handleKeyEvent method

@override void handleKeyEvent(KeyEvent event)

Handles user key inputs to update the internal value.

Implementation

@override
void handleKeyEvent(KeyEvent event) {
  if (options.isEmpty) return;

  if (event.type == KeyType.up) {
    _selectedIndex = (_selectedIndex - 1).clamp(0, options.length - 1);
    value = options[_selectedIndex].value;
    if (_state != null) {
      _state!.setState(() {});
    }
  } else if (event.type == KeyType.down) {
    _selectedIndex = (_selectedIndex + 1).clamp(0, options.length - 1);
    value = options[_selectedIndex].value;
    if (_state != null) {
      _state!.setState(() {});
    }
  }
}