searchable_listview 1.4.0

A new easy way to filter listview with simple implementation with possibilty to customize search field and empty widget

example/lib/main.dart

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

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const Scaffold(
        body: SafeArea(
          child: ExampleApp(),
        ),
      ),
    );
  }
}

class ExampleApp extends StatefulWidget {
  const ExampleApp({Key? key}) : super(key: key);

  @override
  State<ExampleApp> createState() => _ExampleAppState();
}

class _ExampleAppState extends State<ExampleApp> {
  final List<Actor> actors = [
    Actor(
      age: 47,
      name: 'Leonardo',
      lastName: 'DiCaprio',
    ),
    Actor(
      age: 58,
      name: 'Johnny',
      lastName: 'Depp',
    ),
    Actor(age: 78, name: 'Robert', lastName: 'De Niro'),
    Actor(age: 44, name: 'Tom', lastName: 'Hardy'),
    Actor(age: 66, name: 'Denzel', lastName: 'Washington'),
    Actor(age: 49, name: 'Ben', lastName: 'Affleck'),
  ];

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: double.infinity,
      child: Column(
        children: [
          Expanded(
            child: Padding(
              padding: const EdgeInsets.all(15),
              child: SearchableList<Actor>(
                initialList: actors,
                builder: (Actor actor) => ActorItem(actor: actor),
                filter: _filterUserList,
                emptyWidget: const EmptyView(),
                inputDecoration: InputDecoration(
                  labelText: "Search Actor",
                  fillColor: Colors.white,
                  focusedBorder: OutlineInputBorder(
                    borderSide: const BorderSide(
                      color: Colors.blue,
                      width: 1.0,
                    ),
                    borderRadius: BorderRadius.circular(10.0),
                  ),
                ),
                onRefresh: () async {
                  addActor();
                },
              ),
            ),
          ),
          Align(
            alignment: Alignment.center,
            child: ElevatedButton(
              onPressed: addActor,
              child: const Text('Add actor'),
            ),
          )
        ],
      ),
    );
  }

  List<Actor> _filterUserList(String searchTerm) {
    return actors
        .where(
          (element) =>
              element.name.toLowerCase().contains(searchTerm) ||
              element.lastName.contains(searchTerm),
        )
        .toList();
  }

  void addActor() {
    actors.add(Actor(
      age: 10,
      lastName: 'Ali',
      name: 'ALi',
    ));
    setState(() {});
  }
}

class ActorItem extends StatelessWidget {
  final Actor actor;

  const ActorItem({
    Key? key,
    required this.actor,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(8.0),
      child: Container(
        height: 60,
        decoration: BoxDecoration(
          color: Colors.grey[200],
          borderRadius: BorderRadius.circular(10),
        ),
        child: Row(
          children: [
            const SizedBox(
              width: 10,
            ),
            Icon(
              Icons.star,
              color: Colors.yellow[700],
            ),
            const SizedBox(
              width: 10,
            ),
            Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text(
                  'Firstname: ${actor.name}',
                  style: const TextStyle(
                    color: Colors.black,
                    fontWeight: FontWeight.bold,
                  ),
                ),
                Text(
                  'Lastname: ${actor.lastName}',
                  style: const TextStyle(
                    color: Colors.black,
                    fontWeight: FontWeight.bold,
                  ),
                ),
                Text(
                  'Age: ${actor.age}',
                  style: const TextStyle(
                    color: Colors.black,
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}

class EmptyView extends StatelessWidget {
  const EmptyView({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: const [
        Icon(
          Icons.error,
          color: Colors.red,
        ),
        Text('no actor is found with this name'),
      ],
    );
  }
}

class Actor {
  int age;
  String name;
  String lastName;

  Actor({
    required this.age,
    required this.name,
    required this.lastName,
  });
}