LocalSpend-Tracker/lib/pages/map_page.dart

import 'package:flutter/material.dart';
import 'dart:async';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:local_spend/common/platform/platform_scaffold.dart';

class MapPage extends StatefulWidget {
  MapPage({Key key}) : super(key: key);

  @override
  _MapPageState createState() {
    return _MapPageState();
  }
}

class _MapPageState extends State<MapPage> {
  @override
  Widget build(BuildContext context) {
    return PlatformScaffold(
      appBar: AppBar(
        backgroundColor: Colors.blue[400],
        title: Text(
          "Submit Receipt",
          style: TextStyle(
            fontSize: 20,
            color: Colors.white,
          ),
        ),
        centerTitle: true,
        iconTheme: IconThemeData(color: Colors.black),
      ),
      body: null,
    );
  }
}

class MapSample extends StatefulWidget {
  @override
  State<MapSample> createState() => MapSampleState();
}

class MapSampleState extends State<MapSample> {
  Completer<GoogleMapController> _controller = Completer();

  static final CameraPosition _kGooglePlex = CameraPosition(
    target: LatLng(37.42796133580664, -122.085749655962),
    zoom: 14.4746,
  );

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      body: GoogleMap(
        mapType: MapType.hybrid,
        initialCameraPosition: _kGooglePlex,
        onMapCreated: (GoogleMapController controller) {
          _controller.complete(controller);
        },
      ),
    );
  }
}