title: Flutter firebase-admob check if rewarded video is loading
body: <p>Using flutter and this plugin (<a href="https://pub.dartlang.org/packages/firebase_admob" rel="noreferrer">https://pub.dartlang.org/packages/firebase_admob</a>),</p>
  
  <p><strong>How can I check if the Rewarded video is load?</strong></p>
  
  <p>I received this Exception :</p>
  
  <pre><code>PlatformException(ad_not_loaded, show failed for rewarded video, no ad was loaded, null)
  </code></pre>
  
  <p>but i can't capture it.</p>
  
  <p>Thank you.</p>