Make widget appear once tracking acquired

[micah]

I'm trying to make widgets appear once initial tracking is acquired.

I tried using the below code but it doesn't seem to work.

$scope.$on('tracking', function()
          {
    $scope.view.wdg['label-2']['visible'] = true;
})

 What service do I need to use to make it work?

[RolandRaytchev]

I would suggest to use some thing like this:

$scope.$on('tracking', function() 
{ //$scope.view.wdg['label-2']['visible'] = true; 
$scope.setWidgetProp('label-2','visible',true);
$scope.$applyAsync();
})

another poinit is to check if the tracking event fired  e.g. via snackbar message on mobile device: 

$scope.$on('tracking', function() 
{ 
$timeout(twx.app.fn.addSnackbarMessage("tracking Event fired","twLogo"),200);
$scope.setWidgetProp('label-2','visible',true);
$scope.$applyAsync();
})