Flutter - googleapis -如何使用Gmail Api阅读电子邮件

dependencies:
  googleapis: ^0.56.0
  googleapis_auth: ^0.2.11
  googleapis_auth_flutter: ^0.2.6

import 'package:flutter/material.dart';
import 'package:googleapis/gmail/v1.dart' as gmail;
import 'package:googleapis_auth/googleapis_auth.dart' as auth;
import 'package:googleapis_auth_flutter/googleapis_auth_flutter.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Gmail API Demo',
      home: Scaffold(
        appBar: AppBar(
          title: Text('Gmail API Demo'),
        ),
        body: Center(
          child: RaisedButton(
            child: Text('Read Emails'),
            onPressed: () async {
              final clientId = ClientId('<YOUR_CLIENT_ID>', '');
              final scopes = [gmail.GmailApi.gmailReadonlyScope];
              final client = await clientViaUserConsent(clientId, scopes, prompt).catchError((error) {
                print('Error authenticating: $error');
              });

              if (client != null) {
                final gmail.GmailApi gmailApi = gmail.GmailApi(client);
                final response = await gmailApi.users.messages.list('me');
                final messages = response.messages;

                // 处理邮件列表
                // ...

                client.close();
              }
            },
          ),
        ),
      ),
    );
  }
}