TxArrayFormField<T>.builder constructor

TxArrayFormField<T>.builder({ required ArrayFormFieldItemBuilder<T> itemBuilder, ValueMapper<int, T>? defaultValue, ButtonStyle? addButtonStyle, ButtonStyle? actionsButtonStyle, int? limit, bool? sortable, bool? insertable, ArrayAddCallback<T>? onAddTap, FocusNode? focusNode, String? hintText, TextAlign? textAlign, Key? key, FormFieldSetter<List<T>>? onSaved, FormFieldValidator<List<T>>? validator, List<T>? initialValue, bool? enabled, AutovalidateMode? autovalidateMode = AutovalidateMode.onUserInteraction, String? restorationId, InputDecoration? decoration, ValueChanged<List<T>?>? onChanged, bool? required, Widget? label, String? labelText, TextAlign? labelTextAlign, TextOverflow? labelOverflow, EdgeInsetsGeometry? padding, FieldActionsBuilder<List<T>>? actionsBuilder, TextStyle? labelStyle, double? horizontalGap, Color? tileColor, Axis? layoutDirection, TxFormFieldBuilder<List<T>>? trailingBuilder, Widget? leading, VisualDensity? visualDensity, ShapeBorder? shape, Color? iconColor, Color? textColor, TextStyle? leadingAndTrailingTextStyle, GestureTapCallback? onTap, double? minLeadingWidth, bool? dense, bool? colon, double? minLabelWidth, Color? focusColor, double? minVerticalPadding, })

通过自增子项构造一个自增 Form 组件

Implementation

TxArrayFormField.builder({
  required ArrayFormFieldItemBuilder<T> itemBuilder,
  ValueMapper<int, T>? defaultValue,
  ButtonStyle? addButtonStyle,
  ButtonStyle? actionsButtonStyle,
  int? limit,
  bool? sortable,
  bool? insertable,
  ArrayAddCallback<T>? onAddTap,
  FocusNode? focusNode,
  String? hintText,
  TextAlign? textAlign,
  super.key,
  super.onSaved,
  FormFieldValidator<List<T>>? validator,
  super.initialValue,
  super.enabled,
  super.autovalidateMode,
  super.restorationId,
  super.decoration,
  super.onChanged,
  super.required,
  super.label,
  super.labelText,
  super.labelTextAlign,
  super.labelOverflow,
  super.padding,
  super.actionsBuilder,
  super.labelStyle,
  super.horizontalGap,
  super.tileColor,
  super.layoutDirection,
  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.focusColor,
  super.minVerticalPadding,
})  : assert(onAddTap != null || defaultValue != null),
      super(
        builder: (field) => _buildFormFieldByItem(
          field,
          itemBuilder,
          defaultValue,
          addButtonStyle,
          actionsButtonStyle,
          limit,
          sortable,
          insertable,
          onAddTap,
        ),
        validator: (val) => _validator(val, required, limit, validator),
      );