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SFExecuteOnDealloc is a simple category on NSObject that allows you to execute arbitrary blocks when object gets dealloced. Keep in mind that order of execution is random when you add multiple blocks.

• iOS 4.0 (Xcode 4.3, Apple LLVM compiler 3.1)

Automatically works with both ARC and non-ARC projects through conditional compilation. There is no need to exclude NSObject+SFExecuteOnDealloc files from the ARC validation process, or to convert NSObject+SFExecuteOnDealloc using the ARC conversion tool.

To use the NSObject+SFExecuteOnDealloc category in an app, just drag the category files (demo files and assets are not needed) into your project. Preferably include NSObject+SFExecuteOnDealloc.h in your Prefix.pch file.

- (void*)performBlockOnDealloc:(void(^)(void))aBlock;

Will call selected block when an object is deallocated. Returns blockKey that can be used to cancel selected block.

- (void)cancelDeallocBlockWithKey:(void*)blockKey;

Cancels selected block from executing when object is deallocated.

__block NSObject *weakSelf = someTestObject;
[someTestObject performBlockOnDealloc:^{
  NSLog(@"this is block for object %@", weakSelf);
}];