Orchestration SDKs

Configuring Android apps for OIDC sign-on

PingOne PingOne Advanced Identity Cloud PingAM OIDC-compliant servers Android

You can configure your Android apps to use your authorization server’s UI, or your own web application, for sign-on requests.

When a user attempts to sign on to your app it redirects them to the central sign-on UI. After the user authenticates, the authorization server redirects them back to your application or site.

Changes to authentication journeys or flows on your authorization server are available to all your apps that use the OIDC sign-on method, without the need to rebuild or redistribute the app. Likewise, any rebranding applied to your central sign-on UI is reflected immediately in your client apps.

Your app doesn’t need to access user credentials directly, just the result of the authentication from the server—usually an access token.

To configure an Android app to perform OIDC sign-on, complete each of the following steps:

Before you begin

You need to prepare your server for OIDC sign-on. Select your server from the options below and complete the tasks before proceeding to configure your application.

  • PingOne

  • Advanced Identity Cloud

  • AM

  • PingFederate

This tutorial requires you to configure your PingOne server as follows:

Task 1. Create a demo user

The samples and tutorials in this documentation often require that you have an identity set up so that you can test authentication.

To create a demo user in PingOne, follow these steps:

  1. Log in to your PingOne administration console.

  2. In the left panel, navigate to Directory > Users.

  3. Next to the Users label, click the plus icon ().

    PingOne displays the Add User panel.

  4. Enter the following details:

    • Given Name = Demo

    • Family Name = User

    • Username = demo

    • Email = demo.user@example.com

    • Population = Default

    • Password = Ch4ng3it!

  5. Click Save.

Task 2. Register a public OAuth 2.0 client

To register a public OAuth 2.0 client application in PingOne for use with the Orchestration SDKs for Android and iOS, follow these steps:

  1. Log in to your PingOne administration console.

  2. In the left panel, navigate to Applications > Applications.

  3. Next to the Applications label, click the plus icon ().

    PingOne displays the Add Application panel.

  4. In Application Name, enter a name for the profile, for example sdkNativeClient

  5. Select Native as the Application Type, and then click Save.

  6. On the Configuration tab, click the pencil icon ().

    1. In Grant Type, select the following values:

      Authorization Code

      Refresh Token

    2. In Redirect URIs, enter the following values:

      com.example.demo://oauth2redirect

    3. In Token Endpoint Authentication Method, select None.

    4. In the Advanced Settings section, enable Terminate User Session by ID Token.

    5. Click Save.

  7. On the Resources tab, next to Allowed Scopes, click the pencil icon ().

    1. In Scopes, select the following values:

      email

      phone

      profile

      The openid scope is selected by default.

      The result resembles the following:

      Adding scopes to an application.
      Figure 1. Adding scopes to an application.

  8. Optionally, on the Policies tab, click the pencil icon () to select the authentication policies for the application.

    Applications that have no authentication policy assignments use the environment’s default authentication policy to authenticate users.

    If you have a DaVinci license, you can select PingOne policies or DaVinci Flow policies, but not both. If you do not have a DaVinci license, the page only displays PingOne policies.

    To use a PingOne policy:

    1. Click Add policies and then select the policies that you want to apply to the application.

    2. Click Save.

      PingOne applies the policies in the order in which they appear in the list. PingOne evaluates the first policy in the list first. If the requirements are not met, PingOne moves to the next one.

      For more information, see Authentication policies for applications.

    To use a DaVinci Flow policy:

    1. You must clear all PingOne policies. Click Deselect all PingOne Policies.

    2. In the confirmation message, click Continue.

    3. On the DaVinci Policies tab, select the policies that you want to apply to the application.

    4. Click Save.

      PingOne applies the first policy in the list.

  9. Click Save.

  10. Enable the OAuth 2.0 client application by using the toggle next to its name:

    Enable the application using the toggle.
    Figure 2. Enable the application using the toggle.

The application is now configured to accept client connections from and issue OAuth 2.0 tokens to the Android and iOS PingOne example applications and tutorials covered by this documentation.

This tutorial requires you to configure your PingOne Advanced Identity Cloud tenant as follows:

Task 1. Create a demo user

The samples and tutorials in this documentation often require that you have an identity set up so that you can test authentication.

