title: Implement Bluetooth Connection into Service or Application Class without losing connection into a Device
body: <p>i need some help, can you explain to me how can i implement the Bluetooth Connection from my Application into my Mini Thermal Printer Device. </p>
  
  <p>The scenario is like this. I already connect my application into device but when the Activity destroyed, the connection also disconnected. Yes, i am aware that when the activity destroyed all the task within the activity is affected.
  The device has it's own SDK. and that what i am using now.</p>
  
  <p>That's why, i really need your help to get over on this problem. 
  There are some documentation about this but it is not all clear for me. </p>
  
  <p>if you have a sample project, can i use it as a guide. that would be appreciated. </p>
  
  <p>Sorry for the English Grammar.</p>
  
  <p>Please help me on this. Thanks in Advance :) </p>