title: Will the notification channel importance be overriden by individual notification importance?
body: <p>The question is for Android O and above. </p>
  
  <p>For example, I created a notification channel called "default" and set it <code>IMPORTANCE_DEFAULT</code>. Then I've created a notification, added it to the channel and put <code>IMPORTANCE_HIGH</code> in its builder. What will be the final priority of the notification? </p>
  
  <p>I didn't find the answer in docs, they say that individual ones are required to support older versions:</p>
  
  <blockquote>
    <p>To support devices running Android 7.1 (API level 25) or lower, you
    must also call setPriority() for each notification, using a priority
    constant from the NotificationCompat class.</p>
  </blockquote>
  
  <p><a href="https://developer.android.com/training/notify-user/channels#importance" rel="noreferrer">https://developer.android.com/training/notify-user/channels#importance</a></p>