To create a demo user in PingOne Advanced Identity Cloud, follow these steps:

  1. Log in to your PingOne Advanced Identity Cloud tenant.

  2. In the left panel, click Identities > Manage.

  3. Click New Alpha realm - User.

  4. Enter the following details:

    • Username = demo

    • First Name = Demo

    • Last Name = User

    • Email Address = demo.user@example.com

    • Password = Ch4ng3it!

  5. Click Save.

Task 2. Register a public OAuth 2.0 client

Public clients do not use a client secret to obtain tokens because they are unable to keep them hidden. The Orchestration SDKs commonly use this type of client to obtain tokens, as they cannot guarantee safekeeping of the client credentials in a browser or on a mobile device.

To register a public OAuth 2.0 client application for use with the SDKs in PingOne Advanced Identity Cloud, follow these steps:

  1. Log in to your PingOne Advanced Identity Cloud tenant.

  2. In the left panel, click Applications.

  3. Click Custom Application.

  4. Select OIDC - OpenId Connect as the sign-in method, and then click Next.

  5. Select Native / SPA as the application type, and then click Next.

  6. In Name, enter a name for the application, such as Public SDK Client.

  7. In Owners, select a user that is responsible for maintaining the application, and then click Next.

    When trying out the SDKs, you could select the demo user you created previously.

  8. In Client ID, enter sdkPublicClient

  9. Select Configure for SDK Sample Apps.

  10. Click Create Application.

    PingOne Advanced Identity Cloud creates the application and displays the details screen.

  11. On the Sign On tab:

    1. In Sign-In URLs, ensure the following values appear, or add them if they don’t:

      com.example.demo://oauth2redirect

      https://demo.example.com/oauth2redirect

      Also add any other domains where you host SDK applications.

    2. In Grant Types, ensure the following values appear:

      Authorization Code

      Refresh Token

    3. In Scopes, ensure the following values appear:

      openid profile email address

  12. Click Show advanced settings, and on the Authentication tab, confirm the following properties:

    1. In Token Endpoint Authentication Method, select none.

    2. In Client Type, select Public.

    3. Enable the Implied Consent property.

  13. Click Save.

The application is now configured to accept client connections from and issue OAuth 2.0 tokens to the example applications and tutorials covered by this documentation.

Task 3. Configure the OAuth 2.0 provider

The provider specifies the supported OAuth 2.0 configuration options for a realm.

To ensure the PingOne Advanced Identity Cloud OAuth 2.0 provider service is configured for use with the Orchestration SDKs, follow these steps:

  1. In your PingOne Advanced Identity Cloud tenant, navigate to Native Consoles > Access Management.

  2. In the left panel, click Services.

  3. In the list of services, click OAuth2 Provider.

  4. On the Core tab, ensure Issue Refresh Tokens is enabled.

  5. On the Consent tab, ensure Allow Clients to Skip Consent is enabled.

  6. Click Save Changes.

This tutorial requires you to configure your AM server as follows:

Task 1. Create a demo user

The samples and tutorials in this documentation often require that you have an identity set up so that you can test authentication.

To create a demo user in PingAM, follow these steps:

  1. Log in to the PingAM admin UI as an administrator.

  2. Navigate to Identities, and then click Add Identity.

  3. Enter the following details:

    • User ID = demo

    • Password = Ch4ng3it!

    • Email Address = demo.user@example.com

  4. Click Create.

Task 2. Register a public OAuth 2.0 client

Public clients do not use a client secret to obtain tokens because they are unable to keep them hidden. The Orchestration SDKs commonly use this type of client to obtain tokens, as they cannot guarantee safekeeping of the client credentials in a browser or on a mobile device.

To register a public OAuth 2.0 client application for use with the SDKs in AM, follow these steps:

  1. Log in to the PingAM admin UI as an administrator.

  2. Navigate to Applications > OAuth 2.0 > Clients, and then click Add Client.

  3. In Client ID, enter sdkPublicClient.

  4. Leave Client secret empty.

  5. In Redirection URIs, enter the following values:

    com.example.demo://oauth2redirect

    https://demo.example.com/oauth2redirect

    Also add any other domains where you will be hosting SDK applications.

  6. In Scopes, enter the following values:

    openid profile email address

  7. Click Create.

    PingAM creates the new OAuth 2.0 client, and displays the properties for further configuration.

