<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<rotate
android:fromDegrees="135"
android:toDegrees="135"
android:pivotX="50%"
android:pivotY="50%" >
<shape
android:shape="line" >
<stroke
android:width="1dip"
android:color="yourcolor" />
</shape>
</rotate>
</item>
</layer-list>