Crash on quickly presenting / dismissing / re-presenting...

[adamjack]

I have a snackbar show on a modal view controller, it was meant to provide a heads up (with an action) on initial view. I find that if I present the VC but quick (during testing) drop it, and re-raise it, I get a crash. It appears to be attempting to clear up the previous snackbar, which I assume (from the crash) has been deallocated.

• (void)dismissAnimated:(BOOL)animated { [self invalidateTimer]; [self.superview removeConstraints:self.visibleVerticalLayoutConstraints]; [self.superview addConstraints:self.hiddenVerticalLayoutConstraints]; currentlyVisibleSnackbar = nil;

  if (!animated) { if (!self.actionBlockDispatched) <--- Crashes here... [self executeDismissalBlock]; [self removeFromSuperview]; }

called from show:

       [currentlyVisibleSnackbar dismissAnimated:NO];

I am using this from Swift, and my Objective C is already getting rusty, but I wonder if this should be __weak so it nils on cleanup?

   static SSSnackbar *currentlyVisibleSnackbar = nil;