DepthPageTransformer.java

/*
 * Copyright (c) 2014. Marshal Chen.
 */

package com.marshalchen.common.uimodule.viewpagertransforms;

import android.view.View;

public class DepthPageTransformer extends ABaseTransformer {

	private static final float MIN_SCALE = 0.75f;

	@Override
	protected void onTransform(View view, float position) {
		if (position <= 0f) {
			view.setTranslationX(0f);
			view.setScaleX(1f);
			view.setScaleY(1f);
		} else if (position <= 1f) {
			final float scaleFactor = MIN_SCALE + (1 - MIN_SCALE) * (1 - Math.abs(position));
			view.setAlpha(1 - position);
			view.setPivotY(0.5f * view.getHeight());
			view.setTranslationX(view.getWidth() * -position);
			view.setScaleX(scaleFactor);
			view.setScaleY(scaleFactor);
		}
	}

	@Override
	protected boolean isPagingEnabled() {
		return true;
	}

}