  8. On the Core tab:

    1. In Client type, select Public.

    2. Disable Allow wildcard ports in redirect URIs.

    3. Click Save Changes.

  9. On the Advanced tab:

    1. In Grant Types, enter the following values:

      Authorization Code
Refresh Token

    2. In Token Endpoint Authentication Method, select None.

    3. Enable the Implied consent property.

  10. Click Save Changes.

Task 3. Configure the OAuth 2.0 provider

The provider specifies the supported OAuth 2.0 configuration options for a realm.

To ensure the PingAM OAuth 2.0 provider service is configured for use with the Orchestration SDKs, follow these steps:

  1. Log in to the PingAM admin UI as an administrator.

  2. In the left panel, click Services.

  3. In the list of services, click OAuth2 Provider.

  4. On the Core tab, ensure Issue Refresh Tokens is enabled.

  5. On the Consent tab, ensure Allow Clients to Skip Consent is enabled.

  6. Click Save Changes.

This tutorial requires you to configure your PingFederate server as follows:

Task 1. Register a public OAuth 2.0 client

OAuth 2.0 client application profiles define how applications connect to PingFederate and obtain OAuth 2.0 tokens.

To allow the Orchestration SDKs to connect to PingFederate and obtain OAuth 2.0 tokens, you must register an OAuth 2.0 client application:

  1. Log in to the PingFederate administration console as an administrator.

  2. Navigate to Applications  OAuth  Clients.

  3. Click Add Client.

    PingFederate displays the Clients | Client page.

  4. In Client ID and Name, enter a name for the profile, for example sdkPublicClient

    Make a note of the Client ID value, you will need it when you configure the sample code.

  5. In Client Authentication, select None.

  6. In Redirect URIs, add the following:

    com.example.demo://oauth2redirect

    https://demo.example.com/oauth2redirect

    Also add any other URLs where you host SDK applications.

    Failure to add redirect URLs that exactly match your client app’s values can cause PingFederate to display an error message such as Redirect URI mismatch when attempting to end a session by redirecting from the SDK.

  7. In Allowed Grant Types, select the following values:

    Authorization Code

    Refresh Token

  8. In the OpenID Connect section:

    1. In Logout Mode, select Ping Front-Channel

    2. In Front-Channel Logout URIs, add the following:

      com.example.demo://oauth2redirect

      https://demo.example.com/oauth2redirect

      Also add any other URLs that redirect users to PingFederate to end their session.

      Failure to add sign off URLs that exactly match your client app’s values can cause PingFederate to display an error message such as invalid post logout redirect URI when attempting to end a session by redirecting from the SDK.

    3. In Post-Logout Redirect URIs, add the following:

      com.example.demo://oauth2redirect

      https://demo.example.com/oauth2redirect

  9. Click Save.

    After changing PingFederate configuration using the administration console, you must replicate the changes to each server node in the cluster before they take effect.

    In the PingFederate administration console, navigate to System > Server > Cluster Management, and click Replicate.

    The application is now configured to accept client connections from and issue OAuth 2.0 tokens to the Orchestration SDK PingFederate example applications and tutorials covered by this documentation.

Task 2. Configure CORS

Cross-origin resource sharing (CORS) lets user agents make cross-domain server requests. In PingFederate, you can configure CORS to allow browsers or apps from trusted domains to access protected resources.

To configure CORS in PingFederate follow these steps:

  1. Log in to the PingFederate administration console as an administrator.

  2. Navigate to System  OAuth Settings  Authorization Server Settings.

  3. In the Cross-Origin Resource Sharing Settings section, in the Allowed Origin field, enter any DNS aliases you use for your SDK apps.

    This documentation assumes the following configuration:

    Property Values

    Allowed Origin

    com.example.demo://oauth2redirect

  4. Click Save.

    After changing PingFederate configuration using the administration console, you must replicate the changes to each server node in the cluster before they take effect.

    In the PingFederate administration console, navigate to System > Server > Cluster Management, and click Replicate.

    Your PingFederate server is now able to accept connections from origins hosting apps built with the Orchestration SDKs.

Step 1. Configuring your app to handle redirects

After completing authentication in the browser, the server redirects the user back to your application, by using the value of the redirect_uri parameter.

You need to configure your app to open and accept the data the server sends as part of the redirect.

There are two methods for configuring an Android app to handle redirect URIs. To ensure that only your app is able to obtain authorization tokens during OIDC sign-on we recommend you configure it to use Android App Links.

