library/src/main/res/values/attrs.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <declare-styleable name="SubsamplingScaleImageView">
        <attr name="src" format="reference"/>
        <attr name="assetName" format="string"/>
        <attr name="panEnabled" format="boolean"/>
        <attr name="zoomEnabled" format="boolean"/>
        <attr name="quickScaleEnabled" format="boolean"/>
        <attr name="tileBackgroundColor" format="color"/>
    </declare-styleable>

</resources>