Problems with UINavigationController and growing memory..

erikk · 08-11-2009, 05:31 PM

Hi,

I'm currently at the point where i'm allmost ready to launch my application, which i've developed in the last 4 months...

The application is running smooth and everything goes well..

Anyway, when i launc my app with the Leaks instrument, i found out that the memory keeps on growing with every new viewcontroller that i push (it's inside a UINavigationController)...

I have no experience in using the leaks instrument, so any help may be welcome..

I've allready searched the forum and read some memory management documents, but i can't get it fixed by just releasing some extra objects..

Advice would be very appriciated!

lukeca · 08-11-2009, 05:53 PM

Is Instruments actually detecting any leaks? Also which memory do you see growing, the overall bytes, or the net bytes? As I understand it the overall bytes shows you how much memory has been used the entire time the app has been running, while the net bytes shows the memory being used at that specific moment. So if your net bytes stay pretty constant then you should be ok.

erikk · 08-11-2009, 06:08 PM

Quote:

Originally Posted by lukeca

Is Instruments actually detecting any leaks? Also which memory do you see growing, the overall bytes, or the net bytes? As I understand it the overall bytes shows you how much memory has been used the entire time the app has been running, while the net bytes shows the memory being used at that specific moment. So if your net bytes stay pretty constant then you should be ok.

thanks for your reply..

I checked it, and i think it is the net bytes..

I've upload a screenshot, maybe that says more to you

Yfrog - afbeelding1d

drewag · 08-11-2009, 06:49 PM

Quote:

Originally Posted by erikk

thanks for your reply..

I checked it, and i think it is the net bytes..

I've upload a screenshot, maybe that says more to you

Yfrog - afbeelding1d

How are you pushing on the viewcontrollers? When you push a view controller onto a navigationcontroller it sends a retain message automatically to the view controller so you need to release it once after pushing it on.