How to display two-line Suggestion menu with NSTextField

The hack is to use initialiser with AttributedString public init(representedValue: SuggestionItemType, attributedTitle: AttributedString) and "force" font using setAttributes

Another important note: If your minimum deployment target is macOS10.13 with @available(macOS 15, *) macro -> you will need to apply AttributedString even to the subtitle. With macOS10.15 as a minimum target you don't need to set attributes to subtitle.

/// Workaround for a macOS 15 AppKit regression. /// /// Suggestion cells only lay out correctly when using AttributedString with an /// explicit font attribute. Plain strings, or attributed strings without fonts, /// cause NSTableCellView to miscalculate row height, clipping the subtitle. func suggestionAttributedString(_ string: String, fontSize: CGFloat) -> AttributedString { var attributed = AttributedString(string) attributed.setAttributes( AttributeContainer([ .font: NSFont.systemFont(ofSize: fontSize) ]) ) return attributed } func locationItem(_ completion: MKLocalSearchCompletion) -> Item { var item = NSSuggestionItem( representedValue: completion, attributedTitle: suggestionAttributedString( completion.title, fontSize: NSFont.systemFontSize ) ) if !completion.subtitle.isEmpty { item.attributedSecondaryTitle = suggestionAttributedString( completion.subtitle, fontSize: NSFont.smallSystemFontSize ) } return item }