PlatformTextField constructor Null safety

PlatformTextField(
  1. {Key? key,
  2. Key? widgetKey,
  3. TextEditingController? controller,
  4. FocusNode? focusNode,
  5. TextInputType? keyboardType,
  6. TextInputAction? textInputAction,
  7. TextCapitalization? textCapitalization = TextCapitalization.none,
  8. TextStyle? style,
  9. TextAlign? textAlign,
  10. bool? autofocus,
  11. bool? obscureText,
  12. bool? autocorrect,
  13. int? maxLines = 1,
  14. int? maxLength,
  15. bool? maxLengthEnforced,
  16. void onChanged(
    1. String
    )?,
  17. void onEditingComplete(
      )?,
    1. void onSubmitted(
      1. String
      )?,
    2. List<TextInputFormatter>? inputFormatters,
    3. bool? enabled,
    4. double? cursorWidth,
    5. Radius? cursorRadius,
    6. Color? cursorColor,
    7. Brightness? keyboardAppearance,
    8. EdgeInsets? scrollPadding,
    9. DragStartBehavior? dragStartBehavior,
    10. int? minLines,
    11. bool? expands,
    12. ScrollPhysics? scrollPhysics,
    13. StrutStyle? strutStyle,
    14. bool? enableInteractiveSelection,
    15. ScrollController? scrollController,
    16. GestureTapCallback? onTap,
    17. bool? readOnly,
    18. bool? showCursor,
    19. TextAlignVertical? textAlignVertical,
    20. ToolbarOptions? toolbarOptions,
    21. SmartDashesType? smartDashesType,
    22. SmartQuotesType? smartQuotesType,
    23. BoxHeightStyle? selectionHeightStyle,
    24. BoxWidthStyle? selectionWidthStyle,
    25. String? obscuringCharacter,
    26. Iterable<String>? autofillHints,
    27. double? cursorHeight,
    28. String? restorationId,
    29. MaxLengthEnforcement? maxLengthEnforcement,
    30. TextSelectionControls? selectionControls,
    31. String? hintText,
    32. PlatformBuilder<MaterialTextFieldData>? material,
    33. PlatformBuilder<CupertinoTextFieldData>? cupertino}
    )

    Implementation

    PlatformTextField({
  Key? key,
  this.widgetKey,
  this.controller,
  this.focusNode,
  TextInputType? keyboardType,
  this.textInputAction,
  this.textCapitalization = TextCapitalization.none,
  this.style,
  this.textAlign,
  this.autofocus,
  this.obscureText,
  this.autocorrect,
  this.maxLines = 1,
  this.maxLength,
  this.maxLengthEnforced,
  this.onChanged,
  this.onEditingComplete,
  this.onSubmitted,
  this.inputFormatters,
  this.enabled,
  this.cursorWidth,
  this.cursorRadius,
  this.cursorColor,
  this.keyboardAppearance,
  this.scrollPadding,
  this.dragStartBehavior,
  this.minLines,
  this.expands,
  this.scrollPhysics,
  this.strutStyle,
  this.enableInteractiveSelection,
  this.scrollController,
  this.onTap,
  this.readOnly,
  this.showCursor,
  this.textAlignVertical,
  this.toolbarOptions,
  this.smartDashesType,
  this.smartQuotesType,
  this.selectionHeightStyle,
  this.selectionWidthStyle,
  this.obscuringCharacter,
  this.autofillHints,
  this.cursorHeight,
  this.restorationId,
  this.maxLengthEnforcement,
  this.selectionControls,
  this.hintText,
  this.material,
  this.cupertino,
})  : keyboardType = keyboardType ??
          (maxLines == 1 ? TextInputType.text : TextInputType.multiline),
      super(key: key);