title: Show tiles while initializing map
body: <p>I am just learning to use the Skobbler SDK. The app "GPS Navigation &amp; MAps Scout" by Telenav is showing tiles while the map is loading. </p>
  
  <p>I am displaying the map in my app by using the SKMapViewHolder:</p>
  
  <p><a href="http://developer.skobbler.com/getting-started/android" rel="nofollow">http://developer.skobbler.com/getting-started/android</a></p>
  
  <p>But while the map is loading I've got a black screen. That doesn't look satisfying. I am using two Activities. The MainActivity initializes the library and the map. After initializing the map in <code>onMapTexturesPrepared()</code> I start an Intent which calls the MapActivity. There <code>onSurfaceCreated()</code> is called as soon as the map surface is created. But til the surface is created I would like to display tiles as it is done in the "GPS Navigation &amp; MAps Scout" app. How to do that?</p>
  
  <p>Regards
  unlimited101</p>