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Added Google Maps sample code (#1671)
* Added Google Maps sample code * Updated per @domesticmouse review * Updated dependabot and pubspec for Dart 2.19
This commit is contained in:
Anthony Sansone
GitHub
62
google_maps/lib/main.dart
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62
google_maps/lib/main.dart
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/*
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* Copyright 2019 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import 'package:flutter/material.dart';
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import 'package:google_maps_flutter/google_maps_flutter.dart';
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void main() => runApp(const MyApp());
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class MyApp extends StatefulWidget {
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const MyApp({super.key});
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@override
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State<MyApp> createState() => _MyAppState();
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}
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class _MyAppState extends State<MyApp> {
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late GoogleMapController mapController;
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final LatLng _center = const LatLng(-33.86, 151.20);
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void _onMapCreated(GoogleMapController controller) {
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mapController = controller;
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}
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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home: Scaffold(
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appBar: AppBar(
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title: const Text('Sydney'),
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backgroundColor: Colors.green[700],
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),
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body: GoogleMap(
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onMapCreated: _onMapCreated,
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initialCameraPosition: CameraPosition(
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target: _center,
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zoom: 11.0,
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),
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markers: {
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// ignore: prefer_const_constructors
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Marker(
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markerId: const MarkerId('Sydney'),
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position: const LatLng(-33.86, 151.20),
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)
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}),
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),
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);
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}
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}
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121
google_maps/lib/src/locations.dart
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121
google_maps/lib/src/locations.dart
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/*
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* Copyright 2019 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/services.dart' show rootBundle;
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import 'package:http/http.dart' as http;
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import 'package:json_annotation/json_annotation.dart';
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part 'locations.g.dart';
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@JsonSerializable()
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class LatLng {
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LatLng({
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required this.lat,
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required this.lng,
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});
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factory LatLng.fromJson(Map<String, dynamic> json) => _$LatLngFromJson(json);
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Map<String, dynamic> toJson() => _$LatLngToJson(this);
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final double lat;
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final double lng;
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}
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@JsonSerializable()
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class Region {
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Region({
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required this.coords,
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required this.id,
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required this.name,
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required this.zoom,
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});
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factory Region.fromJson(Map<String, dynamic> json) => _$RegionFromJson(json);
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Map<String, dynamic> toJson() => _$RegionToJson(this);
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final LatLng coords;
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final String id;
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final String name;
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final double zoom;
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}
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@JsonSerializable()
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class Office {
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Office({
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required this.address,
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required this.id,
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required this.image,
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required this.lat,
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required this.lng,
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required this.name,
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required this.phone,
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required this.region,
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});
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factory Office.fromJson(Map<String, dynamic> json) => _$OfficeFromJson(json);
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Map<String, dynamic> toJson() => _$OfficeToJson(this);
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final String address;
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final String id;
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final String image;
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final double lat;
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final double lng;
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final String name;
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final String phone;
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final String region;
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}
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@JsonSerializable()
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class Locations {
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Locations({
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required this.offices,
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required this.regions,
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});
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factory Locations.fromJson(Map<String, dynamic> json) =>
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_$LocationsFromJson(json);
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Map<String, dynamic> toJson() => _$LocationsToJson(this);
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final List<Office> offices;
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final List<Region> regions;
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}
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Future<Locations> getGoogleOffices() async {
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const googleLocationsURL = 'https://about.google/static/data/locations.json';
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// Retrieve the locations of Google offices
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try {
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final response = await http.get(Uri.parse(googleLocationsURL));
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if (response.statusCode == 200) {
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return Locations.fromJson(
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json.decode(response.body) as Map<String, dynamic>);
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}
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} catch (e) {
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if (kDebugMode) {
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print(e);
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}
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}
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// Fallback for when the above HTTP request fails.
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return Locations.fromJson(
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json.decode(
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await rootBundle.loadString('assets/locations.json'),
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) as Map<String, dynamic>,
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);
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}
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83
google_maps/lib/src/locations.g.dart
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83
google_maps/lib/src/locations.g.dart
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/*
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* Copyright 2019 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// GENERATED CODE - DO NOT MODIFY BY HAND
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part of 'locations.dart';
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// **************************************************************************
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// JsonSerializableGenerator
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// **************************************************************************
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LatLng _$LatLngFromJson(Map<String, dynamic> json) => LatLng(
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lat: (json['lat'] as num).toDouble(),
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lng: (json['lng'] as num).toDouble(),
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);
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Map<String, dynamic> _$LatLngToJson(LatLng instance) => <String, dynamic>{
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'lat': instance.lat,
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'lng': instance.lng,
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};
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Region _$RegionFromJson(Map<String, dynamic> json) => Region(
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coords: LatLng.fromJson(json['coords'] as Map<String, dynamic>),
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id: json['id'] as String,
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name: json['name'] as String,
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zoom: (json['zoom'] as num).toDouble(),
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);
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Map<String, dynamic> _$RegionToJson(Region instance) => <String, dynamic>{
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'coords': instance.coords,
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'id': instance.id,
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'name': instance.name,
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'zoom': instance.zoom,
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};
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Office _$OfficeFromJson(Map<String, dynamic> json) => Office(
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address: json['address'] as String,
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id: json['id'] as String,
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image: json['image'] as String,
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lat: (json['lat'] as num).toDouble(),
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lng: (json['lng'] as num).toDouble(),
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name: json['name'] as String,
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phone: json['phone'] as String,
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region: json['region'] as String,
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);
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Map<String, dynamic> _$OfficeToJson(Office instance) => <String, dynamic>{
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'address': instance.address,
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'id': instance.id,
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'image': instance.image,
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'lat': instance.lat,
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'lng': instance.lng,
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'name': instance.name,
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'phone': instance.phone,
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'region': instance.region,
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};
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Locations _$LocationsFromJson(Map<String, dynamic> json) => Locations(
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offices: (json['offices'] as List<dynamic>)
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.map((e) => Office.fromJson(e as Map<String, dynamic>))
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.toList(),
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regions: (json['regions'] as List<dynamic>)
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.map((e) => Region.fromJson(e as Map<String, dynamic>))
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.toList(),
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);
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Map<String, dynamic> _$LocationsToJson(Locations instance) => <String, dynamic>{
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'offices': instance.offices,
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'regions': instance.regions,
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};
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