How to show half item in scrollview which indicate more products in scrollview.

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http://stackoverflow.com – I used Horizontal scroll view in which I add 'Child View'. But on HZ scroll view I want to arrange child some think like, whole screen will show 3.5 child at a time or 4.5 , 5.5 depends on screen size. The half of child indicate there is more child on scroller. For that I used different dimensions for child view depends on density. But still their is some device which show whole child at the end of screen. So how I can mange this on scroll view. Please guide me in right direction. Thanks in advance. (HowTos)