PDFKit Horizontal Scrolling

Question

Created Jul ’17

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It seems that horizontal scrolling is broken in b3 of iOS 11. Here's my code:

  let pdfView = PDFView(frame: frame)
  pdfView.document = pdfDocument
  pdfView.autoScales = true
  pdfView.displayDirection = .horizontal
  pdfView.displayMode = .singlePage

When I display this view, I see just the first page of the document. I can scroll vertically (and, judging by the scroll bar thumb size, quite a bit), but not horizontally. Without doing too much investigation, it looks like perhaps the content size of the PDFView's scroll view is being set for vertical content, not horizontal. Is anyone else seeing this?

Thanks!

Ben

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Answer 1

RyanTCB OP

Jul ’17

the

displayMode =.singlePageContinuous

allows for scrolling on the horizontal*

*though it doesnt zoom the pages to show one at a time like iBooks.

Im at a loss on how to do that so have posted a Q on this forum

if you set to

.singlePage

adding a GestureRecognizer will allow to change pages (showing a right to left swipe or backwards)

let swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(self.respondToSwipeGesture))
        swipeRight.direction = UISwipeGestureRecognizerDirection.right

then handle it

@objc func respondToSwipeGesture(gesture: UIGestureRecognizer) {
        if let swipeGesture = gesture as? UISwipeGestureRecognizer {
            switch swipeGesture.direction {
            case UISwipeGestureRecognizerDirection.right:
                print("Swiped back")
                if pdfView.canGoToPreviousPage() {
                    pdfView.goToPreviousPage(nil)
                }
            default:
                break
            }
        }
    }

add left swipe using same method

0