/* * Copyright 2020 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.fingerprint@2.3; import @2.2::IBiometricsFingerprint; /** * New use of this interface is strongly discouraged. The recommended option is * to use the AIDL interface, android.hardware.biometrics.fingerprint * (IFingerprint). * * The interface for biometric fingerprint authentication. */ interface IBiometricsFingerprint extends @2.2::IBiometricsFingerprint { /** * Returns whether the fingerprint sensor is an under-display fingerprint * sensor. * @param sensorId the unique sensor ID for which the operation should be * performed. * @return isUdfps indicating whether the specified sensor is an * under-display fingerprint sensor. */ isUdfps(uint32_t sensorId) generates (bool isUdfps); /** * Notifies about a touch occurring within the under-display fingerprint * sensor area. * * It it assumed that the device can only have one active under-display * fingerprint sensor at a time. * * If multiple fingers are detected within the sensor area, only the * chronologically first event will be reported. * * @param x The screen x-coordinate of the center of the touch contact area, in * display pixels. * @param y The screen y-coordinate of the center of the touch contact area, in * display pixels. * @param minor The length of the minor axis of an ellipse that describes the * touch area, in display pixels. * @param major The length of the major axis of an ellipse that describes the * touch area, in display pixels. */ onFingerDown(uint32_t x, uint32_t y, float minor, float major); /** * Notifies about a finger leaving the under-display fingerprint sensor area. * * It it assumed that the device can only have one active under-display * fingerprint sensor at a time. * * If multiple fingers have left the sensor area, only the finger which * previously caused a "finger down" event will be reported. */ onFingerUp(); };