title: How to simulate total network loss in Android Emulator
body: <p>I'm trying to write an application that needs to know when there is no IP network connection available. I am using the android.net.conn.CONNECTIVITY_CHANGE broadcast event along with ConnectivityManager to react to the changes in state to achieve this, but I'm having problems testing my set up in the emulator.</p>
  
  <p>I have tried both flight mode and pressing F8 to disable the "Cellular Network" but even with both of these engaged the application still "sees" the underlying network.</p>
  
  <p>Has anybody managed to find a way to simulate a total lack of network access?</p>