EXC_BAD_ACCESS might mean many things.
Normally, it means that you release an autorelease object, release too many times, or use a released object.
Here is the way to debug it.
First of all, you need to turn on NSZombieEnabled. To turn it on:
1. you need to go to "Project -> Set Active Executable (...)"
2. Under the tab "Arguments" and in the box "Variables to be set in the environment", Add a new variable named "NSZombieEnabled" with the value "YES"
Now when you get an EXC_BAD_ACCESS, it will tell you what happens.
One of the scenarios is that you will get [CALayer retainCount].
This means that you release an autoreleased view or a view too many times.
Now you can go find out....
I took like 2 hours to find out that I release a view too many times....
Good luck!
