Google rät dringend davon ab, einen API-Schlüssel in Ihr Versionsverwaltungssystem einzuchecken. Speichern Sie ihn stattdessen in einer lokalen secrets.properties-Datei im Stammverzeichnis Ihres Projekts, die von der Versionsverwaltung ausgeschlossen ist, und verwenden Sie dann das Secrets Gradle-Plug-in für Android, um ihn auszulesen.
Das Secrets Gradle-Plug-in für Android liest Secrets wie API-Schlüssels aus Attributdateien aus, die nicht in ein Versionsverwaltungssystem eingecheckt sind. Das Plug-in stellt die entsprechenden Attribute dann als Variablen in der von Gradle generierten BuildConfig-Klasse und in der Android-Manifestdatei zur Verfügung.
Unter Android Studio-Projekt einrichten wird anhand eines Beispiels genau erklärt, wie das Secrets Gradle-Plug-in für Android verwendet wird, um auf API-Schlüssel zuzugreifen.
Installation und Nutzung
So installieren Sie das Secrets Gradle-Plug-in für Android in Ihrem Google Maps-Projekt:
-
Öffnen Sie in Android Studio die Datei
build.gradleoderbuild.gradle.ktsauf oberster Ebene und fügen Sie den folgenden Code in dasdependencies-Element unterbuildscriptein.Groovy
buildscript { dependencies { classpath "com.google.android.libraries.mapsplatform.secrets-gradle-plugin:secrets-gradle-plugin:2.0.1" } }Kotlin
buildscript { dependencies { classpath("com.google.android.libraries.mapsplatform.secrets-gradle-plugin:secrets-gradle-plugin:2.0.1") } } -
Öffnen Sie die Datei
build.gradleauf Modulebene und fügen Sie den folgenden Code in dasplugins-Element ein.Groovy
plugins { // ... id 'com.google.android.libraries.mapsplatform.secrets-gradle-plugin' }Kotlin
plugins { id("com.google.android.libraries.mapsplatform.secrets-gradle-plugin") } - In der Datei
build.gradleauf Modulebene müssentargetSdkundcompileSdkauf 34 gesetzt sein. - Speichern Sie die Datei und synchronisieren Sie Ihr Projekt mit Gradle.
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Öffnen Sie die Datei
secrets.propertiesim Verzeichnis der obersten Ebene und fügen Sie den folgenden Code ein. Ersetzen Sie dabeiYOUR_API_KEYdurch Ihren eigenen API-Schlüssel. Speichern Sie den Schlüssel in dieser Datei, dasecrets.propertiesnicht in ein Versionsverwaltungssystem eingecheckt werden kann.MAPS_API_KEY=YOUR_API_KEY
- Speichern Sie die Datei.
-
Erstellen Sie die Datei
local.defaults.propertiesim Verzeichnis der obersten Ebene, im selben Ordner wie die Dateisecrets.properties, und fügen Sie folgenden Code ein.MAPS_API_KEY=DEFAULT_API_KEY
Diese Datei ist ein Ersatzspeicherort für den API-Schlüssel, damit Builds nicht fehlschlagen, falls die Datei
secrets.propertiesnicht gefunden wird. Das kann passieren, wenn Sie die App aus einem Versionsverwaltungssystem klonen, in demsecrets.propertiesnicht vorhanden ist, und noch keine lokale Dateisecrets.propertieserstellt haben, um Ihren API-Schlüssel bereitzustellen. - Speichern Sie die Datei.
