firstVisibleItem, visibleItemCount, totalItemCount do not change even Scroll event happened

Im having a ScrollView which contains a Listview, However even if I scroll the listview, the three parameters in onscroll() method do not change, they remain the same as the initial state.

Here's my layout

Also my code for handling the scroll event,noted the contentlist is the listview not the scrollview.

However as you can see in the logcat, nothing change even if i scroll around and the visible item count should be two only

I wonder if its because of the height of the listview which cause this issue?

Thanks