android circular gallery?

I am a newbie to android development.Now i would like to do gallery view as circular like image as below.The things is that i want to enlarge the center image when user scroll from left to right and right to left. Is there any tutorials for that ?

what I want is the image that's been swiped need to be enlarged while it's at the center. I thought I could do it with Gallery. but the example from the android developer is not the one I want. :(