Android Suppress UnusedAttribute Warning For Specific Attributes

android, android-lint

Solution

For that you have configure lint via `lint.xml` and use regexp see docs for details. Let's go step by step.

Firstly, specify that you will use file configuration. Something like that in your `build.gradle`

lintOptions {
    lintConfig file("../config/lint/lint.xml")
}

In your case path will be different.

Secondly, use regexp to exclude specific attributes. Here is example of `lint.xml`

<?xml version="1.0" encoding="UTF-8"?>
<lint>
    <issue id="UnusedAttribute">
        <ignore regexp="elevation"/>
        <ignore regexp="breakStrategy"/>
    </issue>
</lint>

Another way to do it is to add `tools:targetApi="n"` for each usage. Where "n" is version where attribute first appeared.

Problem

I have a few linter warnings for "UnusedAttribute" throughout my project. - Attribute `elevation` is only used in API level 21 and higher (current min is 16) - Attribute `breakStrategy` is only used in API level 23 and higher (current min is 16) - Attribute `hyphenationFrequency` is only used in API level 23 and higher (current min is 16) - Attribute `letterSpacing` is only used in API level 21 and higher (current min is 16) I know that I can suppress the warning for ALL of the attributes. ``` tools:ignore="UnusedAttribute" ``` or ``` lintOptions { disable 'UnusedAttribute' } ``` However, I only want to suppress the warning for specific attributes. I tried to do the following without success. ``` tools:ignore="UnusedAttribute:elevation" ``` or ``` lintOptions { disable 'UnusedAttribute:elevation' } ``` I can't find any mention of this in the docs here, here, here, or here. Is there any way to do this?

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