Semantics

Semantics control. Build it with the semantics helper.

Example

semantics(
  value: "Sample",
  label: "Label",
  content: text("Semantics"),
  selected: true,
  on_tap: ->(event) {}
)

Properties

• button — Sets the button property.
• checked — Whether the control is checked.
• container — Sets the container property.
• content — The single child control rendered inside this control.
• current_value_length — Sets the current value length property.
• decreased_value — Sets the decreased value property.
• exclude_semantics — Sets the exclude semantics property.
• expanded — Sets the expanded property.
• focus — Sets the focus property.
• focusable — Sets the focusable property.
• header — Sets the header property.
• heading_level — Sets the heading level property.
• hidden — Sets the hidden property.
• hint_text — Placeholder shown when the field is empty.
• image — Sets the image property.
• increased_value — Sets the increased value property.
• label — Text label shown for the control.
• link — Sets the link property.
• live_region — Sets the live region property.
• max_value_length — Sets the max value length property.
• mixed — Sets the mixed property.
• multiline — Allows multiple lines of input when true.
• obscured — Sets the obscured property.
• read_only — Prevents editing while still allowing selection.
• selected — Whether the control is selected.
• slider — Sets the slider property.
• textfield — Sets the textfield property.
• toggled — Sets the toggled property.
• value — The control's current value.
• on_long_press_hint_text — On long press hint text.
• on_tap_hint_text — On tap hint text.

Common layout and animation properties

• badge — Badge drawn on the corner of the control.
• 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.
• key — Stable identity used to preserve state across rebuilds.
• opacity — Opacity from 0.0 (transparent) to 1.0 (opaque).
• rtl — Renders right-to-left when true.
• tooltip — Text shown on hover/long-press.
• visible — Hides the control when false.

Events

• on_copy — Fired on copy.
• on_cut — Fired on cut.
• on_decrease — Fired on decrease.
• on_did_gain_accessibility_focus — Fired on did gain accessibility focus.
• on_did_lose_accessibility_focus — Fired on did lose accessibility focus.
• on_dismiss — Fired when the control is dismissed.
• on_double_tap — Fired on a double tap.
• on_increase — Fired on increase.
• on_long_press — Fired on a long press.
• on_move_cursor_backward_by_character — Fired on move cursor backward by character.
• on_move_cursor_forward_by_character — Fired on move cursor forward by character.
• on_paste — Fired on paste.
• on_scroll_down — Fired on scroll down.
• on_scroll_left — Fired on scroll left.
• on_scroll_right — Fired on scroll right.
• on_scroll_up — Fired on scroll up.
• on_set_text — Fired on set text.
• on_tap — Fired on a tap.

Reference

• Family: shared
• Widget type: semantics
• Helpers: semantics