Tasharen Entertainment Forum

Support => NGUI 3 Support => Topic started by: capitalj on July 17, 2012, 05:19:33 PM

Title: Removing event listeners
Post by: capitalj on July 17, 2012, 05:19:33 PM

Hi,

I'm wondering whether I need to remove event listeners when a scene has ended, typically I will put in a -= for events in the OnDisable method, but for NGUI events, should I do the same thing:

UIEventListener.Get(myButton).onClick -= UIButtonPressed;

or do these get removed by NGUI?

-JJ

Title: Re: Removing event listeners
Post by: ArenMook on July 17, 2012, 06:35:49 PM

Does your UI persist when the scene unloads? Unless you mark your UI Root as "dont destroy on load", it'll be destroyed, so the removal of callbacks is unnecessary.

Title: Re: Removing event listeners
Post by: capitalj on July 17, 2012, 06:37:09 PM

Awesome thanks, yeah the UI does not persist so looks like I don't have to do anything :)

Title: Re: Removing event listeners
Post by: lbzzbl on July 18, 2012, 09:53:31 AM

followup question:

if such a scenario occurs

currently in scene 1 -> load into scene 2 -> then back to scene 1 after some actions...essentially, scene 1 is my main scene which i will always return to, like a big lobby?

would it be better if i let the UI of scene 1 persists instead of letting it go away?

Title: Re: Removing event listeners
Post by: ArenMook on July 18, 2012, 11:00:18 AM

No need. It's better to let Unity release the unneeded resources.

Title: Re: Removing event listeners
Post by: lbzzbl on July 18, 2012, 12:16:46 PM

thanks.