title: how might I add dummy entries to a listView
body: <p>Does anyone know any simple way to add dummy items to a list view via xml layout? In android studio I can see the dummy items as</p>
  
  <pre><code>Item 1
  Sub Item 1
  
  Item 2
  Sub Item 2
  
  etc
  </code></pre>
  
  <p>but the dummies don't show up on my phone when I run the app. How might I make them show up on the phone as well?</p>
  
  <p>Again, I am precisely looking for a very simple way to make the dummy data visible on the phone as it is in Android Studio. I am working on the layout. I don't want to go create adapters yet.</p>
  
  <p>I already tried</p>
  
  <pre><code>tools:listitem="@android:layout/simple_list_item_2"
  </code></pre>
  
  <p>but it didn't make a difference: the phone is still blank.</p>