Rotary knob attibutes

attrs.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="RotaryKnobView">
        <attr name="minValue" format="integer" />
        <attr name="maxValue" format="integer" />
        <attr name="initialValue" format="integer" />
        <attr name="knobDrawable" format="reference" />
    </declare-styleable>
</resources>