public void onSensorChanged(SensorEvent event) {
   if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
     if (magnetic != null) {
       SensorManager.getRotationMatrix(baseR, null, event.values, magnetic);
     }
     if (baseR != null) SensorManager.getOrientation(baseR, currR);
   } else {
     if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
       magnetic = event.values;
     }
   }
   int orientation = display.getOrientation();
   if (currR != null)
     switch (orientation) {
       case (1):
         mLayout.setDepth((int) (MAX_DEPTH * (1.7f + currR[2])));
         break;
       default:
         mLayout.setDepth((int) (MAX_DEPTH * (currR[1] + 1.4f)));
         break;
     }
 }
 @Override
 public void onActivityCreated(android.os.Bundle savedInstanceState) {
   super.onActivityCreated(savedInstanceState);
   this.getView().findViewById(R.id.editProgram).setOnClickListener(this);
   this.getView().findViewById(R.id.startProgram).setOnClickListener(this);
   btnHelpAbout = (Button) this.getView().findViewById(R.id.HelpAbout);
   btnHelpAbout.setOnClickListener(this);
   this.getView().findViewById(R.id.prefs).setOnClickListener(this);
   mLayout = (DepthLinearLayout) getView().findViewById(R.id.main_linear_layout);
   mLayout.getBackground().setDither(true);
   Activity activity = getActivity();
   mSensorManager = (SensorManager) activity.getSystemService(Context.SENSOR_SERVICE);
   mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
   display =
       ((WindowManager) activity.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
 };