title: Android: How to set icon in title bar of Dialog activity?
body: <p>I declared a dialog activity in my Manifest as follows:</p>
  
  <pre><code>&lt;activity android:name=".myDialog"
                android:label="@string/title_dlg"
                android:icon="@android:drawable/ic_dialog_alert"
                android:exported="false"
                android:excludeFromRecents="true"
                android:theme="@android:style/Theme.Dialog"&gt;
  </code></pre>
  
  <p>However, only the title's text appears in the title bar and the icon appears to be ignored.
  Is there a way to also show the icon in the title bar?</p>