[AC-2846] Cannot read property '0' of undefined in events.js

GitHub Issue	n/a
Type	Bug
Priority	n/a
Status	Closed
Resolution	Invalid
Resolution Date	2012-02-17T17:03:32.000+0000
Affected Version/s	n/a
Fix Version/s	n/a
Components	Titanium SDK & CLI
Labels	1.8.2, 2.0.0, android, events
Reporter	Justin Toth
Assignee	Mauro Parra-Miranda
Created	2012-02-16T08:09:32.000+0000
Updated	2016-03-08T07:47:47.000+0000

Description

Ever since upgrading to the latest CI builds in 1.8 and 2.0, I've been running into this error:

E/TiJSError(  800): (main) [7511,46846] ----- Titanium Javascript Runtime Error -----
E/TiJSError(  800): (main) [1,46847] - In ti:/events.js:241,23
E/TiJSError(  800): (main) [0,46847] - Message: Uncaught TypeError: Cannot read property '0' of undefined
E/TiJSError(  800): (main) [1,46848] - Source: 					if (list.listener[i] === listener ||
E/V8Exception(  800): Exception occurred at ti:/events.js:241: Uncaught TypeError: Cannot read property '0' of undefined

It has been difficult to reproduce it since it doesn't happen very often so I can't give reproduction code, but it seems to be related to either closing a window or removing an event listener (probably the latter.) I created a pull request to add a null check around this code, which should prevent the issue. Forgive me if I did it wrong, it was my first pull request to Titanium. [https://github.com/appcelerator/titanium_mobile/pull/1443]

Comments

Justin Toth 2012-02-17

This can be closed, the issue was with my management of windows, as I wasn't aware that android:back doesn't fire for non-heavyweight windows.
Mauro Parra-Miranda 2012-02-17

User confirmed that was failing because of the back behavior on light and heavy windows.
Mauro Parra-Miranda 2013-11-24

Invalid issue.

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