Android Sensor

package com.orientation;

import android.app.Activity;
import android.hardware.SensorListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

public class Orientation extends Activity implements SensorListener {
  private static final String TAG = "SensorDemo";
  private SensorManager sensorManager;
  private TextView outView;
  private int sensor = SensorManager.SENSOR_ORIENTATION;
  double[] values;

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    outView = (TextView) findViewById(R.id.output);
 


    // Real sensor manager
    sensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);


  }

  /** Register for the updates when Activity is in foreground */
  @Override
  protected void onResume() {
    super.onResume();
    Log.d(TAG, "onResume");
    sensorManager.registerListener(this, sensor);
  }

  /** Stop the updates when Activity is paused */
  @Override
  protected void onPause() {
    super.onPause();
    Log.d(TAG, "onPause");
    sensorManager.unregisterListener(this, sensor);
  }

  public void onAccuracyChanged(int sensor, int accuracy) {
    Log.d(TAG, String.format("onAccuracyChanged  sensor: %d   accuraccy: %d",
        sensor, accuracy));
  }

  public void onSensorChanged(int sensorReporting, float[] values) {
    if (sensorReporting != sensor)
      return;


    float azimuth = Math.round(values[0]);
    float pitch = Math.round(values[1]);
    float roll = Math.round(values[2]);
 
    String out = String.format("Azimuth: %.2f  \n   Pitch: %.2f   \n   Roll: %.2f",azimuth, pitch, roll);
 
    Log.d(TAG, out);
 
    outView.setText(out);
  }
}

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