title: Item showing only on click on BottomNavigationView
body: <p>So I want a navigation bar at the bottom of the screen with 4 items but for some reason only the first one is showing and the others appear only when i click them.</p>
  
  <pre><code>&lt;com.google.android.material.bottomnavigation.BottomNavigationView
      android:id="@+id/bottom_navigation"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_gravity="bottom"
      android:background="@color/white"
      app:itemTextColor="@color/black"
      app:menu="@menu/navigation_bar_bottom_menu" /&gt;
  </code></pre>
  
  <p>My menu: </p>
  
  <pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android"&gt;
  &lt;item
      android:id="@+id/nav_home"
      android:title="@string/navigation_bar_home_text" /&gt;
  
  &lt;item
      android:id="@+id/nav_inbox"
      android:title="@string/navigation_bar_inbox_text" /&gt;
  
  &lt;item
      android:id="@+id/nav_notes"
      android:title="@string/navigation_bar_notes_text" /&gt;
  
  &lt;item
      android:id="@+id/nav_profile"
      android:title="@string/navigation_bar_profile_text" /&gt;
  
  &lt;/menu&gt;
  </code></pre>
  
  <p>The bar is displayed like this just with the first item showing:</p>
  
  <p><a href="https://i.stack.imgur.com/DQ9YN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DQ9YN.png" alt="enter image description here"></a></p>