source: other-projects/tipple-android/tipple-ar/compass-test/src/comp/namespace/CompassActivity.java@ 26528

package comp.namespace;

import android.app.Activity;
import android.os.Bundle;

import comp.namespace.R;

import android.app.Activity;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.TextView;

public class CompassActivity extends Activity implements SensorEventListener {
 
 // Accelerometer X, Y, and Z values
 private TextView accelXValue;
 private TextView accelYValue;
 private TextView accelZValue;
 
 // Orientation X, Y, and Z values
 private TextView orientXValue;
 private TextView orientYValue;
 private TextView orientZValue;
 
 private SensorManager sensorManager = null;
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // Get a reference to a SensorManager
        sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        setContentView(R.layout.main);
      
        // Capture accelerometer related view elements
        accelXValue = (TextView) findViewById(R.id.accel_x_value);
        accelYValue = (TextView) findViewById(R.id.accel_y_value);
        accelZValue = (TextView) findViewById(R.id.accel_z_value);
      
        // Capture orientation related view elements
        orientXValue = (TextView) findViewById(R.id.orient_x_value);
        orientYValue = (TextView) findViewById(R.id.orient_y_value);
        orientZValue = (TextView) findViewById(R.id.orient_z_value);
      
        // Initialise accelerometer related view elements
        accelXValue.setText("0.00");
        accelYValue.setText("0.00");
        accelZValue.setText("0.00");
      
        // Initialise orientation related view elements
        orientXValue.setText("0.00");
        orientYValue.setText("0.00");
        orientZValue.setText("0.00");      
    }
  
    // This method will update the UI on new sensor events
    public void onSensorChanged(SensorEvent sensorEvent) {
     synchronized (this) {
      if (sensorEvent.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
       accelXValue.setText(Float.toString(sensorEvent.values[0]));
       accelYValue.setText(Float.toString(sensorEvent.values[1]));
       accelZValue.setText(Float.toString(sensorEvent.values[2]));       
      }
      
      if (sensorEvent.sensor.getType() == Sensor.TYPE_ORIENTATION) {
       orientXValue.setText(Float.toString(sensorEvent.values[0]));
       orientYValue.setText(Float.toString(sensorEvent.values[1]));
       orientZValue.setText(Float.toString(sensorEvent.values[2]));       
      }
     }
    }
  
    // I've chosen to not implement this method
    public void onAccuracyChanged(Sensor arg0, int arg1) {
  // TODO Auto-generated method stub
  
 }
  
    @Override
    protected void onResume() {
     super.onResume();
     // Register this class as a listener for the accelerometer sensor
     sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
     // ...and the orientation sensor
     sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION), SensorManager.SENSOR_DELAY_NORMAL);
    }
  
    @Override
    protected void onStop() {
     // Unregister the listener
     sensorManager.unregisterListener(this);
     super.onStop();
    } 
 
}