Frequency Sorter

A Flutter utility package, written in Dart, sort a list based on number of occurrences of duplicate items in the list;

Usage:

• Install the package. Add to pubspec.yaml

  • frequencysorter: 0.1;

• Import the package

  • import 'package:frequencysorter/frequencysorter.dart';

• Create reference point, requires two parameters -- List of identifiers and List of items

  List<String> identifier = ['name', 'defValue'];
  FrequencyGenerator fr =
      new FrequencyGenerator(identifier, itemList);

  • Identifier List contains the parameters of nesting in your model, if any

• Available methods:

  • registerItem(dynamic item) // Takes an item as parameter

    • Add new item to the frequency list. If item already exists, updates the count of the item. Else, adds it to the list

          Ex: fr.registerItem(itemList[itemList.length - 1]);

  • getFrequencyByValue(dynamic value) // Takes a parameter value

    • Get frequency of a particular item in the sorted list. Returns back an integer value, corresponding to the frequency of the item in the list

      Ex: int frequency = fr.getFrequencyByValue(itemList[0]);

  • getSortedList(bool reverse) // Takes a boolean parameter

    • Returns back the list, sorted based on preference. True indicates descending sort, false indicates ascending.

    Ex: List sr = fr.getSortedList(false);
     sr.forEach((element) {
     print('${element['name']['defValue']} - ${element['freq']}')