title: How to scroll to the bottom of a RecyclerView? scrollToPosition doesn't work
body: <p>I'd like to scroll to the bottom of the RecyclerView list after loading the activity.</p>
  
  <pre><code>GENERIC_MESSAGE_LIST = (ArrayList) intent.getExtras().getParcelableArrayList(ConversationsAdapter.EXTRA_MESSAGE);
  conversationView = (RecyclerView) findViewById(R.id.list_messages);
  conversationView.setHasFixedSize(true);
  conversationViewLayoutManager = new LinearLayoutManager(this);
  conversationView.setLayoutManager(conversationViewLayoutManager);
  conversationViewAdapter = new ConversationAdapter(GENERIC_MESSAGE_LIST, this);
  conversationView.setAdapter(conversationViewAdapter);
  </code></pre>
  
  <p><code>conversationView.scrollTo(...)</code> throws an exception about being not supported in RecyclerView, and <code>conversationView.scrollToPosition(...)</code> doesn't seem to do anything.</p>
  
  <p>After the above block of code, I added</p>
  
  <pre><code>conversationView.scrollToPosition(GENERIC_MESSAGE_LIST.size() + 1)
  </code></pre>
  
  <p>which doesn't work. There are 30 elements in <code>GENERIC_MESSAGE_LIST</code>.</p>