If you don’t want to implement Android App Links, you can instead use a custom scheme for your redirect URIs.

  • Custom Scheme

You can configure your Android app to open and handle redirects that match the base domain of your authorization server, and use the HTTPS protocol.

Using this method, your redirect URI will resemble the following:

https://demo.example.com/oauth2redirect

To configure App Links in an Android application, perform the following steps:

  1. In your application, configure the Orchestration SDK browser module to use the HTTPS scheme for capturing redirect URIs, by adding an <intent-filter> for com.pingidentity.browser.CustomTabActivity to your AndroidManifest.xml:

    AndroidManifest.xml
    <activity
    android:name="com.pingidentity.browser.CustomTabActivity"
    android:exported="true"
    android:launchMode="singleTop">
    <intent-filter android:autoVerify="true">
        <action android:name="android.intent.action.VIEW" />

        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />

        <data android:scheme="https" />
        <data android:host="demo.example.com" />
        <data android:path="/oauth2redirect" />
    </intent-filter>
</activity>

    • You must set android:autoVerify to true. This instructs Android to verify the specified host against the assetlinks.json file you update in the next step.

    • Specify the scheme, hosts, and path parameters to use in your redirect URIs. The host value must match the domain where you upload the assetlinks.json file.

    To learn more about intents, refer to Add intent filters in the Android Developer documentation.

  2. For Android 11 or higher, add the following to the AndroidManfest.xml file:

    AndroidManifest.xml
    <queries>
     <intent>
         <action android:name="android.intent.action.VIEW" />
         <category android:name="android.intent.category.BROWSABLE" />
         <data android:scheme="https" />
     </intent>
 </queries>

  3. Create or update a Digital Asset Links (assetlinks.json) file that associates your app with your domain.

    You must host the file in a .well-known folder on the same host that you entered in the intent filter earlier.

    The file will resemble the following:

    https://demo.example.com/.well-known/assetlinks.json
    [
  {
    "relation": [
      "delegate_permission/common.handle_all_urls",
    ],
    "target": {
      "namespace": "android_app",
      "package_name": "com.example.demo",
      "sha256_cert_fingerprints": [
        "c4:15:c8:f1:...:fe:ce:d7:37"
      ]
    }
  }
]

  4. Upload the completed file to the domain that matches the host value you configured in the earlier step.

    For information on uploading an assetLinks.json file to an Advanced PingOne Advanced Identity Cloud instance, refer to Upload an Android assetlinks.json file.

You can configure your Android app to open and handle redirects that use a custom scheme, rather than HTTPS.

Using this method, your redirect URI will resemble the following:

com.example.demo://oauth2redirect

To configure a custom scheme in an Android application, perform the following steps:

  1. Add the custom scheme your app will use to your gradle.build.kts file:

    android {
    defaultConfig {
        manifestPlaceholders["appRedirectUriScheme"] = "com.example.demo"
    }
}

    The custom scheme consists of the string before the colon (:) character in the URI.

  2. For Android 11 or higher, add the following to the AndroidManfest.xml file:

    <queries>
     <intent>
         <action android:name="android.intent.action.VIEW" />
         <category android:name="android.intent.category.BROWSABLE" />
         <data android:scheme="com.example.demo" />
     </intent>
 </queries>

Step 2. Installing modules

For OIDC sign-on, you need these modules:

  • oidc

  • browser

To install these modules into your Android app:

  1. In the Project tree view of your Android Studio project, open the build.gradle.kts file.

  2. In the dependencies section, add the oidc and browser modules as dependencies:

    dependencies {
    implementation("com.pingidentity.sdks:oidc:2.0.0")
    implementation("com.pingidentity.sdks:browser:2.0.0")
}

Step 3. Configuring connection properties

Configure the oidc module to connect to your OpenID Connect 1.0-compliant authorization server:

Required parameters to configure the oidc module
val web = OidcWeb {
    logger = Logger.STANDARD
    module(com.pingidentity.oidc.module.Oidc) {
        discoveryEndpoint =
            "https://auth.pingone.ca/3072206d-c6ce-ch15-m0nd-f87e972c7cc3/as/.well-known/openid-configuration"
        clientId = "6c7eb89a-66e9-ab12-cd34-eeaf795650b2"
        redirectUri = "https://demo.example.com/oath2redirect"
        scopes = mutableSetOf("openid", "email", "address", "profile", "phone")
    }
}

Update the following properties with values that match your environment:

discoveryEndpoint

The .well-known endpoint from your OAuth 2.0 application.

