Jquery calls not working in $viewContentLoaded of Angular

Unable to call jquery functions in $viewContentLoaded event of Angular controller, here is the code for the same.

$scope.$on('$viewContentLoaded', function() {
    jQuery.growlUI('Growl Notification', 'Saved Succesfully');
    jQuery('#category').tree()
    });

Is any configuration required here?? I tried even noConflict(); var $jq = jQuery.noConflict(); Does it require any other configuration?

Thanks, Abdul