Removing content in PencilKit

Question

When using PencilKit in iOS 13/iPadOS, how do you remove all content from the screen, or remove those content selected (via lasso)?

I can't find any functions in PKDrawing or PKCanvasView that do these?

Jordan H · Answer 1 · 2019-06-21T04:16:00.447

7

You can clear the drawing on the PKCanvasView by simply setting the drawing property equal to a new empty PKDrawing.

canvasView.drawing = PKDrawing()

edited Jun 21 '19 at 04:16

answered Jun 21 '19 at 00:11

Jordan H

1

Thanks! Is there anything else we can do with the selected (lasso) content? – Lim Thye Chean Jun 21 '19 at 03:46
That I have not used – Jordan H Jun 21 '19 at 04:13
Do you know how to undo/redo the drawing then? Since the whole PKDrawing is opaque. – Lim Thye Chean Jun 24 '19 at 03:09
this crashes for me as of beta 6 – cyril Aug 17 '19 at 09:55

1 Answers1