title: 'canLaunch' is deprecated in Flutter
body: <p>I'v used <a href="https://pub.dev/packages/url_launcher" rel="nofollow noreferrer">url_launcher</a> package.</p>
  <pre><code>String query = Uri.encodeComponent(Utils.getSelectedStoreAddress());
  var appleUrl = 'maps:q=$query';
  var googleUrl = 'https://www.google.com/maps/search/?api=1&amp;query=$query';
  
  _launch(appleUrl);
  _launch(googleUrl);
  
  Future&lt;void&gt; _launch(String url) async {
  await canLaunch(url)
      ? await launch(url)
      : _showSnackBar('could_not_launch_this_app'.tr());
  }
  </code></pre>
  <p>Everything were OK until I get this warning:</p>
  <pre><code>info: 'canLaunch' is deprecated and shouldn't be used. Use canLaunchUrl instead. 
  </code></pre>