Add some new modality-specific APIs in BiometricManager. (02adb885) · Commits · e / os / android_frameworks_base

core/api/system-current.txt

+14 −0

Original line number	Diff line number	Diff line
		@@ -4925,6 +4925,20 @@ package android.hardware {

		package android.hardware.biometrics {

		@FlaggedApi("android.hardware.biometrics.move_fm_api_to_bm") public final class BiometricEnrollmentStatus implements android.os.Parcelable {
		method public int describeContents();
		method @IntRange(from=0) public int getEnrollCount();
		method public int getModality();
		method public void writeToParcel(@NonNull android.os.Parcel, int);
		field @NonNull public static final android.os.Parcelable.Creator<android.hardware.biometrics.BiometricEnrollmentStatus> CREATOR;
		}

		public class BiometricManager {
		method @FlaggedApi("android.hardware.biometrics.move_fm_api_to_bm") @NonNull @RequiresPermission(android.Manifest.permission.SET_BIOMETRIC_DIALOG_ADVANCED) public java.util.Set<android.hardware.biometrics.BiometricEnrollmentStatus> getEnrollmentStatus();
		field @FlaggedApi("android.hardware.biometrics.move_fm_api_to_bm") @RequiresPermission(android.Manifest.permission.SET_BIOMETRIC_DIALOG_ADVANCED) public static final int TYPE_FACE = 8; // 0x8
		field @FlaggedApi("android.hardware.biometrics.move_fm_api_to_bm") @RequiresPermission(android.Manifest.permission.SET_BIOMETRIC_DIALOG_ADVANCED) public static final int TYPE_FINGERPRINT = 2; // 0x2
		}

		public static interface BiometricManager.Authenticators {
		field @RequiresPermission(android.Manifest.permission.WRITE_DEVICE_CONFIG) public static final int BIOMETRIC_CONVENIENCE = 4095; // 0xfff
		field @RequiresPermission(android.Manifest.permission.WRITE_DEVICE_CONFIG) public static final int EMPTY_SET = 0; // 0x0

core/java/android/hardware/biometrics/BiometricEnrollmentStatus.aidl

0 → 100644

+19 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2025 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		package android.hardware.biometrics;

		// @hide
		parcelable BiometricEnrollmentStatus;

core/java/android/hardware/biometrics/BiometricEnrollmentStatus.java

0 → 100644

+108 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2025 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.hardware.biometrics;

		import android.annotation.FlaggedApi;
		import android.annotation.IntRange;
		import android.annotation.NonNull;
		import android.annotation.SystemApi;
		import android.os.Parcel;
		import android.os.Parcelable;

		/**
		* This class contains enrollment information. It keeps track of the modality type (e.g.
		* fingerprint, face) and the number of times the biometric has been enrolled.
		*
		* @hide
		*/
		@SystemApi
		@FlaggedApi(Flags.FLAG_MOVE_FM_API_TO_BM)
		public final class BiometricEnrollmentStatus implements Parcelable {
		@BiometricManager.BiometricModality
		private final int mModality;
		private final int mEnrollCount;

		/**
		* @hide
		*/
		public BiometricEnrollmentStatus(
		@BiometricManager.BiometricModality int modality, int enrollCount) {
		mModality = modality;
		mEnrollCount = enrollCount;
		}

		/**
		* Returns the modality associated with this enrollment status.
		*
		* @return The int value representing the biometric sensor type, e.g.
		* {@link BiometricManager#TYPE_FACE} or
		* {@link BiometricManager#TYPE_FINGERPRINT}.
		*/
		@BiometricManager.BiometricModality
		public int getModality() {
		return mModality;
		}

		/**
		* Returns the number of enrolled biometric for the associated modality.
		*
		* @return The number of enrolled biometric.
		*/
		@IntRange(from = 0)
		public int getEnrollCount() {
		return mEnrollCount;
		}

		private BiometricEnrollmentStatus(Parcel in) {
		this(in.readInt(), in.readInt());
		}

		@NonNull
		public static final Creator<BiometricEnrollmentStatus> CREATOR = new Creator<>() {
		@Override
		public BiometricEnrollmentStatus createFromParcel(Parcel in) {
		return new BiometricEnrollmentStatus(in);
		}

		@Override
		public BiometricEnrollmentStatus[] newArray(int size) {
		return new BiometricEnrollmentStatus[size];
		}
		};

		@Override
		public void writeToParcel(@NonNull Parcel dest, int flags) {
		dest.writeInt(mModality);
		dest.writeInt(mEnrollCount);
		}

