Samsung Touchwiz lists widget

I want the widget which is used in Samsung Touchwiz UX, in file manager, Music player, and some other apps, that two ListViews are in left and right side of the tablet, and there is a separator in middle of them which can change the widths of the left and right side ListViews when touched.

Where can I get this View, or, is there any suggested way to implement that?

thanks a lot.

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Solution

This is made with Fragments and Fragment Activity! You can start reading Android documentation about "Building a Flexible UI" http://developer.android.com/training/basics/fragments/fragment-ui.html and "Combining Multiple Views Into One" http://developer.android.com/design/patterns/multi-pane-layouts.html#combining-views

It's good practic to always use fragments.