title: send Messages to service without binding it
body: <p>i have created one service by extending <code>Service</code> in android and i am sending <code>Message</code> to service using <code>Messenger</code> and <code>Handler</code>.</p>
  
  <p>But the issue (which is a common behavior though) is whenever i have to send message to Service i have to <code>bind</code> it and when i go out of activity i have to <code>unbind</code> it which eventually destroys the service itself.</p>
  
  <p>i can keep running service in background by fringing <code>startService</code> method but is there any way to send Messages to service without using <code>bind</code> as i don't want to destroy the service when i go out of activity.</p>