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This change allows the framework to depend on biometric AIDL types, for example: `android.hardware.biometrics.fingerprint.PointerContext`. The dependency can be introduced with a `-java-source` target, for example: `:android.hardware.biometrics.common-V3-java-source`. The "@hide" annotation informs Metalava that these types are not a public API (not part of the SDK). Bug: 218388821 Test: m android.hardware.biometrics.common-update-api Test: m android.hardware.biometrics.face-update-api Test: m android.hardware.biometrics.fingerprint-update-api Change-Id: Ib3327594c64dbb800b9d1744869ceb490d63e553
Biometric HALs
Overview:
The interfaces within the biometrics.* HAL tree are used by the Android Biometric Services (e.g. FingerprintService, FaceService) to discover and operate biometric sensors on the device.
More details and versioning information can be found within each particular HAL.
More complete information about the Android Biometric HALs and subsystem can be found at source.android.com.