title: react-native - MapView simple example
body: <p>I am trying to create the most simple example for the MapView component.</p>
  
  <pre><code>render() {
      return (
        &lt;MapView style={{
          height: 200,
          width: 200
        }}/&gt;
      )
    }
  </code></pre>
  
  <p>I have no errors but the Map does not appear. What I get (on Android) is the following:</p>
  
  <p><a href="https://i.stack.imgur.com/S8Osl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/S8Osl.png" alt="screen shot"></a>
  I don't see in the documentation any information relative to the initialization of the map.</p>
  
  <p>Any help or clue would be welcome.
  Thanks, Paul</p>