Can you use the biometric manager and biometric prompt to do facial recognition?

Question

I am currently using the biometric manager and biometric prompt to create a fingerprint authentication app on a google pixel 2. The code below is for that app. However, i was wondering if i changed to developing on a google pixel 4 instead could i still use the biometric manager / biometric prompt to do facial recognition for authentication instead of a fingerprint? The same premise in which the registered face to the device could be the only face to login. Any help or explanation would be great thanks!

      // Building the fingerprint scanner
    final Executor executor = Executors.newSingleThreadExecutor();

    final BiometricPrompt biometricPrompt = new BiometricPrompt.Builder(this)
            .setTitle("Biosecure")
            .setSubtitle("Fingerprint Authentication")
            .setDescription("Please scan your fingerprint")
            .setNegativeButton("cancel", executor, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                }
            }).build();

    // Scanning fingerprint
    btnScanFinger.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v) {
            biometricPrompt.authenticate(new CancellationSignal(), executor, new BiometricPrompt.AuthenticationCallback() {
                @Override
                public void onAuthenticationError(int errorCode, CharSequence errString) {
                    super.onAuthenticationError(errorCode, errString);
                }

                @Override
                public void onAuthenticationHelp(int helpCode, final CharSequence helpString) {
                    super.onAuthenticationHelp(helpCode, helpString);

                }

                @Override
                public void onAuthenticationSucceeded(BiometricPrompt.AuthenticationResult result) {
                    super.onAuthenticationSucceeded(result);

                    activity.runOnUiThread(new Runnable() {
                        @Override
                        public void run()
                        {

                            Toast.makeText(Login_Biometrics.this, "Fingerprint authenticated successfully", Toast.LENGTH_LONG).show();
                            fingerprintAuth = true;
                            please.setText("Please input your pin");
                            fingerprint.setVisibility(View.INVISIBLE);
                            btnScanFinger.setVisibility(View.INVISIBLE);
                            PinInput.setVisibility(View.VISIBLE);
                        }
                    });

                }

Solution:

Use the same code altered for facial recognition with a device that uses face authentication to unlock . I used a Google Pixel 4. Remember to add permissions for using biometrics.

    <uses-permission android:name="android.permission.USE_BIOMETRIC" />

        // Building the fingerprint scanner
    final Executor executor = Executors.newSingleThreadExecutor();

    final BiometricPrompt biometricPrompt = new BiometricPrompt.Builder(this)
            .setTitle("Biosecure")
            .setSubtitle("Face Authentication")
            .setDescription("Please scan your face")
            .setNegativeButton("cancel", executor, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                }
            }).build();

    btnScanFinger.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v) {
            biometricPrompt.authenticate(new CancellationSignal(), executor, new BiometricPrompt.AuthenticationCallback() {
                @Override
                public void onAuthenticationError(int errorCode, CharSequence errString) {
                    super.onAuthenticationError(errorCode, errString);
                }

                @Override
                public void onAuthenticationHelp(int helpCode, final CharSequence helpString) {
                    super.onAuthenticationHelp(helpCode, helpString);

                }

                @Override
                public void onAuthenticationSucceeded(BiometricPrompt.AuthenticationResult result) {
                    super.onAuthenticationSucceeded(result);

                    activity.runOnUiThread(new Runnable() {
                        @Override
                        public void run()
                        {

                            Toast.makeText(MainActivity.this, "Face scanned succesfully", Toast.LENGTH_LONG).show();
                            fingerprintAuth = true;

                        }
                    });

                }