PDFView setNeedsDisplay:YES doesn't work on MacOS Sierra 10.12

Question

I have use [PDFView setNeedsDisplay:YES] to let the PDF view redraw, and it worked great on OSX 10.9-10.11. However it doesn\'t work unless I zoom in or zoom o

Answer 1

I'm having the same trouble. The first time I add an annotation, PDFView displays that annotation on the page immediately. From then on, adding or removing an annotation works fine in code but PDFView doesn't show the change until I manually scroll the view.

From PDFKit I've tried:

previewView.layoutDocumentView()

for pageIndex in 0...pdf.pageCount - 1 {
  let page = pdf.page(at: pageIndex)!
  previewView.annotationsChanged(on: page)
}

and from NSView I've tried:

previewView.needsDisplay = true
previewView.needsLayout = true
previewView.documentView?.needsDisplay = true
previewView.updateLayer()

but no luck. I've tried scrolling the PDFView with code too but it hasn't been a reliable way of sneaking a refresh, and in general shouldn't be the way to do this.