title: Navigation Architecture Component - Detail View with CollapsingToolbar
body: <p>The proposed practise for the new navigation components were presented at I/O with the following template and proposed philosophy:</p>
  
  <ol>
  <li>One Activity for an App</li>
  <li>Activity contains Toolbar and Bottom Navigation Bar </li>
  </ol>
  
  <p>A typical app often has a detail view with a CollapsingToolbar in it. How would one build that under that architecture?</p>
  
  <ul>
  <li>Move Toolbar to each Fragment XML?</li>
  <li>Implement the collapsing toolbar programmatically?</li>
  <li>Move the detail fragment to its own activity (it may use its own deeplink anyway) and 'break' the philosophy?</li>
  </ul>