rounded_button.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <shape
       android:shape="rectangle" >
        <corners
            android:bottomLeftRadius="20dp"
            android:bottomRightRadius="20dp"
            android:radius="10dp"
            android:topLeftRadius="20dp"
            android:topRightRadius="20dp"
            />
        <solid
            android:color="#1792E6"/>
    </shape>
</item>

    <item
        android:state_pressed="true">
        <shape
            android:shape="rectangle" >
            <corners
                android:bottomLeftRadius="20dp"
                android:bottomRightRadius="20dp"
                android:radius="10dp"
                android:topLeftRadius="20dp"
                android:topRightRadius="20dp"
                />
            <solid
                android:color="#1792E6"/>
        </shape>
    </item>
</selector>