AmazonLikeFilter

AmazonLikeFilter is an widget that is used to build Filter UI like as amazon app.

Motivation

Main motivation behind this package was one of my project feature is required to add filter UI with multiple filter options.

Authors

@subhashDev11

Demo

untitled

Features

Nested filter option
Filter result on change
Reset filter
Submit filter
View can be open through scaffold, dialog or bottom sheet

Documentation

Usage/Examples

import 'package:amazon_like_filter/amazon_like_filter.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Amazon like filter'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  List<AppliedFilterModel> applied = [];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.symmetric(
          horizontal: 15,
          vertical: 10,
        ),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          children: <Widget>[
            Visibility(
              visible: applied.isNotEmpty,
              child: Padding(
                padding: const EdgeInsets.only(
                  bottom: 20,
                ),
                child: Text(
                  'Applied filters',
                  style: Theme.of(context).textTheme.titleLarge,
                ),
              ),
            ),
            ...applied
                .map(
                  (e) => ExpansionTile(
                title: Text(e.filterTitle ?? '${e.filterKey.split('_')}'),
                children: e.applied
                    .map((fil) => ListTile(
                  title: Text(fil.filterTitle),
                ))
                    .toList(),
              ),
            )
                .toList()
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () async {
          showModalBottomSheet(
            context: context,
            builder: (_) {
              return FilterWidget(
                  filterProps: FilterProps(
                    onFilterChange: (value) {
                      setState(() {
                        applied = value;
                      });
                      print('Applied filer - ${value.map((e) => e.toMap())}');
                    },
                    filters: const [
                      FilterListModel(
                        filterOptions: [
                          FilterItemModel(filterTitle: 'Education', filterKey: 'education'),
                          FilterItemModel(
                            filterTitle: 'Information Technology',
                            filterKey: 'it',
                          ),
                          FilterItemModel(filterTitle: 'Sports', filterKey: 'sports'),
                          FilterItemModel(filterTitle: 'Transport', filterKey: 'transport'),
                        ],
                        previousApplied: [],
                        title: 'Industry',
                        filterKey: 'industry',
                      ),
                      FilterListModel(
                        filterOptions: [
                          FilterItemModel(filterTitle: 'Utter Pradesh', filterKey: 'up'),
                          FilterItemModel(
                            filterTitle: 'Madhya Pradesh',
                            filterKey: 'mp',
                          ),
                          FilterItemModel(filterTitle: 'Hariyana', filterKey: 'hr'),
                          FilterItemModel(filterTitle: 'Bihar', filterKey: 'bihar'),
                        ],
                        previousApplied: [],
                        title: 'State',
                        filterKey: 'state',
                      )
                    ],
                  ));
            },
          );
        },
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ),
    );
  }
}