<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true"><shape android:shape="rectangle"><solid android:color="@color/sl_color_blue"/><corners android:radius="999dp"/><size android:height="30dp"/></shape></item>
    <item><shape android:shape="rectangle"><solid android:color="#33FFFFFF"/><corners android:radius="999dp"/><size android:height="30dp"/></shape></item>
</selector>
