chips_input 0.1.0

A Flutter Widget to create an input with multiple chips, that can be selected from suggestions.

example/example.md

import 'package:flutter/widgets.dart';
import 'package:flutter/material.dart';
import 'package:chips_input/chips_input.dart';

void main() => runApp(MyApp());

class AppProfile {
  final String name;
  final String email;
  final String imageUrl;

  const AppProfile(this.name, this.email, this.imageUrl);

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is AppProfile &&
          runtimeType == other.runtimeType &&
          name == other.name;

  @override
  int get hashCode => name.hashCode;

  @override
  String toString() {
    return name;
  }
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    const mockResults = <AppProfile>[
      AppProfile('John Doe', '[e-mail]',
          'https://d2gg9evh47fn9z.cloudfront.net/800px_COLOURBOX4057996.jpg'),
      AppProfile('Paul', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Fred', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Brian', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('John', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Thomas', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Nelly', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Marie', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Charlie', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Diana', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Ernie', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
      AppProfile('Gina', '[e-mail]',
          'https://upload.wikimedia.org/wikipedia/commons/7/7c/Profile_avatar_placeholder_large.png'),
    ];

    return MaterialApp(
      title: 'Welcome to Flutter',
      home: Scaffold(
        appBar: AppBar(
          title: Text('Welcome to Flutter'),
        ),
        body: Center(
          child: Column(children: [
            ChipsInput(
              maxChips: 3, // remove, if you like infinity number of chips
              initialValue: [mockResults[1]],
              findSuggestions: (String query) {
                if (query.isNotEmpty) {
                  var lowercaseQuery = query.toLowerCase();
                  final results = mockResults.where((profile) {
                    return profile.name
                            .toLowerCase()
                            .contains(query.toLowerCase()) ||
                        profile.email
                            .toLowerCase()
                            .contains(query.toLowerCase());
                  }).toList(growable: false)
                    ..sort((a, b) => a.name
                        .toLowerCase()
                        .indexOf(lowercaseQuery)
                        .compareTo(
                            b.name.toLowerCase().indexOf(lowercaseQuery)));
                  return results;
                }
                return mockResults;
              },
              onChanged: (data) {
                print(data);
              },
              chipBuilder: (context, state, AppProfile profile) {
                return InputChip(
                  key: ObjectKey(profile),
                  label: Text(profile.name),
                  avatar: CircleAvatar(
                    backgroundImage: NetworkImage(profile.imageUrl),
                  ),
                  onDeleted: () => state.deleteChip(profile),
                  materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
                );
              },
              suggestionBuilder: (context, AppProfile profile) {
                return ListTile(
                  key: ObjectKey(profile),
                  leading: CircleAvatar(
                    backgroundImage: NetworkImage(profile.imageUrl),
                  ),
                  title: Text(profile.name),
                  subtitle: Text(profile.email),
                );
              },
            ),
          ]),
        ),
      ),
    );
  }
}