OcrDemo/app/src/main/res/drawable/selector_copy.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_pressed="true">
        <shape
            android:shape="rectangle">
            <solid android:color="@color/blue_copy" />
            <corners android:radius="@dimen/margin_dialog" />
        </shape>
    </item>

    <item>
        <shape
            android:shape="rectangle">
            <solid android:color="@color/colorPrimary" />
            <corners android:radius="@dimen/margin_dialog" />
        </shape>
    </item>
</selector>