space-android/res/drawable/btn_round.xml

<?xml version="1.0" encoding="utf-8"?> 
<shape xmlns:android="http://schemas.android.com/apk/res/android" 
        android:shape="rectangle"> 
        <corners android:radius="5dip" />
        <solid android:color="#aac4d2" /> 
        <padding android:left="15dp" android:top="5dp" android:right="15dp" android:bottom="5dp" />
        <stroke android:width="2dip" android:color="#ffffff" />
</shape>