public MaterialViewPagerAnimator(MaterialViewPager materialViewPager)
		{
			Settings = materialViewPager.Settings;

			MaterialViewPager = materialViewPager;
			_mHeader = materialViewPager.MaterialViewPagerHeader;
			Context context = _mHeader.Context;

			// initialise the scrollMax to headerHeight, so until the first cell touch the top of the screen
			ScrollMax = Settings.HeaderHeight;
			//save in into dp once
			ScrollMaxDp = Utils.DpToPx(ScrollMax, context);

			//heightMaxScrollToolbar = context.getResources().getDimension(R.dimen.material_viewpager_padding_top);
			Elevation = Utils.DpToPx(4, context);
		}
        public MaterialViewPagerAnimator(MaterialViewPager materialViewPager)
        {
            Settings = materialViewPager.Settings;

            MaterialViewPager = materialViewPager;
            _mHeader          = materialViewPager.MaterialViewPagerHeader;
            Context context = _mHeader.Context;

            // initialise the scrollMax to headerHeight, so until the first cell touch the top of the screen
            ScrollMax = Settings.HeaderHeight;
            //save in into dp once
            ScrollMaxDp = Utils.DpToPx(ScrollMax, context);

            //heightMaxScrollToolbar = context.getResources().getDimension(R.dimen.material_viewpager_padding_top);
            Elevation = Utils.DpToPx(4, context);
        }