PKCanvasViewDelegate

Declaration

@MainActor protocol PKCanvasViewDelegate : UIScrollViewDelegate

Overview

Implement the methods of the PKCanvasViewDelegate protocol to monitor drawing events in a PKCanvasView object. Specifically, determine the start- and end-of-event sequences using the currently selected tool, and determine when those events affect the drawn content.

Topics

Responding to drawing-related changes

• canvasViewDrawingDidChange(_:)
• canvasViewDidFinishRendering(_:)

Responding to new event sequences

• canvasViewDidBeginUsingTool(_:)
• canvasViewDidEndUsingTool(_:)

Relationships

Inherits From

• NSObjectProtocol
• UIScrollViewDelegate

See Also

Responding to drawing-related changes

• delegate