core/java/android/hardware/Sensor.java

/*
 * 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;

/** 
 * Class representing a sensor. Use {@link SensorManager#getSensorList}
 * to get the list of available Sensors.
 */
public class Sensor {

    /** 
     * A constant describing an accelerometer sensor type.
     * See {@link android.hardware.SensorEvent SensorEvent}
     * for more details.
     */
    public static final int TYPE_ACCELEROMETER  = 1;

    /** 
     * A constant describing a magnetic field sensor type.
     * See {@link android.hardware.SensorEvent SensorEvent}
     * for more details.
     */
    public static final int TYPE_MAGNETIC_FIELD = 2;
    
    /** 
     * A constant describing an orientation sensor type.
     * See {@link android.hardware.SensorEvent SensorEvent}
     * for more details.
     */
    public static final int TYPE_ORIENTATION    = 3;

    /** A constant describing a gyroscope sensor type */
    public static final int TYPE_GYROSCOPE      = 4;
    /** A constant describing a light sensor type */
    public static final int TYPE_LIGHT          = 5;
    /** A constant describing a pressure sensor type */
    public static final int TYPE_PRESSURE       = 6;
    /** A constant describing a temperature sensor type */
    public static final int TYPE_TEMPERATURE    = 7;
    /** A constant describing a proximity sensor type */
    public static final int TYPE_PROXIMITY      = 8;

    
    /** 
     * A constant describing all sensor types.
     */
    public static final int TYPE_ALL             = -1;

    /* Some of these fields are set only by the native bindings in 
     * SensorManager.
     */
    private String  mName;
    private String  mVendor;
    private int     mVersion;
    private int     mHandle;
    private int     mType;
    private float   mMaxRange;
    private float   mResolution;
    private float   mPower;
    private int     mLegacyType;
    
    
    Sensor() {
    }

    /**
     * @return name string of the sensor.
     */
    public String getName() {
        return mName;
    }

    /**
     * @return vendor string of this sensor.
     */
    public String getVendor() {
        return mVendor;
    }
    
    /**
     * @return generic type of this sensor.
     */
    public int getType() {
        return mType;
    }
    
    /**
     * @return version of the sensor's module.
     */
    public int getVersion() {
        return mVersion;
    }
    
    /**
     * @return maximum range of the sensor in the sensor's unit.
     */
    public float getMaximumRange() {
        return mMaxRange;
    }
    
    /**
     * @return resolution of the sensor in the sensor's unit.
     */
    public float getResolution() {
        return mResolution;
    }
    
    /**
     * @return the power in mA used by this sensor while in use
     */
    public float getPower() {
        return mPower;
    }
    
    int getHandle() {
        return mHandle;
    }
    
    void setRange(float max, float res) {
        mMaxRange = max;
        mResolution = res;
    }
    
    void setLegacyType(int legacyType) {
        mLegacyType = legacyType;
    }

    int getLegacyType() {
        return mLegacyType;
    }
}