How to set background for all activities?
<p>How to set background for all activities in adnroid application and keep it's aspect ratio?</p>

<p>I am using <code>android:windowBackground</code> in style, but I don't know, how to keep aspect ratio for my background image.</p>

<p>Is there only way to add <code>ImageView</code> with background for all activities manually?</p>