/* * Copyright (C) 2008 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; /** * Used for receiving notifications from the SensorManager when * sensor values have changed. * * @deprecated Use * {@link android.hardware.SensorEventListener SensorEventListener} instead. */ @Deprecated public interface SensorListener { /** *

Called when sensor values have changed. * The length and contents of the values array vary * depending on which sensor is being monitored. * See {@link android.hardware.SensorManager SensorManager} * for details on possible sensor types. * *

Definition of the coordinate system used below.

*

The X axis refers to the screen's horizontal axis * (the small edge in portrait mode, the long edge in landscape mode) and * points to the right. *

The Y axis refers to the screen's vertical axis and points towards * the top of the screen (the origin is in the lower-left corner). *

The Z axis points toward the sky when the device is lying on its back * on a table. *

IMPORTANT NOTE: The axis are swapped when the * device's screen orientation changes. To access the unswapped values, * use indices 3, 4 and 5 in values[]. * *

{@link android.hardware.SensorManager#SENSOR_ORIENTATION SENSOR_ORIENTATION}, * {@link android.hardware.SensorManager#SENSOR_ORIENTATION_RAW SENSOR_ORIENTATION_RAW}:

* All values are angles in degrees. * *

values[0]: Azimuth, rotation around the Z axis (0<=azimuth<360). * 0 = North, 90 = East, 180 = South, 270 = West * *

values[1]: Pitch, rotation around X axis (-180<=pitch<=180), with positive * values when the z-axis moves toward the y-axis. * *

values[2]: Roll, rotation around Y axis (-90<=roll<=90), with positive values * when the z-axis moves toward the x-axis. * *

Note that this definition of yaw, pitch and roll is different from the * traditional definition used in aviation where the X axis is along the long * side of the plane (tail to nose). * *

{@link android.hardware.SensorManager#SENSOR_ACCELEROMETER SENSOR_ACCELEROMETER}:

* All values are in SI units (m/s^2) and measure contact forces. * *

values[0]: force applied by the device on the x-axis *

values[1]: force applied by the device on the y-axis *

values[2]: force applied by the device on the z-axis * *

Examples: *

  • When the device is pushed on its left side toward the right, the * x acceleration value is negative (the device applies a reaction force * to the push toward the left)
    • * *
  • When the device lies flat on a table, the acceleration value is * {@link android.hardware.SensorManager#STANDARD_GRAVITY -STANDARD_GRAVITY}, * which correspond to the force the device applies on the table in reaction * to gravity.
    • * *

    {@link android.hardware.SensorManager#SENSOR_MAGNETIC_FIELD SENSOR_MAGNETIC_FIELD}:

    * All values are in micro-Tesla (uT) and measure the ambient magnetic * field in the X, Y and -Z axis. *

    Note: the magnetic field's Z axis is inverted. * * @param sensor The ID of the sensor being monitored * @param values The new values for the sensor. */ public void onSensorChanged(int sensor, float[] values); /** * Called when the accuracy of a sensor has changed. * See {@link android.hardware.SensorManager SensorManager} * for details. * * @param sensor The ID of the sensor being monitored * @param accuracy The new accuracy of this sensor. */ public void onAccuracyChanged(int sensor, int accuracy); }