Question

I know this question has been asked before, but non of the solutions solve my problem, so I’m asking this again. I am trying to call a method on self as the result of a callback through a block. I’m getting the following error:

Capturing ‘self’ strongly in this block is likely to lead a retain cycle

- (void)viewDidLoad {
   [super viewDidLoad];

   self.webClient.completionHandler = ^{
      [self populateData];
   };
}

I tried doing something like the code below, and I’m still getting the same warning.
What’s the solution?

__weak id myself = self;
[myself populateData];  

Answer 1

Your code should look like this:

- (void)viewDidLoad {
   [super viewDidLoad];

   __weak id weakSelf = self;
   self.webClient.completionHandler = ^{
      [weakSelf populateData];
   };
}