gistfile1.java

public class ParallaxPageTransformer implements ViewPager.PageTransformer {
	
		public void transformPage(View view, float position) {
		
			int pageWidth = view.getWidth();
			

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

		        } else if (position <= 1) { // [-1,1]
		            
		        	dummyImageView.setTranslationX(-position * (pageWidth / 2)); //Half the normal speed
		            
		        } else { // (1,+Infinity]
		            // This page is way off-screen to the right.
		            view.setAlpha(1);
				}
		    

		}
	}