KeyboardListener

KeyboardListener control. Build it with the keyboard_listener helper.

Example

keyboard_listener(
  content: text("KeyboardListener"),
  expand: true,
  on_key_down: ->(event) {}
)

Properties

• autofocus — Requests focus when first shown.
• content — The single child control rendered inside this control.
• include_semantics — Sets the include semantics property.

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_key_down — Fired on key down.
• on_key_repeat — Fired on key repeat.
• on_key_up — Fired on key up.

Reference

• Family: shared
• Widget type: keyboardlistener
• Helpers: keyboard_listener, keyboardlistener