UITableViewDelegate dealloc method being call while application is still running

I have a class that handle delegate methods for a table. I have used IB and dragged into the NIB a UITableViewDelegate that I changed to my class. I have also included a UITableView object in the NIB where I connect delegate and dataSource to my TableViewDelegate class.

My class gets its table data from the internet so I get my delegated methods called once at view design and return a count of 0 because my data has not yet arrived. When I finish getting all the data I do a [myTable reloadData] and my delegate methods get call again. The problem is that I get the numberOfRowsInSection called, where I now return the number of lines but never get the cellForRowAtIndexPath called and instead get an EXC_BAD_ACCESS. After enabling stack history and Zombies I found out that the dealloc for the class is being called.

dealloc restTable Class - produced with an NSLOG inside the dealloc method.

2011-02-27 00:33:59.979 PesquisaMapa[3526:207] * -[restTable tableView:cellForRowAtIndexPath:]: message sent to deallocated instance 0x5624190 As my obj开发者_StackOverflowect was initially created in IB and my IBOutlet to it is declared in the main class header file and only deallocated when the application finishes, I really dont understand why this instance of the class is being deallocated. My stack is as follows:

(gdb) info malloc-history 0x5624190 Alloc: Block address: 0x05624190 length: 160 Stack - pthread: 0xa0a5f540 number of frames: 34 0: 0x9876f103 in malloc_zone_calloc 1: 0x9876f05a in calloc 2: 0x110ad0f in _internal_class_createInstanceFromZone 3: 0x110d87d in class_createInstance 4: 0xedaff8 in +[NSObject(NSObject) allocWithZone:] 5: 0xedadfa in +[NSObject(NSObject) alloc] 6: 0x4c1205 in -[UIClassSwapper initWithCoder:] 7: 0x5a79e4 in UINibDecoderDecodeObjectForValue 8: 0x5a8693 in -[UINibDecoder decodeObjectForKey:] 9: 0x4c0f43 in -[UIRuntimeConnection initWithCoder:] 10: 0x5a79e4 in UINibDecoderDecodeObjectForValue 11: 0x5a72dc in UINibDecoderDecodeObjectForValue 12: 0x5a8693 in -[UINibDecoder decodeObjectForKey:] 13: 0x4c0200 in -[UINib instantiateWithOwner:options:] 14: 0x4c2081 in -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] 15: 0x37aa94 in -[UIViewController _loadViewFromNibNamed:bundle:] 16: 0x378709 in -[UIViewController loadView] 17: 0x3785e3 in -[UIViewController view] 18: 0x22fe in -[PesquisaMapaAppDelegate application:didFinishLaunchingWithOptions:] at /Users/pcasqueiro/Documents/PesquisaMapa/Classes/PesquisaMapaAppDelegate.m:24 19: 0x2cb1fa in -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] 20: 0x2cd55e in -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] 21: 0x2d7db2 in -[UIApplication handleEvent:withNewEvent:] 22: 0x2d0202 in -[UIApplication sendEvent:] 23: 0x2d5732 in _UIApplicationHandleEvent 24: 0x18eca36 in PurpleEventCallback 25: 0xf98064 in CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION 26: 0xef86f7 in __CFRunLoopDoSource1 27: 0xef5983 in __CFRunLoopRun 28: 0xef5240 in CFRunLoopRunSpecific 29: 0xef5161 in CFRunLoopRunInMode 30: 0x2ccfa8 in -[UIApplication _run] 31: 0x2d942e in UIApplicationMain 32: 0x228c in main at /Users/pcasqueiro/Documents/PesquisaMapa/main.m:14 33: 0x221d in start

It looks like some cleanup is going on in didFinishLaunchingWithOptions of my main class.

Any ideias on what I'm doing wrong?

thanks, PC

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UITableView (and most other classes) don't retain their delegates. That means that if you don't retain the delegate in some manner (e.g. by assigning it to a property declared retain) then it will be disposed of at some point by the main run loop.