fromDynamic static method

JsonRadioBuilder? fromDynamic(dynamic map, { JsonWidgetRegistry? registry, })

Builds the builder from a Map-like dynamic structure. This expects the JSON format to be of the following structure:

{
  "activeColor": "<Color>,"
  "autovalidateMode": "<AutovalidateMode>",
  "autofocus": "<bool>",
  "checkColor": "<Color>",
  "enabled": "<bool>",
  "fillColor": "<MaterialStateProperty<Color>>",
  "focusColor": "<Color>",
  "focusNode": "<FocusNode>",
  "groupValue": "<dynamic>",
  "hoverColor": "<Color>",
  "id": "<String>",
  "label": "<String>",
  "materialTapTargetSize": "<MaterialTapTargetSize>",
  "mouseCursor": "<MouseCursor>",
  "onChanged": "<ValueCallback<dynamic>>",
  "onSaved": "<ValueCallback<dynamic>>",
  "overlayColor": "<MaterialStateProperty<Color>>",
  "toggleable": "<bool>",
  "splashRadius": "<double>",
  "validators": "<List<ValueValidators>>",
  "value": "<dynamic>",
  "visualDensity": "<VisualDensity>"
}

As a note, the FocusNode and ValueCallback<bool> cannot be decoded via JSON. Instead, the only way to bind those values to the builder is to use a function or a variable reference via the JsonWidgetRegistry.

See also:

• buildCustom
• ThemeDecoder.decodeAutovalidateMode
• ThemeDecoder.decodeColor
• ThemeDecoder.decodeMaterialTapTargetSize
• ThemeDecoder.decodeVisualDensity
• Validator

Implementation

static JsonRadioBuilder? fromDynamic(
  dynamic map, {
  JsonWidgetRegistry? registry,
}) {
  JsonRadioBuilder? result;
  if (map != null) {
    result = JsonRadioBuilder(
      activeColor: ThemeDecoder.decodeColor(
        map['activeColor'],
        validate: false,
      ),
      autofocus: JsonClass.parseBool(map['autofocus']),
      autovalidateMode: map['autovalidate'] == null
          ? ThemeDecoder.decodeAutovalidateMode(
              map['autovalidateMode'],
              validate: false,
            )
          : JsonClass.parseBool(map['autovalidate']) == true
              ? AutovalidateMode.always
              : AutovalidateMode.disabled,
      enabled:
          map['enabled'] == null ? true : JsonClass.parseBool(map['enabled']),
      fillColor: ThemeDecoder.decodeMaterialStatePropertyColor(
        map['fillColor'],
        validate: false,
      ),
      focusColor: ThemeDecoder.decodeColor(
        map['focusColor'],
        validate: false,
      ),
      focusNode: map['focusNode'],
      groupValue: map['groupValue'],
      hoverColor: ThemeDecoder.decodeColor(
        map['hoverColor'],
        validate: false,
      ),
      id: map['id'],
      materialTapTargetSize: ThemeDecoder.decodeMaterialTapTargetSize(
        map['materialTapTargetSize'],
        validate: false,
      ),
      mouseCursor: ThemeDecoder.decodeMouseCursor(
        map['mouseCursor'],
        validate: false,
      ),
      onChanged: map['onChanged'],
      onSaved: map['onSaved'],
      overlayColor: ThemeDecoder.decodeMaterialStatePropertyColor(
        map['overlayColor'],
        validate: false,
      ),
      splashRadius: JsonClass.maybeParseDouble(map['splashRadius']),
      toggleable: JsonClass.parseBool(map['toggleable']),
      validator: map['validators'] == null
          ? null
          : Validator.fromDynamic({'validators': map['validators']}),
      value: map['value'],
      visualDensity: ThemeDecoder.decodeVisualDensity(
        map['visualDensity'],
        validate: false,
      ),
    );
  }

  return result;
}