lint.xml

<lint>

    <issue id="UnusedAttribute" severity="warning">
        <!-- Ignore the specified issue if the location matched this path -->
        <ignore path="**/AndroidManifest.xml"/>
        <!-- Ignore the specified issue if the message or the location matches the regex -->
        <ignore regexp="networkSecurityConfig"/>
        <!-- path takes precedence over regexp so it's no use adding both -->
        <!--<ignore path="**/AndroidManifest.xml" regexp="networkSecurityConfig"/>-->
    </issue>
    <!-- You can also specify a list of ids -->
    <issue id="UnusedAttribute, MissingTranslation" severity="error"/>
    <!-- Nodes overrides the previous ones. UnusedAttribute will become ignored after this -->
    <issue id="UnusedAttribute, MissingTranslation" severity="ignore"/>
    <!-- "all" is a special id that will be used as a fallback for ids that are not defined elsewhere in the
    XML. Putting it last will not overwrite the issues above. Here, we mark any unspecified issue as fatal -->
    <issue id="all" severity="fatal"/>
    <!-- Any number of additional issue nodes -->
    <issue ...
</lint>