Hello,
I am extending the Android JetPack Navigation Library with new tags. I see
that the tags and attributes are declared in "values/attr.xml" in the
navigation-common library. Here is a snippet:
<resources>
<declare-styleable name="Navigator">
<attr name="android:id"/>
<attr name="android:label" />
</declare-styleable>
<declare-styleable name="NavGraphNavigator">
<attr name="startDestination" format="reference" />
<attr name="accessPolicy" format="enum">
<enum name="ALL" value="49"/>
<enum name="PARTNER" value="50"/>
<enum name="PRIVATE" value="51"/>
</attr>
</declare-styleable>
<declare-styleable name="NavArgument">
<attr name="android:name" />
<attr name="android:defaultValue" />
<attr name="nullable" format="boolean"/>
<attr name="argType" format="string"/>
<attr name="src" format="string|reference"/>
</declare-styleable>
<declare-styleable name="NavDeepLink">
<attr name="uri" format="string" />
<attr name="android:autoVerify" />
</declare-styleable>
<declare-styleable name="NavAction">
<attr name="android:id" />
<attr name="destination" format="reference" />
<attr name="launchSingleTop" format="boolean" />
<attr name="popUpTo" format="reference" />
<attr name="popUpToInclusive" format="boolean" />
<attr name="enterAnim" format="reference" />
<attr name="exitAnim" format="reference" />
<attr name="popEnterAnim" format="reference" />
<attr name="popExitAnim" format="reference" />
<!-- added by me>
<attr name="widgetOn" format="reference" />
<attr name="gesture" format="enum">
<enum name="click" value="0"/>
</attr>
</declare-styleable>
<!-- added by me>
<declare-styleable name="NavWidget">
<attr name="wid" format = "reference"/>
<attr name="value" format ="string|reference" />
</declare-styleable>
</resources>
The problem is that when I access a newly added attribute in my app like the
attribute "gesture" in <action> it works fine. However, if I create a tag
<widget>,
I get a Lint warning saying the tag is not recognized. I want to know how to
create a new tag for a naviagtion graph. I don't want to create a destination
for which
I will have to set the @Navigation.name(). But for a new tag that is not a
destination what do I have to do? I see that <action> works fine and it is
declared as a style with
the name "NavAction". Then why doesn't <widget> work? I have declared a
"NavWidget" style.
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