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Hinweis
Bevor Sie mit dem Programmieren mit der Nearby Connections API beginnen:
Berechtigungen anfordern
Bevor du Nearby Connections verwenden kannst, muss deine App die entsprechenden
Berechtigungen. Fügen Sie Ihrem AndroidManifest.xml die folgenden Berechtigungen hinzu:
<!-- Required for Nearby Connections -->
<uses-permission android:maxSdkVersion="31" android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:maxSdkVersion="31" android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:maxSdkVersion="30" android:name="android.permission.BLUETOOTH" />
<uses-permission android:maxSdkVersion="30" android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:maxSdkVersion="28" android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:minSdkVersion="29" android:maxSdkVersion="31" android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:minSdkVersion="31" android:name="android.permission.BLUETOOTH_ADVERTISE" />
<uses-permission android:minSdkVersion="31" android:name="android.permission.BLUETOOTH_CONNECT" />
<uses-permission android:minSdkVersion="31" android:name="android.permission.BLUETOOTH_SCAN" />
<uses-permission android:minSdkVersion="32" android:name="android.permission.NEARBY_WIFI_DEVICES" />
<!-- Optional: only required for FILE payloads -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
Seit
ACCESS_FINE_LOCATION
BLUETOOTH_ADVERTISE
BLUETOOTH_CONNECT
BLUETOOTH_SCAN
und
READ_EXTERNAL_STORAGE
gelten als gefährliches System
Berechtigungen,
Sie müssen diese Berechtigungen nicht nur Ihrem Manifest hinzufügen, sondern auch anfordern.
zur Laufzeit, wie unter Anfordern von
Berechtigungen.
Wenn der Nutzer nicht alle erforderlichen Berechtigungen gewährt, gibt die Nearby Connections API
Ihre App darf keine Anzeigen schalten oder Inhalte entdecken.
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: 2025-08-13 (UTC).
[null,null,["Zuletzt aktualisiert: 2025-08-13 (UTC)."],[[["\u003cp\u003eBefore using the Nearby Connections API, install the Google Play Services SDK and review the provided code samples.\u003c/p\u003e\n"],["\u003cp\u003eApps using Nearby Connections must request specific permissions in the \u003ccode\u003eAndroidManifest.xml\u003c/code\u003e to function correctly.\u003c/p\u003e\n"],["\u003cp\u003eSeveral permissions, like location and Bluetooth access, require runtime requests due to their sensitive nature.\u003c/p\u003e\n"],["\u003cp\u003eThe Nearby Connections API will not function if the user denies necessary permissions for advertising or discovery.\u003c/p\u003e\n"]]],["To use the Nearby Connections API, install the Google Play Services SDK and review the code samples. In your `AndroidManifest.xml`, add permissions for `ACCESS_WIFI_STATE`, `CHANGE_WIFI_STATE`, `BLUETOOTH`, `BLUETOOTH_ADMIN`, `ACCESS_COARSE_LOCATION`, `ACCESS_FINE_LOCATION`, `BLUETOOTH_ADVERTISE`, `BLUETOOTH_CONNECT`, `BLUETOOTH_SCAN`, and `NEARBY_WIFI_DEVICES`. For `ACCESS_FINE_LOCATION`, `BLUETOOTH_ADVERTISE`, `BLUETOOTH_CONNECT`, `BLUETOOTH_SCAN` and `READ_EXTERNAL_STORAGE` also request these permissions at runtime, as they are classified as dangerous. The app can not use the API if the user does not provide the permissions.\n"],null,["# Get started\n\nBefore you begin\n----------------\n\nBefore you start to code using the Nearby Connections API:\n\n- Install the [Google Play Services\n SDK](//developer.android.com/google/play-services/setup.html).\n- Download and review the [Nearby Connections API code\n samples](https://github.com/android/connectivity-samples/tree/main/NearbyConnectionsWalkieTalkie).\n\nRequest permissions\n-------------------\n\nBefore using Nearby Connections, your app must request the appropriate\npermissions. Add the following permissions to your `AndroidManifest.xml`: \n\n```gdscript\n\u003c!-- Required for Nearby Connections --\u003e\n\u003cuses-permission android:maxSdkVersion=\"31\" android:name=\"android.permission.ACCESS_WIFI_STATE\" /\u003e\n\u003cuses-permission android:maxSdkVersion=\"31\" android:name=\"android.permission.CHANGE_WIFI_STATE\" /\u003e\n\u003cuses-permission android:maxSdkVersion=\"30\" android:name=\"android.permission.BLUETOOTH\" /\u003e\n\u003cuses-permission android:maxSdkVersion=\"30\" android:name=\"android.permission.BLUETOOTH_ADMIN\" /\u003e\n\u003cuses-permission android:maxSdkVersion=\"28\" android:name=\"android.permission.ACCESS_COARSE_LOCATION\" /\u003e\n\u003cuses-permission android:minSdkVersion=\"29\" android:maxSdkVersion=\"31\" android:name=\"android.permission.ACCESS_FINE_LOCATION\" /\u003e\n\u003cuses-permission android:minSdkVersion=\"31\" android:name=\"android.permission.BLUETOOTH_ADVERTISE\" /\u003e\n\u003cuses-permission android:minSdkVersion=\"31\" android:name=\"android.permission.BLUETOOTH_CONNECT\" /\u003e\n\u003cuses-permission android:minSdkVersion=\"31\" android:name=\"android.permission.BLUETOOTH_SCAN\" /\u003e\n\u003cuses-permission android:minSdkVersion=\"32\" android:name=\"android.permission.NEARBY_WIFI_DEVICES\" /\u003e\n\u003c!-- Optional: only required for FILE payloads --\u003e\n\u003cuses-permission android:name=\"android.permission.READ_EXTERNAL_STORAGE\"/\u003e\n```\n\nSince\n[ACCESS_FINE_LOCATION](https://developer.android.com/reference/android/Manifest.permission#ACCESS_FINE_LOCATION),\n[BLUETOOTH_ADVERTISE](https://developer.android.com/reference/android/Manifest.permission#BLUETOOTH_ADVERTISE),\n[BLUETOOTH_CONNECT](https://developer.android.com/reference/android/Manifest.permission#BLUETOOTH_CONNECT),\n[BLUETOOTH_SCAN](https://developer.android.com/reference/android/Manifest.permission#BLUETOOTH_SCAN)\nand\n[READ_EXTERNAL_STORAGE](https://developer.android.com/reference/android/Manifest.permission#READ_EXTERNAL_STORAGE)\nare considered to be [dangerous system\npermissions](//developer.android.com/guide/topics/permissions/requesting.html#normal-dangerous),\nin addition to adding them to your manifest, you must request these permissions\nat runtime, as described in [Requesting\nPermissions](//developer.android.com/training/permissions/requesting.html).\n\nIf the user does not grant all required permissions, the Nearby Connections API\nwill refuse to allow your app to start advertising or discovering."]]
