Custom Attributes in Android
13,184
Solution 1
If you are going to use an attr in more than one place then put it in the root element inside the <resources>
element like the following :
<resources>
<attr name="tag" format="string" />
<declare-styleable name="Spinner">
<attr name="tag" />
</declare-styleable>
<declare-styleable name="EditText">
<attr name="tag" />
</declare-styleable>
</resources>
Now you can use the tag attribute in anywhere you want inside this xml file .
Hope That Helps.
Solution 2
See if my detailed answer about custom attributes helps: Defining custom attrs
Author by
Arun
Updated on June 15, 2022Comments
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Arun almost 2 years
I'm trying to create a custom attribute called Tag for all editable elements. I added the following to attrs.xml
<declare-styleable name="Spinner"> <attr name="tag" format="string" /> </declare-styleable> <declare-styleable name="EditText"> <attr name="tag" format="string" /> </declare-styleable>
I get an error saying "Attribute tag has already been defined" for the EditText. Is it not possible to create a custom attribute of the same name on different elements?