public void onSensorChanged(SensorEvent event){
    	if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER){
    		float[] values = event.values;
    		
    		float posXn = posX - values[0]*10;
    		float posYn = posY + values[1]*10;
    		float accelationSquareRoot = (values[0] + values[1])*(values[0] + values[1]);
    		
    		moveTo(posX, posY, posXn, posYn);
    	}
	}
	
	public void moveTo(float x, float y, float xn, float yn){
		anim.cancel();
		anim = new TranslateAnimation(x, xn, y, yn);
		anim.setDuration(50);
		anim.setFillAfter(true);							
		image.startAnimation(anim);
		image.invalidate();	
		posX = xn;
		posY = yn;
	}