title: The same Android service instance for two apps
body: <p>I have two Android apps that uses exactly the same library. This library defines one Android service.
  Firstly, I bind the service in the first app - it's ok.
  Secondly, I bind the service in the second app and in the result second service's instance is raised and after it two services are running (one for first app and one for second app).</p>
  
  <p>I'd like to have only one instance of service, ie. when first app bind service - the service starts working. Now, when second app bind service I'd like to use this one that is running and have only one service instance.</p>