title: Define custom Logo for ActionBar (different than Logo) in XML?
body: <p>I want to make a Actionbar_style.xml for my app and I would like to use a logo, different than my app logo / icon.</p>
  
  <p>How to change it programmatcially is clear: <a href="https://stackoverflow.com/questions/8233855/change-logo-that-appears-in-android-actionbar-using-program">Change logo that appears in Android ActionBar programatically</a>
  But like this I would need to code this into each activity.</p>
  
  <p>Is there a xml tag to define a custom Actionbarlogo in xml already?</p>
  
  <p>my Customstyles.xml</p>
  
  <pre><code>&lt;style name="CustomActionBar0" parent="android:style/Widget.Holo.Light.ActionBar"&gt;
      &lt;item name="android:background"&gt;@drawable/action_bg0&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>android styles.xml seems not to have it...</p>
  
  <pre><code>&lt;style name="Widget.ActionBar"&gt;
      &lt;item name="android:background"&gt;@android:drawable/action_bar_background&lt;/item&gt;
      &lt;item name="android:displayOptions"&gt;useLogo|showHome|showTitle&lt;/item&gt;
      &lt;item name="android:divider"&gt;@android:drawable/action_bar_divider&lt;/item&gt;
      &lt;item name="android:height"&gt;?android:attr/actionBarSize&lt;/item&gt;
      &lt;item name="android:paddingLeft"&gt;0dip&lt;/item&gt;
      &lt;item name="android:paddingTop"&gt;0dip&lt;/item&gt;
      &lt;item name="android:paddingRight"&gt;0dip&lt;/item&gt;
      &lt;item name="android:paddingBottom"&gt;0dip&lt;/item&gt;
      &lt;item name="android:titleTextStyle"&gt;@android:style/TextAppearance.Widget.ActionBar.Title&lt;/item&gt;
      &lt;item name="android:subtitleTextStyle"&gt;@android:style/TextAppearance.Widget.ActionBar.Subtitle&lt;/item&gt;
      &lt;item name="android:progressBarStyle"&gt;@android:style/Widget.ProgressBar.Horizontal&lt;/item&gt;
      &lt;item name="android:indeterminateProgressStyle"&gt;@android:style/Widget.ProgressBar.Small&lt;/item&gt;
      &lt;item name="android:homeLayout"&gt;@android:layout/action_bar_home&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>