flutter_oss_manager 2.2.0

A Flutter package and CLI for scanning, summarizing, and generating open-source license information for your project's dependencies.

example/lib/main.dart

import 'package:example/oss_licenses.g.dart';
import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'OSS Licenses Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const LicenseListPage(),
    );
  }
}

class LicenseListPage extends StatefulWidget {
  const LicenseListPage({super.key});

  @override
  State<LicenseListPage> createState() => _LicenseListPageState();
}

class _LicenseListPageState extends State<LicenseListPage> {
  late final Future<OssLicensesHandle> _handle = OssLicenses.acquire();

  @override
  void dispose() {
    _handle.then((h) => h.close());
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Open Source Licenses'),
      ),
      body: FutureBuilder<OssLicensesHandle>(
        future: _handle,
        builder: (context, snapshot) {
          if (snapshot.hasError) {
            return Center(child: Text('Failed to load: ${snapshot.error}'));
          }
          if (!snapshot.hasData) {
            return const Center(child: CircularProgressIndicator());
          }
          final licenses = snapshot.data!.licenses;
          return ListView.builder(
            itemCount: licenses.length,
            itemBuilder: (context, index) {
              final license = licenses[index];
              return Card(
                margin: const EdgeInsets.all(8.0),
                child: ExpansionTile(
                  title: Text('${license.name} v${license.version}'),
                  subtitle: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(license.licenseSummary),
                      if (license.description != null)
                        Text(license.description!),
                      if (license.repositoryUrl != null)
                        InkWell(
                          onTap: () async {
                            final url = Uri.parse(license.repositoryUrl!);
                            if (await canLaunchUrl(url)) {
                              await launchUrl(url);
                            } else {
                              if (context.mounted) {
                                ScaffoldMessenger.of(context).showSnackBar(
                                  SnackBar(
                                      content: Text(
                                          'Could not launch ${license.repositoryUrl}')),
                                );
                              }
                            }
                          },
                          child: Text(
                            license.repositoryUrl!,
                            style: const TextStyle(
                                decoration: TextDecoration.underline,
                                color: Colors.blue),
                          ),
                        ),
                    ],
                  ),
                  children: [
                    Padding(
                      padding: const EdgeInsets.all(16.0),
                      child: Text(license.licenseText),
                    ),
                  ],
                ),
              );
            },
          );
        },
      ),
    );
  }
}