How to disable Gallery center-locked

[hbblhhh]

Hi everybody,

I am so glad I can be the one who join Android`s big family.
Obviously, I am still new to Android.
I am finding a way to display horizontal and circular photos, but I
found ListView and GridView, they all cannot meet the requirement,
they only can display them Vertical.

Now, I turn to try Gallery this component, but I hope to disable
the auto center-locked, just like scrolling ListView. Can you kindly
to guide me how to implement this, any suggestion is appreciated,
thanks in advance~