Start integrating Smart Lock for Passwords into your Android app
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Before you start integrating Smart Lock for Passwords
into your app, enable the Play Services SDK in your
Android Studio project. Next steps describes how to integrate
Smart Lock for Passwords into your app.
Prerequisites
Smart Lock for Passwords on Android requires the following:
A compatible Android device that runs Android 6.0 or
newer and includes the Google Play Store or an emulator with an AVD that runs
the Google APIs platform based on Android 4.2.2 or newer and has Google Play
services version 15.0.0 or newer.
The latest version of the Android SDK, including the SDK Tools component.
The SDK is available from the Android SDK Manager in Android
Studio.
A project configured to compile against Android 6.0
(Marshmallow) or newer.
This guide is written for users of Android Studio, which is the recommended
development environment.
Configure your Android Studio project
Integrating Smart Lock for Passwords in your Android
app requires you to import and reference the Google Play services library in
your Android Studio project. Add the following line to the dependencies
section of the build.gradle file in your application module:
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eSmart Lock for Passwords is deprecated and developers should migrate to Credential Manager for enhanced security and user experience.\u003c/p\u003e\n"],["\u003cp\u003eCredential Manager supports passkeys, passwords, and federated identity authentication, offering a more robust and unified approach to user credentials.\u003c/p\u003e\n"],["\u003cp\u003eIntegrating Smart Lock for Passwords previously required specific Android device and SDK prerequisites, including compatibility with Android 6.0 or newer and Google Play services.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers needed to configure their Android Studio project by adding the Google Play services library dependency to their build.gradle file before using Smart Lock for Passwords.\u003c/p\u003e\n"],["\u003cp\u003eRetrieving and utilizing user credentials for sign-in within the app was the next step after project configuration for Smart Lock for Passwords integration.\u003c/p\u003e\n"]]],[],null,["| **Deprecated:** Smart Lock for Passwords is deprecated. To ensure the continued security and usability of your app, [migrate to\n| Credential Manager](https://developer.android.com/training/sign-in/passkeys/) today. Credential Manager supports passkey, password, and federated identity authentication (such as Sign-in with Google), stronger security, and a more consistent user experience.\n\nBefore you start integrating Smart Lock for Passwords\ninto your app, enable the Play Services SDK in your\nAndroid Studio project. [Next steps](#next_steps) describes how to integrate\nSmart Lock for Passwords into your app.\n\nPrerequisites\n\nSmart Lock for Passwords on Android requires the following:\n\n- A compatible Android device that runs Android 6.0 or newer and includes the Google Play Store or an emulator with an AVD that runs the Google APIs platform based on Android 4.2.2 or newer and has Google Play services version 15.0.0 or newer.\n- The latest version of the Android SDK, including the SDK Tools component. The SDK is available from the **Android SDK Manager** in Android Studio.\n- A project configured to compile against Android 6.0 (Marshmallow) or newer.\n\nThis guide is written for users of Android Studio, which is the recommended\ndevelopment environment.\n\nConfigure your Android Studio project\n\nIntegrating Smart Lock for Passwords in your Android\napp requires you to import and reference the Google Play services library in\nyour Android Studio project. Add the following line to the `dependencies`\nsection of the `build.gradle` file in your application module: \n\n implementation 'com.google.android.gms:play-services-auth:21.3.0'\n\nNext steps\n\nNow that you have configured your project,\nyou can [retrieve user credentials](/identity/smartlock-passwords/android/retrieve-credentials)\nand use them to sign users in your app."]]