fromDynamic static method

JsonPopupMenuButtonBuilder? 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:

{
  "clipBehavior": <Clip>,
  "color": "<Color>",
  "constraints": "<BoxConstraints>",
  "elevation": "<double>",
  "enableFeedback": "<bool>",
  "enabled": "<bool>",
  "icon": "<JsonWidgetData>",
  "iconSize": "<double>",
  "initialValue": "<T>",
  "itemBuilder": "<PopupMenuItemBuilder<T>>",
  "offset": "<Offset>",
  "onCanceled": "<PopupMenuCanceled>",
  "onOpened": "<VoidCallback>",
  "onSelected": "<PopupMenuItemSelected<T>>",
  "padding": "<EdgeInsetsGeometry>",
  "shadowColor": "<Color>",
  "shape": "<ShapeBorder>",
  "splashRadius": "<SplashRadius>",
  "surfaceTintColor": "<Color>",
  "tooltip": "<String>"
}

As a note, the PopupMenuItemBuilder<T>, PopupMenuCanceled and PopupMenuItemSelected<T> cannot b eecoded 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:

• JsonWidgetData.fromDynamic
• ThemeDecoder.decodeBoxConstraints
• ThemeDecoder.decodeClip
• ThemeDecoder.decodeColor
• ThemeDecoder.decodeEdgeInsetsGeometry
• ThemeDecoder.decodeOffset
• ThemeDecoder.decodePopupMenuPosition
• ThemeDecoder.decodeShapeBorder

Implementation

static JsonPopupMenuButtonBuilder? fromDynamic(
  dynamic map, {
  JsonWidgetRegistry? registry,
}) {
  JsonPopupMenuButtonBuilder? result;

  if (map != null) {
    result = JsonPopupMenuButtonBuilder(
      clipBehavior: ThemeDecoder.decodeClip(
            map['clipBehavior'],
            validate: false,
          ) ??
          Clip.hardEdge,
      color: ThemeDecoder.decodeColor(
        map['color'],
        validate: false,
      ),
      constraints: ThemeDecoder.decodeBoxConstraints(
        map['constraints'],
        validate: false,
      ),
      elevation: JsonClass.maybeParseDouble(
        map['elevation'],
      ),
      enableFeedback: map['enableFeedback'] == null
          ? true
          : JsonClass.parseBool(
              map['enableFeedback'],
            ),
      enabled: map['enabled'] == null
          ? true
          : JsonClass.parseBool(
              map['enabled'],
            ),
      icon: JsonWidgetData.fromDynamic(
        map['icon'],
        registry: registry,
      ),
      iconSize: JsonClass.maybeParseDouble(map['iconSize']),
      initialValue: map['initialValue'],
      itemBuilder: map['itemBuilder'],
      offset: ThemeDecoder.decodeOffset(
            map['offset'],
            validate: false,
          ) ??
          Offset.zero,
      onCanceled: map['onCanceled'],
      onOpened: map['onSelected'],
      onSelected: map['onSelected'],
      padding: ThemeDecoder.decodeEdgeInsetsGeometry(
            map['padding'],
            validate: false,
          ) ??
          const EdgeInsets.all(8.0),
      position: ThemeDecoder.decodePopupMenuPosition(
        map['position'],
        validate: false,
      ),
      shadowColor: ThemeDecoder.decodeColor(
        map['shadowColor'],
        validate: false,
      ),
      shape: ThemeDecoder.decodeShapeBorder(
        map['shape'],
        validate: false,
      ),
      splashRadius: JsonClass.maybeParseDouble(map['splashRadius']),
      surfaceTintColor: ThemeDecoder.decodeColor(
        map['surfaceTintColor'],
        validate: false,
      ),
      tooltip: map['tooltip'],
    );
  }

  return result;
}