		@Override
		public int describeContents() {
		return 0;
		}

		@Override
		public String toString() {
		String modality = "";
		if (mModality == BiometricManager.TYPE_FINGERPRINT) {
		modality = "Fingerprint";
		} else if (mModality == BiometricManager.TYPE_FACE) {
		modality = "Face";
		}
		return "Modality: " + modality + ", Enrolled Count: " + mEnrollCount;
		}
		}

core/java/android/hardware/biometrics/BiometricManager.java

+65 −2

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package android.hardware.biometrics;

		import static android.Manifest.permission.SET_BIOMETRIC_DIALOG_ADVANCED;
		import static android.Manifest.permission.TEST_BIOMETRIC;
		import static android.Manifest.permission.USE_BIOMETRIC;
		import static android.Manifest.permission.USE_BIOMETRIC_INTERNAL;
		@@ -45,7 +46,9 @@ import com.android.internal.util.FrameworkStatsLog;
		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.util.ArrayList;
		import java.util.HashSet;
		import java.util.List;
		import java.util.Set;

		/**
		* A class that contains biometric utilities. For authentication, see {@link BiometricPrompt}.
		@@ -142,6 +145,37 @@ public class BiometricManager {
		@Retention(RetentionPolicy.SOURCE)
		public @interface BiometricError {}

		/**
		* Constant representing fingerprint.
		* @hide
		*/
		@SystemApi
		@FlaggedApi(Flags.FLAG_MOVE_FM_API_TO_BM)
		@RequiresPermission(SET_BIOMETRIC_DIALOG_ADVANCED)
		public static final int TYPE_FINGERPRINT = BiometricAuthenticator.TYPE_FINGERPRINT;

		/**
		* Constant representing face.
		* @hide
		*/
		@SystemApi
		@FlaggedApi(Flags.FLAG_MOVE_FM_API_TO_BM)
		@RequiresPermission(SET_BIOMETRIC_DIALOG_ADVANCED)
		public static final int TYPE_FACE = BiometricAuthenticator.TYPE_FACE;

		/**
		* An {@link IntDef} representing the biometric modalities.
		* @hide
		*/
		@IntDef(flag = true, value = {
		TYPE_FINGERPRINT,
		TYPE_FACE
		})
		@Retention(RetentionPolicy.SOURCE)
		@interface BiometricModality {
		}


		/**
		* Types of authenticators, defined at a level of granularity supported by
		* {@link BiometricManager} and {@link BiometricPrompt}.
		@@ -406,8 +440,6 @@ public class BiometricManager {

		/**
		* @hide
		* @param context
		* @param service
		*/
		public BiometricManager(@NonNull Context context, @NonNull IAuthService service) {
		mContext = context;
		@@ -566,6 +598,37 @@ public class BiometricManager {
		return new Strings(mContext, mService, authenticators);
		}

		/**
		* Return the current biometrics enrollment status set.
		*
		* <p>Returning more than one status indicates that the device supports multiple biometric
		* modalities (e.g., fingerprint, face, iris). Each {@link BiometricEnrollmentStatus} object
		* within the returned collection provides detailed information about the enrollment state for a
		* particular modality.
		*
		* <p>This method is intended for system apps, such as settings or device setup, which require
		* detailed enrollment information to show or hide features or to encourage users to enroll
		* in a specific modality. Applications should instead use
		* {@link BiometricManager#canAuthenticate(int)} to check the enrollment status and use the
		* enroll intent, when needed to allow users to enroll. That ensures that users are presented
		* with a consistent set of options across all of their apps and can be redirected to a
		* single system-managed settings surface.</p>
		*
		* @hide
		*/
		@SystemApi
		@RequiresPermission(SET_BIOMETRIC_DIALOG_ADVANCED)
		@FlaggedApi(Flags.FLAG_MOVE_FM_API_TO_BM)
		@NonNull
		public Set<BiometricEnrollmentStatus> getEnrollmentStatus() {
		try {
		return new HashSet<BiometricEnrollmentStatus>(
		mService.getEnrollmentStatus(mContext.getOpPackageName()));
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}

		/**
		* @hide
		* @param userId

core/java/android/hardware/biometrics/IAuthService.aidl

+4 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import android.hardware.biometrics.IBiometricServiceReceiver;
		import android.hardware.biometrics.IInvalidationCallback;
		import android.hardware.biometrics.ITestSession;
		import android.hardware.biometrics.ITestSessionCallback;
		import android.hardware.biometrics.BiometricEnrollmentStatus;
		import android.hardware.biometrics.PromptInfo;
		import android.hardware.biometrics.SensorPropertiesInternal;

		@@ -64,6 +65,9 @@ interface IAuthService {
		// Checks if any biometrics are enrolled.
		boolean hasEnrolledBiometrics(int userId, String opPackageName);

		// Return the current biometrics enrollment status.
		List<BiometricEnrollmentStatus> getEnrollmentStatus(String opPackageName);

		// Register callback for when keyguard biometric eligibility changes.
		void registerEnabledOnKeyguardCallback(IBiometricEnabledOnKeyguardCallback callback);