View pager parallax transformation effect

fragment_layout.xml

<android.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ImageView
            android:id="@+id/image"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:adjustViewBounds="true"
            android:contentDescription="@string/description_image"
            android:scaleType="centerCrop" />

    </android.support.design.widget.CoordinatorLayout>

MainActivity.java

package com.voidloop.peepscreen.lockscreen;

import android.support.v7.app.AppCompatActivity;
import android.support.v4.view.ViewPager;

public class LockscreenActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    	super.onCreate(savedInstanceState);
    	setContentView(R.layout.activity_main);
     
      	ViewPager viewPager = view.findViewById(R.id.viewpager);
        viewPager.setPageTransformer(false, new PageTransformer());
    }
}

PageTransformer.java

package com.voidloop.peepscreen.lockscreen;

import android.support.annotation.NonNull;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.widget.ImageView;

import com.voidloop.peepscreen.R;

/*
 * Created by ameh on 13/10/2017.
 */

public class PageTransformer implements ViewPager.PageTransformer {

    @Override
    public void transformPage(@NonNull View page, float position) {
        int pageWidth = page.getWidth();

        ImageView image = page.findViewById(R.id.image);
        image.setTranslationX(-position * (pageWidth / 2));
    }
}