Question

Is there a way to get the values from an Android sensor say every 5 minutes?

For example, is there a way I can poll the AMBIENT_TEMPERATURE sensor every 5 minutes regardless of there being a change in temperature or not?

Right now, I can only access the values from onSensorChanged(SensorEvent arg0) when it gets called so if the temperature didn’t change from start up, I never can access the temperature value?

Thanks! =]

Answer 1

As far as I recall the senors return a value every onSensorChanged-event. You can set up a thread, that reads in the values every 5 minutes.

Edit:

public class OrientationHandler implements SensorEventListener {
    private SensorManager sensorManager = null;
    private static float[] values = new float[3];

    public OrientationHandler(Context context) {
        sensorManager = (SensorManager) context
                        .getSystemService(Context.SENSOR_SERVICE);
        sensorManager.registerListener(this, sensorManager
                                       .getDefaultSensor(Sensor.TYPE_ORIENTATION),
                                       SensorManager.SENSOR_DELAY_FASTEST);
    }

    public void onSensorChanged(SensorEvent event) {
        if (event.sensor.getType() == Sensor.TYPE_ORIENTATION) {
            synchronized (this) {
                OrientationHandler.values = event.values;
            }
        }
    }
}

OrientationHandler.values can be accessed from outside the class (if you write yourself a public Getter-method).