title: React-native - MapViewDirections not showing
body: <p>I'm trying to use MapViewDirections on google map to provide directions but it's not showing up on the map. Any ideas? </p>
  
  <pre><code>constructor(props) {
      this.state = {
       {.....}
      coordinates: [
        {
        latitude: 37.3317876,
        longitude: -122.0054812,
      },
      {
        latitude: 37.771707,
        longitude: -122.4053769,
  &lt;MapView 
    style={styles.map}
    region ={{
      latitude:this.state.latitude,
      longitude:this.state.longitude,
      latitudeDelta: 0.1,
      longitudeDelta: 0.1,
    }}
  &gt;
    &lt;MapViewDirections
      origin={this.state.coordinates[0]}
      destination={this.state.coordinates[1]}
      apikey={apikey}
      strokeWidth={3}
      strokeColor="hotpink"
    /&gt;
  &lt;/MapView&gt;
  </code></pre>