CheckboxFormField constructor

Implementation

CheckboxFormField({
  super.key,

  /// The title widget to display next to the checkbox.
  Widget? title,

  /// Called when the form is saved.
  super.onSaved,

  /// Called to validate the form field.
  super.validator,

  /// The initial value of the checkbox.
  bool initialValue = false,

  /// Called when the value of the checkbox changes.
  Function(bool?)? onChanged,
}) : super(
        initialValue: initialValue,
        builder: (FormFieldState<bool> state) {
          return CheckboxListTile(
            dense: state.hasError,
            title: title,
            value: state.value,
            onChanged: (bool? newValue) {
              if (newValue != null) {
                state.didChange(newValue);
                onChanged?.call(newValue);
              }
            },
            subtitle: state.hasError
                ? Builder(
                    builder: (BuildContext context) => Text(
                      state.errorText ?? "",
                      style: TextStyle(
                          color: Theme.of(context).colorScheme.error),
                    ),
                  )
                : null,
            controlAffinity: ListTileControlAffinity.leading,
          );
        },
      );