-
Gehen Sie in der Datei
AndroidManifest.xmlzucom.google.android.geo.API_KEYund aktualisieren Sie dasandroid:value attribute. Falls das<meta-data>-Tag nicht vorhanden ist, erstellen Sie es als untergeordnetes Element des<application>-Tags.<meta-data android:name="com.google.android.geo.API_KEY" android:value="${MAPS_API_KEY}" />Note:
com.google.android.geo.API_KEYis the recommended metadata name for the API key. A key with this name can be used to authenticate to multiple Google Maps-based APIs on the Android platform, including the Maps SDK for Android. For backwards compatibility, the API also supports the namecom.google.android.maps.v2.API_KEY. This legacy name allows authentication to the Android Maps API v2 only. An application can specify only one of the API key metadata names. If both are specified, the API throws an exception. -
In Android Studio, open your module-level
build.gradleorbuild.gradle.ktsfile and edit thesecretsproperty. If thesecretsproperty does not exist, add it.Edit the properties of the plugin to set
propertiesFileNametosecrets.properties, setdefaultPropertiesFileNametolocal.defaults.properties, and set any other properties.Groovy
secrets { // Optionally specify a different file name containing your secrets. // The plugin defaults to "local.properties" propertiesFileName = "secrets.properties" // A properties file containing default secret values. This file can be // checked in version control. defaultPropertiesFileName = "local.defaults.properties" // Configure which keys should be ignored by the plugin by providing regular expressions. // "sdk.dir" is ignored by default. ignoreList.add("keyToIgnore") // Ignore the key "keyToIgnore" ignoreList.add("sdk.*") // Ignore all keys matching the regexp "sdk.*" }Kotlin
secrets { // Optionally specify a different file name containing your secrets. // The plugin defaults to "local.properties" propertiesFileName = "secrets.properties" // A properties file containing default secret values. This file can be // checked in version control. defaultPropertiesFileName = "local.defaults.properties" // Configure which keys should be ignored by the plugin by providing regular expressions. // "sdk.dir" is ignored by default. ignoreList.add("keyToIgnore") // Ignore the key "keyToIgnore" ignoreList.add("sdk.*") // Ignore all keys matching the regexp "sdk.*" }Weiteres Vorgehen
- Sehen Sie sich die GitHub-Projektseite zum Secrets Gradle-Plug-in für Android an.
- Unter Android Studio-Projekt einrichten finden Sie ein vollständiges Beispiel für die Verwendung des Plug-ins.
Sofern nicht anders angegeben, sind die Inhalte dieser Seite unter der Creative Commons Attribution 4.0 License und Codebeispiele unter der Apache 2.0 License lizenziert. Weitere Informationen finden Sie in den Websiterichtlinien von Google Developers. Java ist eine eingetragene Marke von Oracle und/oder seinen Partnern.
Zuletzt aktualisiert: 2024-08-13 (UTC).
[null,null,["Zuletzt aktualisiert: 2024-08-13 (UTC)."],[[["\u003cp\u003eSecurely manage your Google Maps API key using the Secrets Gradle Plugin for Android, avoiding storage in version control.\u003c/p\u003e\n"],["\u003cp\u003eThe plugin reads your API key from a local \u003ccode\u003esecrets.properties\u003c/code\u003e file and makes it accessible in your \u003ccode\u003eBuildConfig\u003c/code\u003e and manifest.\u003c/p\u003e\n"],["\u003cp\u003eInstall the plugin by adding it as a dependency and applying it in your Gradle files, then configure it to locate your API key.\u003c/p\u003e\n"],["\u003cp\u003eUtilize the \u003ccode\u003elocal.defaults.properties\u003c/code\u003e file to provide a fallback API key for builds and prevent failures when the \u003ccode\u003esecrets.properties\u003c/code\u003e file is missing.\u003c/p\u003e\n"],["\u003cp\u003eRefer to the plugin's GitHub page and the setup guide for detailed information and a comprehensive example.\u003c/p\u003e\n"]]],[],null,["Google strongly recommends that you not check an [API key](/maps/documentation/android-sdk/get-api-key) into your\nversion control system. Instead, you should store it in a local `secrets.properties` file,\nwhich is located in the root directory of your project but excluded from version control, and then\nuse the [Secrets Gradle Plugin for Android](https://github.com/google/secrets-gradle-plugin)\nto read the API key.\n\nThe Secrets Gradle Plugin for Android reads secrets, including the API key, from\na properties file not checked into a version control system. The plugin then exposes those properties\nas variables in the Gradle-generated `BuildConfig` class and in the Android manifest file.\n\nFor a complete example of using the Secrets Gradle Plugin for Android to access an API key,\nsee [Set up an Android Studio project](/maps/documentation/android-sdk/config).\n\n\nInstallation and usage **Note:** See the [Secrets Gradle Plugin for Android](https://github.com/google/secrets-gradle-plugin) documentation on GitHub for the latest system requirements and installation instructions.