// check for network
if(!Titanium.Network.networkType == Titanium.Network.NETWORK_NONE){
     var alertDialog = Titanium.UI.createAlertDialog({
              title: 'WARNING!',
              message: 'Your device is not online.',
              buttonNames: ['OK']
            });
            alertDialog.show();
}

8 Answers

• Accepted Answer

  You got it backward
  if(Titanium.Network.networkType == Titanium.Network.NETWORK_NONE){
  // that's no network connectivity.
  }

  if(Titanium.Network.networkType != Titanium.Network.NETWORK_NONE){
  anything but no connectivity
  }

• I use this:

  function check_network() {
      return Titanium.Network.online;
  }
  

  and works even in simulator ( I cut the airport )

• I've always just loaded it onto my device and went in airport mode after the sync.

  I'd love to know if it's possible in the simulator.

• Actually now it is showing the alertDialog when I am connected to a network.

  Any suggestions?

• Tamas, I replaced your code with mine.

  I am not getting an alert pop-up with your code, should I be seeing an alert that tells me I am not connected to a network? Thanks

• Tamas, I replaced your code with mine.

  I am not getting an alert pop-up with your code, should I be seeing an alert that tells me I am not connected to a network? Thanks

• Thanks Daniel, I found the fix with your solution.

  
  // check for network
  if(Titanium.Network.networkType == Titanium.Network.NETWORK_NONE){
       var alertDialog = Titanium.UI.createAlertDialog({
                title: 'WARNING!',
                message: 'Your device is not online.',
                buttonNames: ['OK']
              });
              alertDialog.show();
  }
  

• Thanks guys, added a new post here:
  http://www.learningtitanium.com/snippets/how-to-check-for-a-internet-connection.html