title: does not recognize me getRef (position) is onBindViewHolder working with Firebase
body: <p>I try to show a detail of the list but getref () does not recognize me,I want to get the key to go to another activity, help please, I'm new.</p>
  
  <p>this is a class is not an activity</p>
  
  <p><a href="https://i.stack.imgur.com/TlXUe.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TlXUe.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/kRthM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kRthM.png" alt="I use this code in an activity and it works very well"></a></p>