Android layout border with rounded corners

Create the file layout_border.xml in your drawables directory and put in the following content.

layout_border.xml

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF"/>
    <stroke android:width="3dip" android:color="#B1BCBE" />
    <corners android:radius="10dip"/>
    <padding android:left="0dip" android:top="0dip" android:right="0dip" android:bottom="0dip" />
</shape>

Implementation
you have to call the above xml in your border property of your (Relative or Linear or etc.,) layout:

android:background="@drawable/layout_border"