Epson Moverio Pro BT-2000, Developer'S Manual

Page: 124 / 202

MOVERIO Pro Developer's Guide (Rev.1.4)
118
7.3. Using SensorEventListener
It is necessary to implement SensorEventListener for sensors using Activity or Service.
Example: Implementing SensorEventListener in Activity
public class SampleActivity extends Activity implements SensorEventListener
7.3.1. Registering sensors being used
When using a sensor, you need to register a sensor listener.
Example) Registering an accelerometer
//System sensor service acquisition
SensorManager sm = (SensorManager)getSystemService( SENSOR_SERVICE );
//Registering an accelerometer (
TYPE_ACCELEROMETER
)
Sensor s = sm.getDefaultSensor(Sensor. TYPE_ACCELEROMETER );
sm.registerListener( this , s, SensorManager. SENSOR_DELAY_NORMAL );
7.3.2. Acquiring a sensor value
You can use the sensor value by acquiring a sensor event in onSensorChanged for SensorEventListener.
Example) Acquiring a sensor value for the accelerometer
@Override
public void onSensorChanged(SensorEvent event) {
//Acquiring the accelerometer value (display log)
if (event. sensor .getType() == Sensor. TYPE_ACCELEROMETER ){
Log. d ( "Sample" , "ax=" +event. values [0]+ ",ay=" +event. values [1]+ ",az=" +event. values [2]);
}
}