TxSwitchFormField constructor

TxSwitchFormField({ Key? key, FormFieldSetter<bool>? onSaved, FormFieldValidator<bool>? validator, bool? enabled, AutovalidateMode? autovalidateMode = AutovalidateMode.onUserInteraction, String? restorationId, InputDecoration? decoration, ValueChanged<bool?>? onChanged, bool? required, bool? initialValue, TextAlign? textAlign = TextAlign.end, Color? activeColor, Color? thumbColor, Color? trackColor, Color? onLabelColor, Color? offLabelColor, DragStartBehavior? dragStartBehavior, Color? focusColor, FocusNode? focusNode, ValueChanged<bool>? onFocusChange, bool? autofocus, bool? applyTheme, Widget? label, String? labelText, TextAlign? labelTextAlign, TextOverflow? labelOverflow, EdgeInsetsGeometry? padding, FieldActionsBuilder<bool>? actionsBuilder, TextStyle? labelStyle, double? horizontalGap, Color? tileColor, TxFormFieldBuilder<bool>? trailingBuilder, Widget? leading, VisualDensity? visualDensity, ShapeBorder? shape, Color? iconColor, Color? textColor, TextStyle? leadingAndTrailingTextStyle, GestureTapCallback? onTap, double? minLeadingWidth, bool? dense, bool? colon, double? minLabelWidth, double? minVerticalPadding, })

Implementation

TxSwitchFormField({
  super.key,
  super.onSaved,
  FormFieldValidator<bool>? validator,
  super.enabled,
  super.autovalidateMode,
  super.restorationId,
  super.decoration,
  super.onChanged,
  super.required,
  super.initialValue,
  TextAlign? textAlign = TextAlign.end,
  Color? activeColor,
  Color? thumbColor,
  Color? trackColor,
  Color? onLabelColor,
  Color? offLabelColor,
  DragStartBehavior? dragStartBehavior,
  Color? focusColor,
  FocusNode? focusNode,
  ValueChanged<bool>? onFocusChange,
  bool? autofocus,
  bool? applyTheme,
  super.label,
  super.labelText,
  super.labelTextAlign,
  super.labelOverflow,
  super.padding,
  super.actionsBuilder,
  super.labelStyle,
  super.horizontalGap,
  super.tileColor,
  super.trailingBuilder,
  super.leading,
  super.visualDensity,
  super.shape,
  super.iconColor,
  super.textColor,
  super.leadingAndTrailingTextStyle,
  super.onTap,
  super.minLeadingWidth,
  super.dense,
  super.colon,
  super.minLabelWidth,
  super.minVerticalPadding,
}) : super(
        layoutDirection: Axis.horizontal,
        builder: (field) {
          final AlignmentGeometry align = switch (textAlign) {
            null => AlignmentDirectional.centerStart,
            TextAlign.left => Alignment.centerLeft,
            TextAlign.right => Alignment.centerRight,
            TextAlign.center => AlignmentDirectional.center,
            TextAlign.justify => AlignmentDirectional.center,
            TextAlign.start => AlignmentDirectional.centerStart,
            TextAlign.end => AlignmentDirectional.centerEnd,
          };

          final theme = Theme.of(field.context);

          return Align(
            alignment: align,
            child: CupertinoSwitch(
              value: field.value ?? false,
              onChanged: field.didChange,
              activeColor: activeColor ??
                  theme.switchTheme.trackColor
                      ?.resolve({MaterialState.selected}) ??
                  theme.colorScheme.primary,
              thumbColor: thumbColor,
              trackColor: trackColor,
              applyTheme: applyTheme,
              focusColor: focusColor,
              onLabelColor: onLabelColor,
              offLabelColor: offLabelColor,
              focusNode: focusNode,
              autofocus: autofocus ?? false,
              dragStartBehavior: dragStartBehavior ?? DragStartBehavior.start,
              onFocusChange: onFocusChange,
            ),
          );
        },
        validator: (bool? val) {
          if (required == true && val == null) {
            return '请选择';
          }
          if (validator != null) {
            return validator(val);
          }
          return null;
        },
      );