title: Migration to AndroidX - Where is ResultReceiver
body: <p>In which new AndroidX dependency is <code>ResultReceiver</code>?</p>
  
  <p>I have tried <code>androidx.legacy:legacy-support-v4:1.0.0-alpha1</code>, assuming that it might be under <code>v4</code> due to its previous dependency <code>android.support.v4.os.ResultReceiver</code>.</p>
  
  <p>I have also tried these:</p>
  
  <pre><code>implementation 'androidx.core:core:1.0.0-alpha3'
  implementation 'androidx.legacy:legacy-support-v13:1.0.0-alpha3'
  </code></pre>
  
  <p>I assume there must be a smarter way of finding out the new dependencies?</p>
  
  <p>Source: <a href="https://developer.android.com/topic/libraries/support-library/refactor" rel="nofollow noreferrer">Migrating to AndroidX</a> </p>
  
  <p>Edit, searching the developer API...</p>
  
  <h1>TraceCompat</h1>
  
  <p><a href="https://i.stack.imgur.com/Ri4CJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ri4CJ.png" alt="TraceCompat Example"></a></p>
  
  <h1>ReceiverResult</h1>
  
  <p><a href="https://i.stack.imgur.com/mTkOe.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mTkOe.png" alt="ResultReceiver Example"></a></p>
  
  <p>Can it be that it isn't in the new system?</p>