//inside drawable/round_corners.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
    <!-- view background color -->
    <solid
        android:color="@android:color/transparent" >
    </solid>
    <!-- view border color and width -->
    <stroke
        android:width="1dp"
        android:color="#828a99" >
    </stroke>
    <!-- The radius makes the corners rounded -->
    <corners
        android:radius="5dp"   >
    </corners>
</shape>
//inside layout/view.xml
<Button
  ...
android:drawableLeft="@drawable/your_icon"
                    android:textColor="#ffffff"
  android:background="@drawable/round_corners"
/>