Flutter: Filter list as per some condition

toList() is missing to materializer the result

_AnimatedMovies = AllMovies.where((i) => i.isAnimated).toList();

The Solution is here

Just try with this Function getCategoryList(),
Here the condition will be catogory_id == '1' from the list

List<dynamic> getCategoryList(List<dynamic> inputlist) {
    List outputList = inputlist.where((o) => o['category_id'] == '1').toList();
    return outputList;
  }