicker.
• Cl
  PKToolPickerInkingItemiOS 18.0+

  A user interface for an inking tool item in PKToolPicker.
• Cl
  PKToolPickerEraserItemiOS 18.0+

  A user interface for an eraser tool item in PKToolPicker.
• Cl
  PKToolPickerLassoItemiOS 18.0+

  A user interface for a lasso tool item in PKToolPicker.
• Cl
  PKToolPickerCustomItemiOS 18.0+

  A user interface for a custom tool item in PKToolPicker.
• En
  PKToolPickerVisibilityiOS 26.0+

  The visibility state of a tool picker.

Drawings and Strokes 6

The captured artwork and the individual strokes, paths, and points that compose it.

• St
  PKDrawingiOS 13.0+

  A value type that captures the hand-drawn content of a canvas as a collection of strokes.
• St
  PKStrokeiOS 14.0+

  A value that represents a single stroke, including its path, ink, and transform.
• St
  PKStrokePathiOS 14.0+

  A value that describes the shape of a stroke as an interpolated sequence of points over time.
• St
  PKStrokePointiOS 14.0+

  A value that captures a sampled point along a stroke, including location, force, and azimuth.
• St
  PKInkiOS 14.0+

  PKInk provides a description of how marks on a PKCanvas render and are created.
• Ac
  PKStrokeRecognizeriOS 27.0+

  An actor that recognizes handwritten strokes and searches for text in a drawing.

Objective-C Interoperability 10

Reference-type bridges that expose PencilKit value types to Objective-C and key-value coding.

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  PKDrawingReferenceiOS 13.0+

  The data model for a drawing that a `PKCanvasView` displays.
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  PKStrokeReferenceiOS 14.0+

  The data model value representing a stroke in a `PKDrawing`.
• Cl
  PKStrokePathReferenceiOS 14.0+

  A uniform cubic B-spline representing the point data of a `PKStroke`.
• Cl
  PKStrokePointReferenceiOS 14.0+

  A value that stores all attributes of a stroke at a specific point.
• Cl
  PKConvertedBezierPointReferenceiOS 27.0+

  Information about a B-spline control point converted from a Bézier path.
• Cl
  PKInkReferenceiOS 14.0+

  PKInk provides a description of how marks on a PKCanvas render and are created.
• Cl
  PKInkingToolReferenceiOS 13.0+

  A tool for drawing on a PKCanvasView.
• Cl
  PKEraserToolReferenceiOS 13.0+

  An eraser tool for erasing parts of a drawing.
• Cl
  PKLassoToolReferenceiOS 13.0+

  A lasso tool for selecting parts of a drawing.
• Cl
  PKResponderStateiOS 26.0+

  The state of PencilKit behavior related to a `UIResponder`.

Protocols 2

• Pr
  PKCanvasViewDelegateiOS 13.0+

  The optional methods a delegate receives from editing-related changes to the canvas view.
• Pr
  PKToolPickerObserveriOS 13.0+

Extends 2