title: Google Maps key in AndroidManifest.xml from google-services.json
body: <p>I have a <code>google-services.json</code> file that contains the API key for, amongst other things, the google maps service.  Google maps requires the following information in the <code>AndroidManifest.xml</code>:</p>
  
  <pre><code>&lt;meta-data
    android:name="com.google.android.geo.API_KEY"
    android:value="KEY_GOES_HERE" /&gt;
  </code></pre>
  
  <p>I can access the information in Java using <code>R.string.google_api_key</code>, as the build process turns the JSON file into resources as per <a href="https://developers.google.com/android/guides/google-services-plugin" rel="noreferrer">https://developers.google.com/android/guides/google-services-plugin</a>, but is there a way to refer to the key inside the manifest file?</p>