ReboundScaleActivity.java

public class ReboundScaleActivity extends Activity implements View.OnTouchListener, SpringListener {

    private static double TENSION = 800;
    private static double DAMPER = 20; //friction

    private ImageView mImageToAnimate;
    private SpringSystem mSpringSystem;
    private Spring mSpring;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mImageToAnimate = (ImageView) findViewById(R.id.imageView);
        mImageToAnimate.setOnTouchListener(this);

        mSpringSystem = SpringSystem.create();

        mSpring = mSpringSystem.createSpring();
        mSpring.addListener(this);

        SpringConfig config = new SpringConfig(TENSION, DAMPER);
        mSpring.setSpringConfig(config);
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                mSpring.setEndValue(1f);
                return true;
            case MotionEvent.ACTION_UP:
                mSpring.setEndValue(0f);
                return true;
        }

        return false;
    }

    @Override
    public void onSpringUpdate(Spring spring) {
        float value = (float) spring.getCurrentValue();
        float scale = 1f - (value * 0.5f);
        mImageToAnimate.setScaleX(scale);
        mImageToAnimate.setScaleY(scale);
    }

    @Override
    public void onSpringAtRest(Spring spring) {

    }

    @Override
    public void onSpringActivate(Spring spring) {

    }

    @Override
    public void onSpringEndStateChange(Spring spring) {

    }
    
}

Hi, when i use this helper class, when i press widget, thats cause of rotate widget, why?