Adds list dividers between children in a linear layout. showDividers takes a set of flags (ex: you can specify beginning|middle|end to get dividers at the start of the layout, through the layout, and at the end of the layout. API 11+ http://developer.android.com/reference/android/widget/LinearLayout.html#setShowDividers(int)

gistfile1.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:showDividers="middle"
    android:divider="?android:listDivider"
    android:dividerPadding="16dp">
</LinearLayout>