title: ProgressBar working on emulator and not on phones
body: <p>I've got this code:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_height="wrap_content"
  android:layout_width="56dp"
  android:minWidth="56dp"&gt;
  &lt;ProgressBar android:layout_width="32dp"
      android:layout_height="32dp"
      android:layout_gravity="center"/&gt;
  </code></pre>
  
  <p></p>
  
  <p>The spinning progressbar runs fine when i run my application in Droid4X emulator, but it doesn't show any spinning progressbar on my phone. Tried another phone too, no progressbar. Can you help me finding my problem? Thanks</p>
  
  <p>To be precise it works on every API except 23.
  To be even more precise, it works if i put</p>
  
  <pre><code>        style="@android:style/Widget.ProgressBar.Small"
  </code></pre>