How do I find my PingOne .well-known URL?

To find the .well-known endpoint for an OAuth 2.0 client in PingOne:

  1. Log in to your PingOne administration console.

  2. Go to Applications > Applications, and then select your OAuth 2.0 client.

    For example, sdkPublicClient.

  3. On the Overview tab, expand the Connection Details section, and then copy the OIDC Discovery Endpoint value.

    Locating the .well-known URL in a PingOne client profile.
How do I form my PingFederate .well-known URL?

To form the .well-known endpoint for a PingFederate server:

  1. Log in to your PingFederate administration console.

  2. Navigate to System  Server  Protocol Settings.

  3. Make a note of the Base URL value.

    For example, https://pingfed.example.com

    Do not use the admin console URL.

  4. Append /.well-known/openid-configuration after the base URL value to form the .well-known endpoint of your server.

    For example, https://pingfed.example.com/.well-known/openid-configuration.

    The SDK reads the OAuth 2.0 paths it requires from this endpoint.

How do I find my PingOne Advanced Identity Cloud .well-known URL?

You can view the .well-known endpoint for an OAuth 2.0 client in the PingOne Advanced Identity Cloud admin console:

  1. Log in to your PingOne Advanced Identity Cloud administration console.

  2. Click Applications, and then select the OAuth 2.0 client you created earlier. For example, sdkPublicClient.

  3. On the Sign On tab, in the Client Credentials section, copy the Discovery URI value.

    For example, https://openam-forgerock-sdks.forgeblocks.com/am/oauth2/alpha/.well-known/openid-configuration

If you are using a custom domain, your .well-known is formed as follows:

https://<custom-domain-fqdn>/.well-known/openid-configuration

Learn more in Access OIDC configuration discovery endpoint.
How do I find my PingAM .well-known URL?

To form the .well-known URL for an PingAM server, concatenate the following information into a single URL:

  1. The base URL of the PingAM component of your deployment, including the port number and deployment path.

    For example, https://openam.example.com:8443/openam

  2. The string /oauth2

  3. The hierarchy of the realm that contains the OAuth 2.0 client.

    You must specify the entire hierarchy of the realm, starting at the Top Level Realm. Prefix each realm in the hierarchy with the realms/ keyword.

    For example, /realms/root/realms/customers

    If you omit the realm hierarchy, the top level ROOT realm is used by default.

  4. The string /.well-known/openid-configuration

For example, https://openam.example.com:8443/openam/oauth2/realms/root/.well-known/openid-configuration

For example, https://auth.pingone.ca/3072206d-c6ce-ch15-m0nd-f87e972c7cc3/as/.well-known/openid-configuration

clientId

The client ID of your OAuth 2.0 application.

For example, 6c7eb89a-66e9-ab12-cd34-eeaf795650b2

redirectUri

The redirect URI as configured in the OAuth 2.0 client profile.

This value must exactly match one of the values configured in your OAuth 2.0 client.

For example:

App link / HTTPS redirect URI:

https://demo.example.com/oauth2redirect

Custom scheme redirect URI:

com.example.demo://oauth2redirect

scopes

The scopes you added to your OAuth 2.0 application.

For example, "openid", "email", "address", "profile", "phone"

You can pass optional OAuth 2.0 parameters into configuration to affect the OAuth 2.0 flow on the server.

Adding optional parameters when configuring the oidc module
val web = OidcWeb {
    logger = Logger.STANDARD
    module(com.pingidentity.oidc.module.Oidc) {
        discoveryEndpoint =
            "https://auth.pingone.ca/3072206d-c6ce-ch15-m0nd-f87e972c7cc3/as/.well-known/openid-configuration"
        clientId = "6c7eb89a-66e9-ab12-cd34-eeaf795650b2"
        redirectUri = "https://demo.example.com/oath2redirect"
        scopes = mutableSetOf("openid", "email", "address", "profile", "phone")
        acrValues = "Single_Factor%20Multi_Factor"
        loginHint = "demo.user@example.com"
    }
}

For example, you can add the following parameters:

acrValues

An optional space-separated list of Authentication Context Class Reference (acr) values, in order of preference.

