amap_location/example/lib/main.dart

import 'dart:async';

import 'package:amap_location/amap_export.dart';
import 'package:amap_location_example/map_view_page.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  AmapLocation.registerView();
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        home: HomePage()
    );
  }
}

class HomePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return HomePageState();
  }
}

class HomePageState extends State<HomePage> {
  String _platformVersion = 'Unknown';

  @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 AmapLocation.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;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Plugin example app'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            RawMaterialButton(
              onPressed: () async {
                await AmapLocation.instance.startLocation(
                    options: LocationOption(
                      isOnceLocation: false,
                      locationInterval: 5000,
                      locationTimeOut: 10,
                      locationMode: LocationMode.Battery_Saving,));
                AmapLocation.instance.locationStream.listen((d) {
                  print(d.city);
                  // stop location when isOnceLocation is true
//                     AmapLocation.instance.disposed();
                });
                await Future.delayed(Duration(seconds: 60));
                AmapLocation.instance.disposed();
              },
              child: Text("get lcoation"),
            ),
            SizedBox(height: 10,),
            RawMaterialButton(
              onPressed: () async {
                Navigator.of(context).push(MaterialPageRoute(builder: (ctx){
                  return MapViewPage();
                }));
              },
              child: Text("jump to mapview"),
            ),
          ],
        ),
      ),
    );
  }

}