diff options
Diffstat (limited to 'core/java')
| -rw-r--r-- | core/java/android/hardware/Sensor.java | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/core/java/android/hardware/Sensor.java b/core/java/android/hardware/Sensor.java index c3e9cb7..d708791 100644 --- a/core/java/android/hardware/Sensor.java +++ b/core/java/android/hardware/Sensor.java @@ -129,7 +129,7 @@ public final class Sensor { * due to distortions that arise from magnetized iron, steel or permanent magnets on the * device) is not considered in the given sensor values. However, such hard iron bias values * are returned to you separately in the result {@link android.hardware.SensorEvent#values} - * so you may use them for custom calibrations. + * so you may use them for custom calibrations. * <p>Also, no periodic calibration is performed * (i.e. there are no discontinuities in the data stream while using this sensor) and * assumptions that the magnetic field is due to the Earth's poles is avoided, but @@ -174,7 +174,7 @@ public final class Sensor { public static final int TYPE_GYROSCOPE_UNCALIBRATED = 16; /** - * A constant describing the significant motion trigger sensor. + * A constant describing a significant motion trigger sensor. * <p> * It triggers when an event occurs and then automatically disables * itself. The sensor continues to operate while the device is asleep @@ -186,6 +186,42 @@ public final class Sensor { public static final int TYPE_SIGNIFICANT_MOTION = 17; /** + * A constant describing a step detector sensor. + * <p> + * A sensor of this type triggers an event each time a step is taken by the user. The only + * allowed value to return is 1.0 and an event is generated for each step. Like with any other + * event, the timestamp indicates when the event (here the step) occurred, this corresponds to + * when the foot hit the ground, generating a high variation in acceleration. + * <p> + * See {@link android.hardware.SensorEvent#values SensorEvent.values} for more details. + */ + public static final int TYPE_STEP_DETECTOR = 18; + + /** + * A constant describing a step counter sensor. + * <p> + * A sensor of this type returns the number of steps taken by the user since the last reboot + * while activated. The value is returned as a float (with the fractional part set to zero) and + * is reset to zero only on a system reboot. The timestamp of the event is set to the time when + * the first step for that event was taken. This sensor is implemented in hardware and is + * expected to be low power. + * <p> + * See {@link android.hardware.SensorEvent#values SensorEvent.values} for more details. + */ + public static final int TYPE_STEP_COUNTER = 19; + + /** + * A constant describing the geo-magnetic rotation vector. + * <p> + * Similar to {@link #SENSOR_TYPE_ROTATION_VECTOR}, but using a magnetometer instead of using a + * gyroscope. This sensor uses lower power than the other rotation vectors, because it doesn't + * use the gyroscope. However, it is more noisy and will work best outdoors. + * <p> + * See {@link android.hardware.SensorEvent#values SensorEvent.values} for more details. + */ + public static final int TYPE_GEOMAGNETIC_ROTATION_VECTOR = 20; + + /** * A constant describing all sensor types. */ public static final int TYPE_ALL = -1; |