Memory-management in iOS Programming - iphone

Question

I have a little problem with memory management in my iOS App. I load an XML and set all Values in this XML to Spezific Objects. Now my problem is when i reload the XML every 15 - 20 reloads of this XML my app Crash on Parsing here is a sample of my parser.
EDIT: Here ist the ERROR when NSZombie is Enabled if NSZombie is disabled I didn't get an ERROR message.
-[CFNumber retain]: message sent to deallocated instance
thanks for help.
EDIT:
the beginning of my Code:
- (id)init
{
self = [super init];
if (self) {
TheObjects *theObjects = [[TheObjects alloc] init];
[self parse];
}
return self;
}
- (void) reload{
reload = YES;
TheObjects *theTmpObjects = [[TheObjects alloc] init];
[self parse];
}
- (void)parse{
for (id xmlOBject in xmlObjects){
MyObject *object = [[MyObject alloc] init];
object.number1 = [NSNumber numberWithInt:1];
object.number2 = [NSNumber numberWithInt:2];
object.number3 = [NSNumber numberWithInt:3];
if (reload)
[theTmpObjects.objects addObject:object];
else
[theObjects.objects addObject:object];
[object release];
}
//later in my code
TheObjects *localTheTmpObjects = nil;
if (reload){
localTheTmpObjects = theObjects;
theObjects = theTmpObjects;
}
if ([delegate respondsToSelector:#selector(finished:)]){
[delegate performSelector:#selector(finished:) withObject:theObjects];
}
if(reload)
[localTheTmpObjects release];
}

Answer 1

remove the line [localTheTmpObjects release]
you don't own the object
at the end, call the `[localTheTmpObjects autorelease];`
this is because if you release array, all its objects are released and hence may cause crash, when your array may in use
- (id)init
{
self = [super init];
if (self) {
TheObjects *obbjects = [[TheObjects alloc] init];
theObjects = objects;
[objects releas];
[self parse];
}
return self;
}
- (void) reload{
reload = YES;
TheObjects *obbjects = [[TheObjects alloc] init];
thetmpObjects = objects;
[objects releas]; [self parse];
}
- (void)parse{
for (id xmlOBject in xmlObjects){
MyObject *object = [[MyObject alloc] init];
object.number1 = [NSNumber numberWithInt:1];
object.number2 = [NSNumber numberWithInt:2];
object.number3 = [NSNumber numberWithInt:3];
if (reload)
[theTmpObjects.objects addObject:object];
else
[theObjects.objects addObject:object];
[object release];
}
//later in my code
TheObjects *localTheTmpObjects = nil;
if (reload){
localTheTmpObjects = theObjects;
theObjects = theTmpObjects;
}
if ([delegate respondsToSelector:#selector(finished:)]){
[delegate performSelector:#selector(finished:) withObject:theObjects];
}
}