When adding NSTextView in xib, we see it is embedded under NSClipView. But if we try to use NSClipView to replicate what's in the xib, it does not scroll.
To make it work, we can follow Putting an NSTextView Object in an NSScrollView and How to make scrollable vertical NSStackView to make our ScrollableInput
For easy Auto Layout, we use Anchors for UIScrollView.
Things worth mentioned for vertical scrolling
textContainer.heightTracksTextView = false textView.autoresizingMask = [.width] textView.isVerticallyResizable = true class ScrollableInput: NSView { let scrollView = NSScrollView() let textView = NSTextView() override init(frame frameRect: NSRect) { super.init(frame: frameRect) let rect = CGRect( x: 0, y: 0, width: 0, height: CGFloat.greatestFiniteMagnitude ) let layoutManager = NSLayoutManager() let textContainer = NSTextContainer(size: rect.size) layoutManager.addTextContainer(textContainer) textView = NSTextView(frame: rect, textContainer: textContainer) textView.maxSize = NSSize(width: 0, height: CGFloat.greatestFiniteMagnitude) textContainer.heightTracksTextView = false textContainer.widthTracksTextView = true textView.isRichText = false textView.importsGraphics = false textView.isEditable = true textView.isSelectable = true textView.font = R.font.text textView.textColor = R.color.text textView.isVerticallyResizable = true textView.isHorizontallyResizable = false addSubview(scrollView) scrollView.hasVerticalScroller = true scrollView.drawsBackground = false scrollView.drawsBackground = false textView.drawsBackground = false activate( scrollView.anchor.edges ) scrollView.documentView = textView textView.autoresizingMask = [.width] } required init?(coder decoder: NSCoder) { fatalError() } } Original post https://github.com/onmyway133/blog/issues/330
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