title: How do I get variables from Android Manifest in Flutter?
body: <p>I want to use the API key for the Google Maps API in my package, assuming it's present in the AndroidManifest file (and the iOS equivalent). I see that if you use the <code>google_maps_flutter</code> package, you never have to pass the API key to the <code>GoogleMap</code> widget. Currently, I'm passing the API Key as an attribute to every widget I use, like this:</p>
  
  <p><code>// The class receives the API key through a property called apiKey
  SearchPlaceWidget(apiKey: YOUR_API_KEY);
  </code></p>
  
  <p>And I'd like something like this:</p>
  
  <p><code>// The class will get the API key directly from the AndroidManifest file
  SeachPlaceWidget()
  </code></p>