\n\nTo install the Secrets Gradle Plugin for Android in your Google Maps project:\n\n1. In Android Studio, open your top-level `build.gradle.kts` or `build.gradle` file and add the following code to the `dependencies` element under `buildscript`. \n\n Kotlin \n\n ```yaml\n buildscript {\n dependencies {\n classpath(\"com.google.android.libraries.mapsplatform.secrets-gradle-plugin:secrets-gradle-plugin:2.0.1\")\n }\n }\n ```\n\n Groovy \n\n ```yaml\n buildscript {\n dependencies {\n classpath \"com.google.android.libraries.mapsplatform.secrets-gradle-plugin:secrets-gradle-plugin:2.0.1\"\n }\n }\n ```\n2. Open your module-level `build.gradle.kts` or `build.gradle` file and add the following code to the `plugins` element. \n\n Kotlin \n\n ```kotlin\n plugins {\n // ...\n id(\"com.google.android.libraries.mapsplatform.secrets-gradle-plugin\")\n }\n ```\n\n Groovy \n\n ```yaml\n plugins {\n // ...\n id 'com.google.android.libraries.mapsplatform.secrets-gradle-plugin'\n }\n ```\n3. In your module-level `build.gradle.kts` or `build.gradle` file, ensure that `targetSdk` and `compileSdk` are set to 34.\n4. [Sync your project with Gradle](https://developer.android.com/studio/build#sync-files).\n 5. Open the `secrets.properties` file in your top-level directory, and then add the following code. Replace `YOUR_API_KEY` with your API key. Store your key in this file because `secrets.properties` is excluded from being checked into a version control system. **Note:** If the `secrets.properties` file does not exist, create it in the same folder as the `local.properties` file. \n\n ```scdoc\n MAPS_API_KEY=YOUR_API_KEY\n ```\n6. Create the `local.defaults.properties` file in your top-level directory, the same\n folder as the `secrets.properties` file, and then add the following code.\n\n **Note:** Enter the code as shown. Don't replace `DEFAULT_API_KEY` with your API key. \n\n ```scdoc\n MAPS_API_KEY=DEFAULT_API_KEY\n ```\n\n The purpose of this file is to provide a backup location for the API key if the\n `secrets.properties` file is not found so that builds don't fail. This can happen if\n you clone the app from a version control system which omits `secrets.properties` and\n you have not yet created a `secrets.properties` file locally to provide your\n API key.\n7. In your `AndroidManifest.xml` file, go to `com.google.android.geo.API_KEY` and update the `android:value attribute`. If the `\u003cmeta-data\u003e` tag does not exist, create it as a child of the `\u003capplication\u003e` tag. \n\n ```genshi\n \u003cmeta-data\n android:name=\"com.google.android.geo.API_KEY\"\n android:value=\"${MAPS_API_KEY}\" /\u003e\n ```\n\n **Note:**\n `com.google.android.geo.API_KEY` is the recommended metadata name\n for the API key. A key with this name can be used to authenticate to multiple\n Google Maps-based APIs on the Android platform, including the\n Maps SDK for Android. For backwards compatibility, the API also\n supports the name `com.google.android.maps.v2.API_KEY`. This legacy\n name allows authentication to the Android Maps API v2 only. An application can\n specify only one of the API key metadata names. If both are specified, the API\n throws an exception.\n8. In Android Studio, open your module-level `build.gradle.kts` or\n `build.gradle` file and edit the `secrets` property. If the\n `secrets` property does not exist, add it.\n\n Edit the properties of the plugin to set `propertiesFileName` to\n `secrets.properties`, set `defaultPropertiesFileName` to\n `local.defaults.properties`, and set any other properties. \n\n Kotlin \n\n ```kotlin\n secrets {\n // To add your Maps API key to this project:\n // 1. If the secrets.properties file does not exist, create it in the same folder as the local.properties file.\n // 2. Add this line, where YOUR_API_KEY is your API key:\n // MAPS_API_KEY=YOUR_API_KEY\n propertiesFileName = \"secrets.properties\"\n\n // A properties file containing default secret values. This file can be\n // checked in version control.\n defaultPropertiesFileName = \"local.defaults.properties\"\n }\n \n ```\n\n Groovy \n\n ```groovy\n secrets {\n // To add your Maps API key to this project:\n // 1. If the secrets.properties file does not exist, create it in the same folder as the local.properties file.\n // 2. Add this line, where YOUR_API_KEY is your API key:\n // MAPS_API_KEY=YOUR_API_KEY\n propertiesFileName = \"secrets.properties\"\n\n // A properties file containing default secret values. This file can be\n // checked in version control.\n defaultPropertiesFileName = \"local.defaults.properties\"\n }\n \n ```\n\nWhat's next\n\n- View the [Secrets Gradle Plugin for Android](https://github.com/google/secrets-gradle-plugin) GitHub project page.\n- View [Set up an Android Studio project](/maps/documentation/android-sdk/config) for a complete example of using the plugin."]]