Flutter プラグインは、Dart チャネルを使って各プラットフォーム固有の API を呼び出します。Flutter デベロッパーが扱うのは、アプリと相対する一元的なパッケージです。このパッケージにより、アプリが実行されているプラットフォームが判別され、API 呼び出しが適切なネイティブ コードと連係します。
対象読者
このドキュメントは、Flutter 開発の概念を理解している人を対象にしています。また、ユーザーの視点で Google マップを使い慣れていることも必要です。本ガイドは、Google Maps for Flutter パッケージを使ったアプリケーションの学習と開発の入門書としてご利用いただけます。個々のクラスとメソッドの詳細については、リファレンス ドキュメントをご参照ください。
帰属表示の要件
アプリで Google Maps for Flutter パッケージを使用する場合は、アプリの法的通知の一部として、帰属情報テキストを含める必要があります。法的通知は、独立したメニュー項目として、またはメニュー項目「このアプリについて」の一部として掲載することをおすすめします。
[null,null,["最終更新日 2023-10-18 UTC。"],[[["\u003cp\u003eThe Google Maps for Flutter package enables developers to integrate Google Maps into their iOS, Android, and web applications, offering features like markers, polylines, and interactive elements.\u003c/p\u003e\n"],["\u003cp\u003eBefore utilizing the package, ensure you have a project with a billing account and the necessary SDKs and API keys enabled, along with designated Project Owners and Billing Administrators.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers using the package should be familiar with Flutter development and Google Maps from a user perspective, adhering to the Google Maps Platform Terms of Service and applicable laws.\u003c/p\u003e\n"],["\u003cp\u003eApplications incorporating the Google Maps for Flutter package must include attribution text in a legal notices section, accessible through a dedicated menu item or an "About" section.\u003c/p\u003e\n"],["\u003cp\u003eThe package supports iOS, Android, and web platforms; for Maps URLs functionality, the target device requires the installation of the relevant Google Maps app.\u003c/p\u003e\n"]]],[],null,["# Before you begin\n\n| Before using the Google Maps for Flutter package, you need a project with a billing account and the Maps SDK for Android, Maps SDK for iOS, and Maps JavaScript API enabled, depending on the platform(s) you are targeting. You also need an API key. Google recommends creating multiple Project Owners and Billing Administrators, so that you'll always have someone with these roles available to your team. For instructions, see [Getting started with Google Maps Platform](/maps/get-started) and [Grant roles in the Google Cloud console](https://cloud.google.com/iam/docs/grant-role-console).\n\nIntroduction\n------------\n\nWith the Google Maps for Flutter package, you can add maps based on Google maps\ndata to your iOS or Android application. The SDK automatically handles access to\nthe Google Maps servers, map display, and response to user gestures such as\nclicks and drags. You can also add markers, polylines, ground overlays, and info\nwindows to your map. These objects provide additional information for map\nlocations, and allow user interaction with the map.\n\nWhen using the SDK you need to comply with the [Google Maps Platform Terms of\nService](https://cloud.google.com/maps-platform/terms) and ensure that your app\ncomplies with applicable laws.\n\nFlutter plugins use Dart channels to call platform-specific APIs. Flutter\ndevelopers interact with a single, app-facing package. This package recognizes\nthe platform that the app is running on and federates the API calls to the\nappropriate native code\n\nAudience\n--------\n\nThis documentation is designed for people familiar with [Flutter\ndevelopment](https://flutter.dev/?utm_source=devsite&utm_medium=maps_docs&utm_campaign=maps_docs) concepts. You should also be\nfamiliar with [Google Maps](https://maps.google.com/) from a user's point of\nview. With this guide, you can start exploring and developing applications with\nthe Google Maps for Flutter package. To learn about specific details of classes and\nmethods, check out the [reference\ndocumentation](https://api.flutter.dev/index.html?utm_source=devsite&utm_medium=maps_docs&utm_campaign=maps_docs).\n\nAttribution requirements\n------------------------\n\nIf you use the Google Maps for Flutter package in your application, you must\ninclude the attribution text as part of a legal notices section in your\napplication. Google recommend including legal notices as an independent menu\nitem, or as part of an \"About\" menu item.\n\nTo get the attribution text, call the [`showLicensePage`](https://api.flutter.dev/flutter/material/showLicensePage.html?utm_source=devsite&utm_medium=maps_docs&utm_campaign=maps_docs)\nendpoint.\n\nSupported platforms\n-------------------\n\nWith the Google Maps for Flutter package, you can build apps that target iOS,\nAndroid and the Web.\n\nRefer to the Flutter documentation for the development environments requirements\nand current versions of [target\nplatforms](https://docs.flutter.dev/reference/supported-platforms%0A?utm_source=devsite&utm_medium=maps_docs&utm_campaign=maps_docs).\n\nTo use [Maps\nURLs](https://developers.google.com/maps/documentation/ios-sdk/urlscheme), your\ntarget device needs the appropriate Google Maps app installed. For mobile\ndevices, this includes [Google Maps for\niOS](https://itunes.apple.com/app/id585027354) or\n[Google Maps for Android](https://play.google.com/store/apps/details?id=com.google.android.apps.maps&hl=en_US&gl=US&pli=1)."]]
