Objective-C Library - cannot form weak reference to instance of class

Question

I\'m currently working with the XMPP Library for Objective-C, and I\'m using the \"Desktop\" example code.

It logs in fine; however, when I open a new chat, or someone s

Answer 1

In my project (as a mistake) there was a weak reference to self in dealloc (it was a separate method, called to clear used resource). Using weak reference to one property of this object (that captured just a reference to the resource) solved the problem.

It is really strange to create weak reference to half-destroyed object in dealloc.

NEVER WRITE LIKE THIS:

- (void) dealloc
{
    [self freeUsedResource];
}

- (void) freeUsedResource
{
    __weak MyClass *weakSelf = self;
    dispatch_async(self.queue, ^{

        [weakSelf.usedResource freeUsedMemory];
    });
}