I want both my ViewA and ViewB to have the "title" tag. But I can't put this in attrs.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="ViewA">
<attr name="title" format="string" />
</declare-styleable>
<declare-styleable name="ViewB">
<attr name="title" format="string" />
<attr name="max" format="integer" />
</declare-styleable>
</resources>
because of the error Attribute "title" has already been defined. Another question shows this solution:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<attr name="title" format="string" />
<declare-styleable name="ViewB">
<attr name="max" format="integer" />
</declare-styleable>
</resources>
but in that case, R.styleable.ViewA_title and R.styleable.ViewB_title are not generated. I need them for reading the attributes from the AttributeSet using the following code:
TypedArray a=getContext().obtainStyledAttributes( as, R.styleable.ViewA);
String title = a.getString(R.styleable.ViewA_title);
How can I solve this?
The link you have posted does give you the correct answer. This is what it suggests you do:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<attr name="title" format="string" />
<declare-styleable name="ViewA">
<attr name="title" />
</declare-styleable>
<declare-styleable name="ViewB">
<attr name="title" />
<attr name="max" format="integer" />
</declare-styleable>
</resources>
Now, R.styleable.ViewA_titleand R.styleable.ViewB_titleare both accessible.
If you get a chance, read through this answer: Link. Relevant quote:
You can define attributes in the top element or inside of a element. If I'm going to use an attr in more than one place I put it in the root element.
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