FSelect<T> constructor

FSelect<T>({
  1. required Map<String, T> items,
  2. FSelectController<T>? controller,
  3. FSelectStyle style(
    1. FSelectStyle
    )?,
  4. bool autofocus = false,
  5. FocusNode? focusNode,
  6. FFieldBuilder<FSelectStyle> builder = _fieldBuilder,
  7. FFieldIconBuilder<FSelectStyle>? prefixBuilder,
  8. FFieldIconBuilder<FSelectStyle>? suffixBuilder = defaultIconBuilder,
  9. Widget? label,
  10. Widget? description,
  11. bool enabled = true,
  12. ValueChanged<T?>? onChange,
  13. FormFieldSetter<T>? onSaved,
  14. AutovalidateMode autovalidateMode = AutovalidateMode.onUnfocus,
  15. String? forceErrorText,
  16. FormFieldValidator<T> validator = _defaultValidator,
  17. Widget errorBuilder(
    1. BuildContext,
    2. String
    ) = FFormFieldProperties.defaultErrorBuilder,
  18. String? hint,
  19. TextAlign textAlign = TextAlign.start,
  20. TextAlignVertical? textAlignVertical,
  21. TextDirection? textDirection,
  22. bool expands = false,
  23. MouseCursor mouseCursor = SystemMouseCursors.click,
  24. bool canRequestFocus = true,
  25. bool clearable = false,
  26. AlignmentGeometry anchor = AlignmentDirectional.topStart,
  27. AlignmentGeometry fieldAnchor = AlignmentDirectional.bottomStart,
  28. FPortalConstraints popoverConstraints = const FAutoWidthPortalConstraints(maxHeight: 300),
  29. FPortalSpacing spacing = const FPortalSpacing(4),
  30. Offset shift(
    1. Size,
    2. FPortalChildBox,
    3. FPortalBox
    ) = FPortalShift.flip,
  31. Offset offset = Offset.zero,
  32. FPopoverHideRegion hideRegion = FPopoverHideRegion.excludeChild,
  33. bool autoHide = true,
  34. Widget contentEmptyBuilder(
    1. BuildContext,
    2. FSelectStyle
    ) = defaultContentEmptyBuilder,
  35. ScrollController? contentScrollController,
  36. bool contentScrollHandles = false,
  37. ScrollPhysics contentPhysics = const ClampingScrollPhysics(),
  38. FItemDivider contentDivider = FItemDivider.none,
  39. T? initialValue,
  40. Key? key,
})

Creates a FSelect from the given items.

For more control over the appearance of items, use FSelect.rich.

Contract

Each key in items must map to a unique value. Having multiple keys map to the same value will result in undefined behavior.

Implementation

factory FSelect({
  required Map<String, T> items,
  FSelectController<T>? controller,
  FSelectStyle Function(FSelectStyle)? style,
  bool autofocus = false,
  FocusNode? focusNode,
  FFieldBuilder<FSelectStyle> builder = _fieldBuilder,
  FFieldIconBuilder<FSelectStyle>? prefixBuilder,
  FFieldIconBuilder<FSelectStyle>? suffixBuilder = defaultIconBuilder,
  Widget? label,
  Widget? description,
  bool enabled = true,
  ValueChanged<T?>? onChange,
  FormFieldSetter<T>? onSaved,
  AutovalidateMode autovalidateMode = AutovalidateMode.onUnfocus,
  String? forceErrorText,
  FormFieldValidator<T> validator = _defaultValidator,
  Widget Function(BuildContext, String) errorBuilder = FFormFieldProperties.defaultErrorBuilder,
  String? hint,
  TextAlign textAlign = TextAlign.start,
  TextAlignVertical? textAlignVertical,
  TextDirection? textDirection,
  bool expands = false,
  MouseCursor mouseCursor = SystemMouseCursors.click,
  bool canRequestFocus = true,
  bool clearable = false,
  AlignmentGeometry anchor = AlignmentDirectional.topStart,
  AlignmentGeometry fieldAnchor = AlignmentDirectional.bottomStart,
  FPortalConstraints popoverConstraints = const FAutoWidthPortalConstraints(maxHeight: 300),
  FPortalSpacing spacing = const FPortalSpacing(4),
  Offset Function(Size, FPortalChildBox, FPortalBox) shift = FPortalShift.flip,
  Offset offset = Offset.zero,
  FPopoverHideRegion hideRegion = FPopoverHideRegion.excludeChild,
  bool autoHide = true,
  Widget Function(BuildContext, FSelectStyle) contentEmptyBuilder = defaultContentEmptyBuilder,
  ScrollController? contentScrollController,
  bool contentScrollHandles = false,
  ScrollPhysics contentPhysics = const ClampingScrollPhysics(),
  FItemDivider contentDivider = FItemDivider.none,
  T? initialValue,
  Key? key,
}) {
  final inverse = {for (final MapEntry(:key, :value) in items.entries) value: key};
  return FSelect<T>.rich(
    controller: controller,
    style: style,
    autofocus: autofocus,
    focusNode: focusNode,
    builder: builder,
    prefixBuilder: prefixBuilder,
    suffixBuilder: suffixBuilder,
    label: label,
    description: description,
    enabled: enabled,
    onChange: onChange,
    onSaved: onSaved,
    autovalidateMode: autovalidateMode,
    forceErrorText: forceErrorText,
    validator: validator,
    errorBuilder: errorBuilder,
    format: (value) => inverse[value]!,
    hint: hint,
    textAlign: textAlign,
    textAlignVertical: textAlignVertical,
    textDirection: textDirection,
    expands: expands,
    mouseCursor: mouseCursor,
    canRequestFocus: canRequestFocus,
    clearable: clearable,
    anchor: anchor,
    fieldAnchor: fieldAnchor,
    popoverConstraints: popoverConstraints,
    spacing: spacing,
    shift: shift,
    offset: offset,
    hideRegion: hideRegion,
    autoHide: autoHide,
    contentEmptyBuilder: contentEmptyBuilder,
    contentScrollController: contentScrollController,
    contentScrollHandles: contentScrollHandles,
    contentPhysics: contentPhysics,
    contentDivider: contentDivider,
    initialValue: initialValue,
    key: key,
    children: [for (final MapEntry(:key, :value) in items.entries) FSelectItem(title: Text(key), value: value)],
  );
}