Polygones
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Enregistrez et classez les contenus selon vos préférences.

Cet exemple affiche une carte de l'océan Atlantique avec la forme du triangle des Bermudes dessinée dessus.
Commencer
Avant d'essayer l'exemple de code, vous devez configurer votre environnement de développement.
Pour en savoir plus, consultez Configurer un projet Flutter.
Afficher le code
Dart
// Copyright 2025 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
/// Displays a map of the Atlantic Ocean with the shape of the famous
/// Bermuda Triangle drawn over it.
class PolygonsSample extends StatelessWidget {
const PolygonsSample({super.key});
@override
Widget build(BuildContext context) {
return GoogleMap(
initialCameraPosition: CameraPosition(target: LatLng(25, -72)),
polygons: {
Polygon(
// Polygon id must be unique.
polygonId: PolygonId('bermuda triangle'),
points: [
LatLng(25.28, -80.33),
LatLng(32.29, -64.79),
LatLng(18.51, -65.36),
LatLng(25.28, -80.33), // Same as first point to close polygon.
],
strokeColor: Colors.red,
fillColor: Colors.yellow,
consumeTapEvents: true,
onTap: () => debugPrint('tapped on the Bermuda Triangle'),
),
},
);
}
}
Étapes suivantes
Consultez l'ensemble complet des exemples sur GitHub:
Afficher sur GitHub
Vous pouvez également cloner l'ensemble complet d'exemples pour les exécuter en local en exécutant les commandes suivantes:
git clone -b flutter_samples https://github.com/googlemaps-samples/flutter-maps-samples.git
cd flutter-samples
flutter pub get
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/09/03 (UTC).
[null,null,["Dernière mise à jour le 2025/09/03 (UTC)."],[],[],null,["# Polygons\n\nThis example displays a map of the Atlantic Ocean with the shape of the Bermuda Triangle drawn over it.\n\nGet started\n-----------\n\nBefore you can try the sample code, you must configure your development environment.\nFor more information, see [Set up a Flutter project](/maps/flutter-package/config).\n\nView the code\n-------------\n\n### Dart\n\n```python\n// Copyright 2025 Google LLC\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n// https://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\nimport 'package:flutter/material.dart';\nimport 'package:google_maps_flutter/google_maps_flutter.dart';\n\n/// Displays a map of the Atlantic Ocean with the shape of the famous\n/// Bermuda Triangle drawn over it.\nclass PolygonsSample extends StatelessWidget {\n const PolygonsSample({super.key});\n\n @override\n Widget build(BuildContext context) {\n return GoogleMap(\n initialCameraPosition: CameraPosition(target: LatLng(25, -72)),\n polygons: {\n Polygon(\n // Polygon id must be unique.\n polygonId: PolygonId('bermuda triangle'),\n points: [\n LatLng(25.28, -80.33),\n LatLng(32.29, -64.79),\n LatLng(18.51, -65.36),\n LatLng(25.28, -80.33), // Same as first point to close polygon.\n ],\n strokeColor: Colors.red,\n fillColor: Colors.yellow,\n consumeTapEvents: true,\n onTap: () =\u003e debugPrint('tapped on the Bermuda Triangle'),\n ),\n },\n );\n }\n}\nhttps://github.com/googlemaps-samples/flutter-maps-samples/blob/8f227e8b4d07179e5fb7cc5e8d8cb5440befd229/lib/samples/polygons.dart\n \n```\n\nNext steps\n----------\n\nView the complete set of samples on GitHub:\n\n[View on GitHub](https://github.com/googlemaps-samples/flutter-maps-samples/tree/main/lib/samples)\n\nAlternatively, clone the full set of samples to run them locally by executing the following commands: \n\n git clone -b flutter_samples https://github.com/googlemaps-samples/flutter-maps-samples.git\n cd flutter-samples\n flutter pub get"]]