class CategoryModel {
 List<_Category> _Categories = [];

 CategoryModel.fromJson(Map<String, dynamic> parsedJson) {
   print(parsedJson['Categories'].length);
   List<_Category> temp = [];
   for (int i = 0; i < parsedJson['Categories'].length; i++) {
     //_Category is the constructor of _Category Class line number 21
     _Category category = _Category(parsedJson['Categories'][i]);
     temp.add(category);
   }
   _Categories = temp;
 }

 List<_Category> get categories => _Categories;
}

class _Category {
 int _id;

 String _name;

 String _iconPath;

 _Category(category) {
   _id = category['id'];
   _name = category['name'];
   _iconPath = category['iconPath'];
 }

 int get id => _id;

 String get name => _name;

 String get iconPath => _iconPath;
}

Future<CategoryModel> fetchCategoryList() async {
   final jsonCategory = await rootBundle.loadString("assets/CategoryList.json");
   final mapJsonCategory = Map.from(jsonDecode(jsonCategory));

   return CategoryModel.fromJson(mapJsonCategory);
 }

{
  "Categories": [
    {
      "id": 1,
      "name": "Restruants",
      "iconPath": " "
    },
    {
      "id": 2,
      "name": "Car Rental",
      "iconPath": " "
    },
    {
      "id": 3,
      "name": "Furniture",
      "iconPath": " "
    },
    {
      "id": 4,
      "name": "cars",
      "iconPath": " "
    },
    {
      "id": 5,
      "name": "Maintenance",
      "iconPath": " "
    },
    {
      "id": 6,
      "name": "Education",
      "iconPath": " "
    },
    {
      "id": 7
      "name": "Finess",
      "iconPath": " "
    },
    {
      "id": 8,
      "name": "Electronics",
      "iconPath": " "
    },
    {
      "id": 9,
      "name": "Medical",
      "iconPath": " "
    },
    {
      "id": 10,
      "name": "Entirtainment",
      "iconPath": " "
    }
  ]
}