TabBar

TabBar control. Build it with the tab_bar helper.

Example

tab_bar(
  expand: true,
  width: 240,
  height: 120,
  on_click: ->(event) {}
)

Properties

• adaptive — Adapts to the platform (Material/Cupertino) when true.
• divider_color — Divider color.
• divider_height — Divider height.
• enable_feedback — Plays touch feedback (sound/haptic) on interaction.
• indicator — Sets the indicator property.
• indicator_animation — Sets the indicator animation property.
• indicator_color — Indicator color.
• indicator_size — Sets the indicator size property.
• indicator_thickness — Sets the indicator thickness property.
• label_color — Label color.
• label_padding — Label padding.
• label_text_style — Label text style.
• mouse_cursor — Cursor shown when hovering the control.
• overlay_color — Overlay color.
• padding — Inner spacing between the border and the content.
• scrollable — Sets the scrollable property.
• secondary — Sets the secondary property.
• splash_border_radius — Splash border radius.
• tab_alignment — Tab alignment.
• tabs — The tabs to display.
• unselected_label_color — Unselected label color.
• unselected_label_text_style — Unselected label text style.

Common layout and animation properties

• align — Alignment of the control within its parent.
• animate_align — Animates alignment changes.
• animate_margin — Animates margin changes.
• animate_offset — Animates offset changes.
• animate_opacity — Animates opacity changes.
• animate_position — Animates position changes.
• animate_rotation — Animates rotation changes.
• animate_scale — Animates scale changes.
• animate_size — Animates size changes.
• aspect_ratio — Width-to-height ratio to maintain.
• badge — Badge drawn on the corner of the control.
• bottom — Bottom offset when positioned inside a stack.
• col — Responsive column span (1-12) per breakpoint.
• data — Arbitrary value you can attach to the control and read back in handlers.
• disabled — Disables interaction when true.
• expand — Fills the available space along the parent's main axis when true.
• expand_loose — Like expand, but only grows up to the child's natural size.
• height — Fixed height in logical pixels.
• key — Stable identity used to preserve state across rebuilds.
• left — Left offset when positioned inside a stack.
• margin — Outer spacing around the control.
• offset — Translation offset applied to the control.
• opacity — Opacity from 0.0 (transparent) to 1.0 (opaque).
• right — Right offset when positioned inside a stack.
• rotate — Rotation applied to the control.
• rtl — Renders right-to-left when true.
• scale — Scale transform applied to the control.
• size_change_interval — Throttle interval for on_size_change, in ms.
• tooltip — Text shown on hover/long-press.
• top — Top offset when positioned inside a stack.
• visible — Hides the control when false.
• width — Fixed width in logical pixels.

Events

• on_animation_end — Fired when an animation completes.
• on_click — Fired when the control is clicked/tapped.
• on_hover — Fired when the pointer enters/leaves the control.
• on_size_change — Fired when the control's size changes.

Reference

• Family: materials
• Widget type: tabbar
• Helpers: tab_bar, tabbar