Just a raw guess here. The line splitter can probably be achieved by the divider property like so.
<ListView
android:id="@+id/left_drawer"
android:layout_width="250dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@drawable/gradientshape" <!--thats what im talking about-->
android:dividerHeight="0.5dp" />
Where gradientshape must be a gradient xml file like so
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<gradient
android:startColor="@color/dark_black" <!--use whatever colors you like-->
android:endColor="@color/light_grey"
android:type="linear"
android:angle="270" /> </shape>
EDIT: Just looked at the foursquare resources the coloring and line shadows are actually achieved by a 9 patch image