title: using IntentService for MediaPlayer playback
body: <p>Is it reasonable to use an <code>IntentService</code> for background <code>MediaPlayer</code> playback on demand? According to the <a href="http://developer.android.com/guide/components/services.html#ExtendingIntentService">developer's guide</a> an <code>IntentService</code> lasts only as long as it is doing actually work. Considering the resulting overhead of reinitializing the <code>MediaPlayer</code> everytime when I want to play a track again, it seems to be a bad Idea...</p>
  
  <p>So my question is: How big is the actual resulting overhead using this kind of <code>Service</code>. Would it have a perceptable impact on the system's/application's performance? Should I use my own implementation of <code>Service</code> with a dedicated worker thread instead?</p>