app/src/main/res/drawable/list_divider.xml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <shape xmlns:android="http://schemas.android.com/apk/res/android">
   3     <gradient
   4         android:color="@color/divider"
   5         android:type="linear"
   6         android:startColor="@android:color/white"
   7         android:centerColor="@color/colorPrimary"
   8         android:endColor="@android:color/white"/>
   9     <size android:height="2dp" />
  10 </shape>