import 'dart:async';
        
        import 'package:ai_amap/ai_amap.dart';
        import 'package:flutter/material.dart';
        import 'package:flutter/services.dart';
        
        void main() {
          runApp(MyApp());
        }
        
        class MyApp extends StatefulWidget {
          @override
          _MyAppState createState() => _MyAppState();
        }
        
        class _MyAppState extends State<MyApp> {
          @override
          void initState() {
            super.initState();
            initPlatformState();
          }
        
          // Platform messages are asynchronous, so we initialize in an async method.
          Future<void> initPlatformState() async {
            String platformVersion;
            // Platform messages may fail, so we use a try/catch PlatformException.
            try {
              platformVersion = await AiAMapHelper.platformVersion;
            } on PlatformException {
              platformVersion = 'Failed to get platform version.';
            }
        
            // If the widget was removed from the tree while the asynchronous platform
            // message was in flight, we want to discard the reply rather than calling
            // setState to update our non-existent appearance.
            if (!mounted) return;
          }
        
          @override
          Widget build(BuildContext context) {
            return MaterialApp(
              home: Scaffold(
                appBar: AppBar(
                  title: const Text('Plugin example app'),
                ),
                body: Column(
                  children: [
                    Expanded(
                      child: AiAMapPlatformWidget(),
                    ),
                  ],
                ),
              ),
            );
          }
        }