Cleaning Up App.EventListeners on restart of App

[Jeff Bonnes]

I'm working with an App in TiShadow that has some Global event listeners. [Ti.App.addEventListeners].  I've created a 'wrapping' function to try to remove all the listeners on App startup if using TiShadow, but I'm not having much luck. They keep getting 're-regsitered' every time the App reruns and never removed.   Hence, they are firing multiple times. Is there a best practice for this?

listeners.js:

var globalListeners = [];

exports.registerGlobalListener = function(evt, _function) {

globalListeners.push({

evt : evt,

func : _function

});

Ti.App.addEventListener(evt, _function);

};

exports.clearAllListeners = function() {

Ti.API.info('clearing all global listeners');  // <- This never runs...

_.each(globalListeners, function(listener) {

Ti.App.removeEventListener(listener.evt, listener.func);

});

globalListeners = [];

};

//Code

listeners.registerGlobalListener('resume', function() {

 // Do Something

});

app.js

// Shim for TiShadow

try {

Ti.API.info("Running in TiShadow");

exports.close = function() {

listeners.clearAllListeners();

tabGroup.close();

};

} catch (e) {

Ti.API.info("Running stand-alone");

}

[David Bankier]

Hi Jeff,

(I know I sent this to you directly, but I'm posting here again on the group for others.)

The latest version 1.3.2 does all this for you. It tracks and clears all app wide listeners between launches.
Here is the commit that added it: https://github.com/dbankier/TiShadow/commit/e2f76a2bceeec3a054a3b0c0e260681d8b409aa9

David

[Jeff Bonnes]

Thanks David.  I was still running 1.2.1 - I'll test this on 1.3.2.

[Alberto Marcone]

This was very helpful, thank you.

[Ian Duggan]

Is there something similar for modules? I'm seeing login/logout handlers on the Facebook module stick around in 2.1.1. I presume this is because the listeners are attached to binary module and thus not seen by this code? Is there any way to register listeners with tishadow that should be unregistered on a new launch?

--Ian

[David Bankier]

Hi Ian,

If you need to cleanup anything else add a "close" listener to your base window and do the clean up there. All windows are closed between runs to the "close" event will be fired.

David