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[google_maps_flutter] cloud-based map styling implementation (#4638)
This PR is sub-PR splitted out from the #3682 containing only following packages: - google_maps_flutter_web - google_maps_flutter_android - google_maps_flutter_ios Related to issue flutter/flutter#67631
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packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md
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packages/google_maps_flutter/google_maps_flutter_android/example/lib/map_map_id.dart
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| // Copyright 2013 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| // ignore_for_file: public_member_api_docs | ||
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| import 'package:flutter/material.dart'; | ||
| import 'package:google_maps_flutter_android/google_maps_flutter_android.dart'; | ||
| import 'package:google_maps_flutter_platform_interface/google_maps_flutter_platform_interface.dart'; | ||
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| import 'example_google_map.dart'; | ||
| import 'main.dart'; | ||
| import 'page.dart'; | ||
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| class MapIdPage extends GoogleMapExampleAppPage { | ||
| const MapIdPage({Key? key}) | ||
| : super(const Icon(Icons.map), 'Cloud-based maps styling', key: key); | ||
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| @override | ||
| Widget build(BuildContext context) { | ||
| return const MapIdBody(); | ||
| } | ||
| } | ||
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| class MapIdBody extends StatefulWidget { | ||
| const MapIdBody({super.key}); | ||
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| @override | ||
| State<StatefulWidget> createState() => MapIdBodyState(); | ||
| } | ||
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| const LatLng _kMapCenter = LatLng(52.4478, -3.5402); | ||
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| class MapIdBodyState extends State<MapIdBody> { | ||
| ExampleGoogleMapController? controller; | ||
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| Key _key = const Key('mapId#'); | ||
| String? _mapId; | ||
| final TextEditingController _mapIdController = TextEditingController(); | ||
| AndroidMapRenderer? _initializedRenderer; | ||
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| @override | ||
| void initState() { | ||
| initializeMapRenderer() | ||
| .then<void>((AndroidMapRenderer? initializedRenderer) => setState(() { | ||
| _initializedRenderer = initializedRenderer; | ||
| })); | ||
| super.initState(); | ||
| } | ||
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| String _getInitializedsRendererType() { | ||
| switch (_initializedRenderer) { | ||
| case AndroidMapRenderer.latest: | ||
| return 'latest'; | ||
| case AndroidMapRenderer.legacy: | ||
| return 'legacy'; | ||
| case AndroidMapRenderer.platformDefault: | ||
| case null: | ||
| break; | ||
| } | ||
| return 'unknown'; | ||
| } | ||
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| void _setMapId() { | ||
| setState(() { | ||
| _mapId = _mapIdController.text; | ||
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| // Change key to initialize new map instance for new mapId. | ||
| _key = Key(_mapId ?? 'mapId#'); | ||
| }); | ||
| } | ||
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| @override | ||
| Widget build(BuildContext context) { | ||
| final ExampleGoogleMap googleMap = ExampleGoogleMap( | ||
| onMapCreated: _onMapCreated, | ||
| initialCameraPosition: const CameraPosition( | ||
| target: _kMapCenter, | ||
| zoom: 7.0, | ||
| ), | ||
| key: _key, | ||
| cloudMapId: _mapId, | ||
| ); | ||
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| final List<Widget> columnChildren = <Widget>[ | ||
| Padding( | ||
| padding: const EdgeInsets.all(10.0), | ||
| child: Center( | ||
| child: SizedBox( | ||
| width: 300.0, | ||
| height: 200.0, | ||
| child: googleMap, | ||
| ), | ||
| ), | ||
| ), | ||
| Padding( | ||
| padding: const EdgeInsets.all(10.0), | ||
| child: TextField( | ||
| controller: _mapIdController, | ||
| decoration: const InputDecoration( | ||
| hintText: 'Map Id', | ||
| ), | ||
| )), | ||
| Padding( | ||
| padding: const EdgeInsets.all(10.0), | ||
| child: ElevatedButton( | ||
| onPressed: () => _setMapId(), | ||
| child: const Text( | ||
| 'Press to use specified map Id', | ||
| ), | ||
| )), | ||
| if (_initializedRenderer != AndroidMapRenderer.latest) | ||
| Padding( | ||
| padding: const EdgeInsets.all(10.0), | ||
| child: Text( | ||
| 'On Android, Cloud-based maps styling only works with "latest" renderer.\n\n' | ||
| 'Current initialized renderer is "${_getInitializedsRendererType()}".'), | ||
| ), | ||
| ]; | ||
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| return Column( | ||
| crossAxisAlignment: CrossAxisAlignment.stretch, | ||
| children: columnChildren, | ||
| ); | ||
| } | ||
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| @override | ||
| void dispose() { | ||
| _mapIdController.dispose(); | ||
| super.dispose(); | ||
| } | ||
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| void _onMapCreated(ExampleGoogleMapController controllerParam) { | ||
| setState(() { | ||
| controller = controllerParam; | ||
| }); | ||
| } | ||
| } |
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