I checked with my Vodafone branded HTC Magic (using Android 1.5 API). Using SensorEventListener and the following code to register the listener:
Sensor accSensor = mSensorManager.getSensorList (Sensor.TYPE_ACCELEROMETER).get(0); mSensorManager.registerListener(accSensorListener, accSensor, SENSOR_DELAY); I tried values for SENSOR_DELAY: SensorManager.SENSOR_DELAY_FASTEST, SensorManager.SENSOR_DELAY_GAME and SensorManager.SENSOR_DELAY_NORMAL... all give me g vectors with magnitude ~ 9.8. Joe. On Jun 30, 2:17 pm, Peli <[email protected]> wrote: > > x: 12.5625 y: 20.8125 z: -16.4375 > > Unfortunately, I didn't have a chance yet to try out sensors through > the SDK 1.5 API on a real device yet, but these numbers look like they > could be from a compass (in microTesla). > > Did you try rotating the device around its axis, while lying flat on > the table? Do the x and y values change? If they do, then you have > compass data (because accelerometer is not sensitive to that > rotation). If you don't then you have really weird accelerometer > data... > > Peliwww.openintents.org > > On Jun 29, 3:58 pm, "House n @ MIT" <[email protected]> wrote: > > > Hello, > > I've been doing some testing on the accelerometer, specifically with > > the old SensorListener and new SensorEventListener versions available > > as of Cupcake. > > > Using SensorListener, I've been getting normal acceleration values as > > expected according to the documentation - around 9.8 on the axis in > > line with gravity when sitting still. When I upgraded the code to > > SensorEventListener, that number jumped to around 30, which is not > > consistent with the documentation. I've tried sampling at different > > rates, but generally I've been using game mode, since that's the rate > > I ultimately intend to use. > > > I'd be interested to hear if anyone has seen this behavior, has any > > ideas about it, or sees an issue with the code below. Give it a test > > run yourself. It might be relevant to note that the > > SensorEvent.accuracy is SENSOR_STATUS_ACCURACY_HIGH. > > > When I run this code with the phone sitting flat on a table, screen, > > up, I get values like these: > > > x: 12.5625 y: 20.8125 z: -16.4375 > > > //////////////////////////////////////////////////////////////////// > > > package edu.accel; > > > import java.io.File; > > import java.io.FileNotFoundException; > > import java.io.FileOutputStream; > > import java.io.PrintWriter; > > import java.util.List; > > > import android.app.Activity; > > import android.content.Context; > > import android.hardware.Sensor; > > import android.hardware.SensorEvent; > > import android.hardware.SensorEventListener; > > import android.hardware.SensorManager; > > import android.os.Bundle; > > > public class AccelTest extends Activity { > > > private SensorManager mSensorManager; > > > @Override > > public void onCreate(Bundle savedInstanceState) { > > super.onCreate(savedInstanceState); > > setContentView(R.layout.main); > > > // Set up the accelerometer reading > > mSensorManager = (SensorManager)getSystemService > > (Context.SENSOR_SERVICE); > > // Get the list of all sensors, and find the accelerometer > > within > > List<Sensor> sensorList = mSensorManager.getSensorList > > (SensorManager.SENSOR_ACCELEROMETER); > > > mSensorManager.registerListener(mSensorListener, > > sensorList.get(0), > > SensorManager.SENSOR_DELAY_UI); > > > } > > > //Accelerometer > > private final SensorEventListener mSensorListener = new > > SensorEventListener() { > > > private PrintWriter mCurrentFile; > > > boolean never = true; > > String comma = new String(","); > > > public void runOnce() > > { > > //Creating a file to print the data into > > > String nameStr = new String("/sdcard/10 second trials.xls"); > > File outputFile = new File(nameStr); > > mCurrentFile = null; > > try { > > mCurrentFile = new PrintWriter(new > > FileOutputStream(outputFile)); > > } catch (FileNotFoundException e) { > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } > > > } > > > @Override > > public void onAccuracyChanged(Sensor sensor, int accuracy) { > > // TODO Auto-generated method stub > > > } > > > @Override > > public void onSensorChanged(SensorEvent event) { > > > if (never) > > { > > never = false; > > runOnce(); > > } > > StringBuffer buff = new StringBuffer(); > > buff.append(String.valueOf(event.values[0])); > > buff.append(comma); > > buff.append(String.valueOf(event.values[1])); > > buff.append(comma); > > buff.append(String.valueOf(event.values[2])); > > mCurrentFile.println(buff.toString()); > > } > > }; > > > } > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
