CNGlassButtonGroup class

A group of buttons that can be rendered together for proper Liquid Glass blending effects.

This widget renders all buttons in a single SwiftUI view, allowing them to properly blend together when using glassEffectUnionId.

On iOS 26+ and macOS 26+, this uses native SwiftUI rendering for proper Liquid Glass effects. For older versions, it falls back to Flutter widgets.

Breaking Change in v1.1.0: This widget now accepts CNButtonData models instead of CNButton widgets. Use the CNGlassButtonGroup.fromWidgets constructor for backward compatibility.

Example:

CNGlassButtonGroup(
  buttons: [
    CNButtonData.icon(
      icon: CNSFSymbol.house,
      onPressed: () => print('Home'),
    ),
    CNButtonData.icon(
      icon: CNSFSymbol.gear,
      onPressed: () => print('Settings'),
    ),
    CNButtonData(
      label: 'More',
      icon: CNSFSymbol.ellipsis,
      onPressed: () => print('More'),
    ),
  ],
  axis: Axis.horizontal,
  spacing: 8.0,
)