getFeedbackHistory static method

Implementation

static Future<List<Map<String, dynamic>>> getFeedbackHistory() async {
  final prefs = await SharedPreferences.getInstance();
  final String? data = prefs.getString(_keyFeedbackHistory);
  if (data == null) return [];

  try {
    final List<dynamic> list = jsonDecode(data);
    return list.cast<Map<String, dynamic>>();
  } catch (e) {
    return [];
  }
}