Custom attributes for different attribute domain, using the same attribute name, it will throw an error:
../attrs.xml: Error: Found item Attr/rightTextColor more than one time
<declare-styleable name="s1">
<attr name="rightTextColor" format="color"/>
</declare-styleable>
<declare-styleable name="s2">
<attr name="rightTextColor" format="color"/>
</declare-styleable>
Resolution:
The property is defined in the external, internal only declarative referential.
<attr name="rightTextColor" format="color" />
<declare-styleable name="s1">
<attr name="rightTextColor"/>
</declare-styleable>
<declare-styleable name="s2">
<attr name="rightTextColor"/>
</declare-styleable>
