decodeBottomNavigationBarThemeData static method

BottomNavigationBarThemeData? decodeBottomNavigationBarThemeData(dynamic value, { bool validate = true, })

Decodes the given value to an BottomNavigationBarThemeData. This expects the given value to follow the structure below:

{
  "backgroundColor": <Color>,
  "elevation": <double>,
  "selectedIconTheme": <IconThemeData>,
  "selectedIconColor": <Color>,
  "selectedLabelStyle": <TextStyle>,
  "showSelectedLabels": <bool>,
  "showUnselectedLabels": <bool>,
  "type": <BottomNavigationBarType>,
  "unselectedIconTheme": <IconThemeData>,
  "unselectedItemColor": <Color>,
  "unselectedLabelStyle": <TextStyle>,
}

See also:

• decodeBottomNavigationBarType
• decodeColor
• decodeIconThemeData
• decodeTextStyle

Implementation

static BottomNavigationBarThemeData? decodeBottomNavigationBarThemeData(
  dynamic value, {
  bool validate = true,
}) {
  BottomNavigationBarThemeData? result;

  if (value is BottomNavigationBarThemeData) {
    result = value;
  } else if (value != null) {
    result = BottomNavigationBarThemeData(
      backgroundColor: decodeColor(
        value['backgroundColor'],
        validate: false,
      ),
      elevation: JsonClass.parseDouble(value['elevation']),
      selectedIconTheme: decodeIconThemeData(
        value['selectedIconTheme'],
        validate: false,
      ),
      selectedItemColor: decodeColor(
        value['selectedItemColor'],
        validate: false,
      ),
      selectedLabelStyle: decodeTextStyle(
        value['selectedLabelStyle'],
        validate: false,
      ),
      showSelectedLabels: value['showSelectedLabels'] == null
          ? null
          : JsonClass.parseBool(value['showSelectedLabels']),
      showUnselectedLabels: value['showUnselectedLabels'] == null
          ? null
          : JsonClass.parseBool(value['showUnselectedLabels']),
      type: decodeBottomNavigationBarType(
        value['type'],
        validate: false,
      ),
      unselectedIconTheme: decodeIconThemeData(
        value['unselectedIconTheme'],
        validate: false,
      ),
      unselectedItemColor: decodeColor(
        value['unselectedItemColor'],
        validate: false,
      ),
      unselectedLabelStyle: decodeTextStyle(
        value['unselectedLabelStyle'],
        validate: false,
      ),
    );
  }

  return result;
}