title: iOS - wakeup application when a/any bluetooth device is connected
body: <p>Is there any way to "wake-up" (relaunch) an iOS application (a background task actually, not to show the application) whenver a bluetooth device is connected?</p>
  
  <p>For example, the iOS OS kills the application due to memory lack. Then a couple of hours later the user connects his bluetooth device. Can the iOS notify my application that the bluetooth device is connected and run a background task?</p>
  
  <p>In Android I see that I can create a BroadcastReceiver that is registered for when a bluetooth device is connected. I need something equivalent to that for iOS.</p>