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authorThe Android Open Source Project <initial-contribution@android.com>2008-12-17 18:05:43 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2008-12-17 18:05:43 -0800
commitf013e1afd1e68af5e3b868c26a653bbfb39538f8 (patch)
tree7ad6c8fd9c7b55f4b4017171dec1cb760bbd26bf /core/java/android/hardware/SensorListener.java
parente70cfafe580c6f2994c4827cd8a534aabf3eb05c (diff)
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Code drop from //branches/cupcake/...@124589
Diffstat (limited to 'core/java/android/hardware/SensorListener.java')
-rw-r--r--core/java/android/hardware/SensorListener.java64
1 files changed, 60 insertions, 4 deletions
diff --git a/core/java/android/hardware/SensorListener.java b/core/java/android/hardware/SensorListener.java
index d676a5e..cfa184b 100644
--- a/core/java/android/hardware/SensorListener.java
+++ b/core/java/android/hardware/SensorListener.java
@@ -19,18 +19,74 @@ package android.hardware;
/**
* Used for receiving notifications from the SensorManager when
* sensor values have changed.
+ *
+ * This interface is deprecated, use
+ * {@link android.hardware.SensorEventListener SensorEventListener} instead.
+ *
*/
+@Deprecated
public interface SensorListener {
/**
- * Called when sensor values have changed.
+ * <p>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 and values.
+ * for details on possible sensor types.
*
+ * <p><u>Definition of the coordinate system used below.</u><p>
+ * <p>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.
+ * <p>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).
+ * <p>The Z axis points toward the sky when the device is lying on its back
+ * on a table.
+ * <p> <b>IMPORTANT NOTE:</b> The axis <b><u>are swapped</u></b> when the
+ * device's screen orientation changes. To access the unswapped values,
+ * use indices 3, 4 and 5 in values[].
+ *
+ * <p>{@link android.hardware.SensorManager#SENSOR_ORIENTATION SENSOR_ORIENTATION},
+ * {@link android.hardware.SensorManager#SENSOR_ORIENTATION_RAW SENSOR_ORIENTATION_RAW}:<p>
+ * All values are angles in degrees.
+ *
+ * <p>values[0]: Azimuth, rotation around the Z axis (0<=azimuth<360).
+ * 0 = North, 90 = East, 180 = South, 270 = West
+ *
+ * <p>values[1]: Pitch, rotation around X axis (-180<=pitch<=180), with positive
+ * values when the z-axis moves toward the y-axis.
+ *
+ * <p>values[2]: Roll, rotation around Y axis (-90<=roll<=90), with positive values
+ * when the z-axis moves toward the x-axis.
+ *
+ * <p>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).
+ *
+ * <p>{@link android.hardware.SensorManager#SENSOR_ACCELEROMETER SENSOR_ACCELEROMETER}:<p>
+ * All values are in SI units (m/s^2) and measure contact forces.
+ *
+ * <p>values[0]: force applied by the device on the x-axis
+ * <p>values[1]: force applied by the device on the y-axis
+ * <p>values[2]: force applied by the device on the z-axis
+ *
+ * <p><u>Examples</u>:
+ * <li>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)</li>
+ *
+ * <li>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.</li>
+ *
+ * <p>{@link android.hardware.SensorManager#SENSOR_MAGNETIC_FIELD SENSOR_MAGNETIC_FIELD}:<p>
+ * All values are in micro-Tesla (uT) and measure the ambient magnetic
+ * field in the X, Y and -Z axis.
+ * <p><b><u>Note:</u></b> 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
+ * @param values The new values for the sensor.
*/
public void onSensorChanged(int sensor, float[] values);
@@ -40,7 +96,7 @@ public interface SensorListener {
* for details.
*
* @param sensor The ID of the sensor being monitored
- * @param accuracy The new accuracy of this sensor
+ * @param accuracy The new accuracy of this sensor.
*/
public void onAccuracyChanged(int sensor, int accuracy);
}