1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.hardware; 18 19 /** 20 * Used for receiving notifications from the SensorManager when 21 * sensor values have changed. 22 */ 23 public interface SensorEventListener { 24 25 /** 26 * Called when sensor values have changed. 27 * <p>See {@link android.hardware.SensorManager SensorManager} 28 * for details on possible sensor types. 29 * <p>See also {@link android.hardware.SensorEvent SensorEvent}. 30 * 31 * <p><b>NOTE:</b> The application doesn't own the 32 * {@link android.hardware.SensorEvent event} 33 * object passed as a parameter and therefore cannot hold on to it. 34 * The object may be part of an internal pool and may be reused by 35 * the framework. 36 * 37 * @param event the {@link android.hardware.SensorEvent SensorEvent}. 38 */ onSensorChanged(SensorEvent event)39 public void onSensorChanged(SensorEvent event); 40 41 /** 42 * Called when the accuracy of the registered sensor has changed. 43 * 44 * <p>See the SENSOR_STATUS_* constants in 45 * {@link android.hardware.SensorManager SensorManager} for details. 46 * 47 * @param accuracy The new accuracy of this sensor, one of 48 * {@code SensorManager.SENSOR_STATUS_*} 49 */ onAccuracyChanged(Sensor sensor, int accuracy)50 public void onAccuracyChanged(Sensor sensor, int accuracy); 51 } 52