onTap property

VoidCallback onTap
final

Called when the item is tapped.

Never null: an icon in a navigation bar that does nothing is a bug, so GlassBarItem.icon requires one. Passive GlassBarItem.custom content gets an internal no-op instead, keeping every reader of it callable. GlassBarItem.menu does the same — its tap opens the menu, which the cluster drives directly.

Implementation

final VoidCallback onTap;