Memory leak when using app level event to update a TableView

I have a TableView I want to update when an item is added to the database. Using app level events for the TableView to be notified causes a memory leak.

I remove the event listener when the window closes, but this doesn't help.

This is a much-discussed issue, and is even covered in a CodeStrong session, but I have not seen a solution or workaround. What can be done to prevent the memory leak? Is there a better solution for a TableView to be reloaded based on an event?

var listener = function(e) {
     // reload tableview
     ...
     <snip>
     ...
     tableView.setData(data);
};
 
Ti.App.addEventListener('database_event', listener);
 
win.addEventListener('close', function(e) {
     Ti.App.removeEventListener('database_event', listener);
});

Hi Josh. I think the problem is not in app-level events (although, IMHO you should avoid using them in most cases), the problem is that "listener" is a global variable holding function reference (that is ... event listener function). So, when you remove event listener, that function still exists because it's referenced by "listener" global variable, therefore table view component won't be garbage collected because "tableView" variable still holds reference to it. Try to set "listener" to "null" after you remove app-level event to see if that solves the issue.