AntiClockSpinTransformation Animation in ViewPager

AntiClockSpinTransformation.java

package example.andrdoitechweb.viewpagertransformer.Transformation;

import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.View;

public class AntiClockSpinTransformation implements ViewPager.PageTransformer {
    @Override
    public void transformPage(View page, float position) {

        page.setTranslationX(-position * page.getWidth());

        if (Math.abs(position) < 0.5){
            page.setVisibility(View.VISIBLE);
            page.setScaleX(1-Math.abs(position));
            page.setScaleY(1-Math.abs(position));
        }
        else if (Math.abs(position) > 0.5){
            page.setVisibility(View.GONE);
        }

        if (position < -1){  // [-Infinity,-1)
            // This page is way off-screen to the left.
            page.setAlpha(0);

        }
        else if (position <= 0){    // [-1,0]
            page.setAlpha(1);
            page.setRotation(360*(1-Math.abs(position)));

        }
        else if (position <= 1){    // (0,1]
            page.setAlpha(1);
            page.setRotation(-360*(1-Math.abs(position)));

        }
        else {  // (1,+Infinity]
            // This page is way off-screen to the right.
            page.setAlpha(0);

        }

    }
}