Using build types in Gradle libraries to run same app that uses ContentProvider on one device

Question

I'm having the issue where my Android Content Provider is not being recognized in a separate build variant from an Android library. I've followed most of the ideas in: Using build types in Gradle to run same app that uses ContentProvider on one device

I also followed: http://www.kevinrschultz.com/blog/2014/03/23/using-android-content-providers-with-multiple-package-names/

When I try running the app, the parent application tries to import a java class from the FYC library listed in src/main/AndroidManifest.xml and doesn't recognize the class because of the .qa package name?

My library FYC.gradle file looks like this:

...
android
{
    ...
    productFlavors
    {
        prod {
           packageName "com.company.android"
        }

        qa {
           packageName "com.company.android.qa"
        }
    }
}

I commented out the content provider in main: src/main/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.company.android.fyc"
    android:versionCode="1"
    android:versionName="1.0" >

<!--<provider-->
            <!--android:name=".models.listing.ListingProvider"-->
            <!--android:authorities="com.company.android.fyc.models.listing.listingprovider"-->
            <!--android:exported="false" />-->

</manifest>

src/prod/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.company.android.fyc"
    android:versionCode="1"
    android:versionName="1">

    <application>

        <provider
            android:name=".models.listing.ListingProvider"
            android:authorities="com.company.android.fyc.models.listing.listingprovider"
            android:exported="false" />

    </application>
</manifest>

src/qa/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.company.android.fyc"
    android:versionCode="1"
    android:versionName="1">

    <application>

        <provider
        android:name=".models.listing.ListingProvider"
        android:authorities="com.company.android.qa.fyc.models.listing.listingprovider"
        android:exported="false" />

    </application>
</manifest>

I tried another option and tried using a variable for the package name, but Gradle gave me an error that it didn't recognize $?

In AndroidManifest.xml, you can use ${packageName} like this:

    <!--<provider-->
        <!--android:name=".models.listing.ListingProvider"-->
        <!--android:authorities="${packageName}.fyc.models.listing.listingprovider"-->
        <!--android:exported="false" />-->

Does anyone have another recent work around for this issue? Thanks!