Column

A vertical layout control for stacking children.

Example

column(
  spacing: 12,
  children: [
    text(value: "Title", style: { size: 24 }),
    text(value: "Subtitle"),
    text_field(label: "Name")
  ]
)

Common properties

• children
• spacing
• expand
• horizontal_alignment
• scroll

Usage

page.add(
  column(
    spacing: 10,
    children: [
      text(value: "Profile"),
      text_field(label: "Display name")
    ]
  )
)

Notes

• children should be an array of controls
• column is one of the most common layout primitives in Ruflet apps

Complete API

Helpers

• column(children = ..., **props, &block)

Accepted properties

• adaptive — Adapts to the platform (Material/Cupertino) when true.
• align — Alignment of the control within its parent.
• alignment — Alignment of the content within the control.
• 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.
• auto_scroll — Sets the auto scroll property.
• 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.
• controls — The list of child controls.
• 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.
• horizontal_alignment — Horizontal alignment.
• intrinsic_width — Intrinsic width.
• 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.
• run_alignment — Run alignment.
• run_spacing — Sets the run spacing property.
• scale — Scale transform applied to the control.
• scroll — Sets the scroll property.
• scroll_interval — Sets the scroll interval property.
• size_change_interval — Throttle interval for on_size_change, in ms.
• spacing — Sets the spacing property.
• tight — Sets the tight property.
• 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.
• wrap — Sets the wrap property.

Events

• on_animation_end — Fired when an animation completes.
• on_scroll — Fired when the scroll position changes.
• on_size_change — Fired when the control's size changes.

Wire reference

• Family: shared
• Widget type: column