Android Sets the corner example while setting the button background

Before you do a button to the button to set a picture as a background, but also to define their own rounded corners, the simplest way is to directly cut the fillet picture as a button on it, but if not how to do it, look at the code:

A shape file with rounded corners is built first:

<?xml version= "1.0" encoding= "Utf-8"?>
<shape xmlns:android= "Http://schemas.android.com/apk/res/android" >
<corners
android:radius= "10DP"/>
<stroke
Android:width= "1DP"
Android:color= "#FF6238"/>
</shape>

Create a list file:

<?xml version= "1.0" encoding= "Utf-8"?>
<layer-list xmlns:android= "Http://schemas.android.com/apk/res/android" >

<item android:drawable= "@mipmap/ic_launcher"/>
<item android:drawable= "@drawable/shape"/>
</layer-list>

Direct reference:

<textview
    android:gravity= "center"
    android:background= "@ Drawable/list "
    android:layout_width=" match_parent "
    android:layout_ height= "50DP"
    android:textsize= "16sp"
    android:textcolor= "#FF0000"
    android:text= "button"/>