title: Specifying within Xcode dart main entry point
body: <p>Supporting multiple environments my Flutter app contains multiple main entry point files:</p>
  
  <pre><code>main_prod.dart
  main_dev.dart
  main_staging.dart
  </code></pre>
  
  <p>Within each file importing the appropriate config file:</p>
  
  <pre><code>void main() =&gt; runApp(
      new ConfigWrapper(config: Config.fromJson(config), child: new PlatterzApp()));
  </code></pre>
  
  <p>Building android APK, I can specify the <strong>main</strong> entry point using command:</p>
  
  <pre><code>flutter build apk --split-per-abi -t lib/config/main_prod.dart
  </code></pre>
  
  <p>I am searching for a way of archiving this using <strong>Xcode</strong> for iOS app (multiple targets)</p>