The server can use these values to help determine how the user should be authenticated.

For example, you can specify a DaVinci flow policy ID, or PingOne policy names to request that PingOne follows a particular path to authenticate the user.

The Orchestration SDK sends this as the acr_values parameter in the authentication request, as per the specification.

loginHint

An optional string that lets the server know what identifier the user might use to authenticate with.

The server can use this to pre-populate a sign-on form, or to customize the UI to match a particular brand or organization.

The Orchestration SDK sends this as the login_hint parameter in the authentication request, as per the specification.

Learn more about OAuth 2.0 authentication request parameters in Authentication Request, in the OpenID Connect Core 1.0 specification.

Step 4. Starting the OAuth 2.0 flow

The oidc module provides the authorize() method, which launches the web browsers and starts the OAuth 2.0 flow.

Start the OAuth 2.0 flow by using the authorize() method
web.authorize()
  .onSuccess { user ->
    ...
  }.onFailure { throwable ->
    ...
  }

You can inject or override OAuth 2.0 parameters, and pass custom key-pair values when starting the OAuth 2.0 flow with the authorize() method.

Adding parameters when using the authorize() method
web.authorize(
    "acrValues" to "Social_Signon",
    "loginHint" to "+1 303 555 0100",
    "customParameter" to "my_custom_value"
).onSuccess { user ->
    ...
  }.onFailure { throwable ->
    ...
  }

Step 5. Obtaining an Access Token

After successfully starting the OAuth 2.0 flow and authenticating the user, the server redirects control back to your application. Your application receives the OAuth 2.0 code and state parameters it needs to continue the flow and obtain an access token.

To obtain an access token on behalf of a user, follow these steps:

  1. Create an object that represents a user’s authentication session by using the user() method:

    Create a user object by calling the user() method
    val user = web.user()

  2. Retrieve a token on behalf of the user by calling the token() method on your user object, and handle the result:

    Obtain an access token for a user by calling user.token() and handle the result
    when (val result = user.token()) {
    is Result.Failure -> {
        when (result.value) {
            is OidcError.ApiError -> TODO()
            is OidcError.AuthenticationRequired -> TODO()
            is OidcError.AuthorizeError -> TODO()
            is OidcError.NetworkError -> TODO()
            is OidcError.Unknown -> TODO()
        }
    }
    is Result.Success -> {
        val accessToken = result.value
    }
}

Step 6. Revoking tokens and signing out

You can call the following methods on your user object to revoke OAuth 2.0 tokens, and sign out the user from the server:

user.revoke()

Revokes the OAuth 2.0 tokens on the server, and deletes them from storage.

user.logout()

Removes an session tokens the user may have, and contacts the server to end the user’s session.

Step 7. Customizing browser tabs

The OIDC module uses Auth Tabs for OIDC sign-on where possible, and falls back to use a custom tab if not.

You can customize aspects of how both of these appear in your app:

Auth tabs

Auth Tabs provide enhanced security features for OAuth 2.0 flows and are automatically used when supported by the device and when the redirect URI uses a custom scheme.

Learn more in Simplify authentication using Auth Tab in the Chrome for Developers documentation.

To customize the auth tab, add your preferred configuration to BrowserLauncher.authTabCustomizer before you call authorize(), as follows:

Customizing auth tabs on Android
BrowserLauncher.authTabCustomizer = {
    setColorScheme(CustomTabsIntent.COLOR_SCHEME_DARK)
    // Add other AuthTabsIntent configurations as needed
}
Custom tabs

The OIDC module falls back to using custom tabs if auth tabs are not supported on the device.

To customize the auth tab, add your preferred configuration to BrowserLauncher.customTabsCustomizer before you call authorize(), as follows:

Customizing custom tabs on Android
BrowserLauncher.customTabsCustomizer = {
    setShowTitle(false)
    setColorScheme(CustomTabsIntent.COLOR_SCHEME_SYSTEM) // Use the system default color scheme
    setToolbarColor(
        ContextCompat.getColor(
            context,
            R.color.colorPrimary
        )
    ) // Set a specific toolbar color
    setUrlBarHidingEnabled(true)
    // Add other CustomTabsIntent configurations as needed
}

Learn more in Customizing the UI in the Chrome for Developers documentation.