getBool method

@override Future<bool?> getBool(String key)

Gets a boolean value

@param key The key to retrieve the boolean from @return A Future that resolves to the boolean value or null

Implementation

@override
Future<bool?> getBool(String key) async {
  if (_cache == null) {
    await _updateCache();
  }
  if (_cache == null) return null;
  return _cache![key] as bool?;
}