Why the heck doesn’t this work?

goddammit.m

- (void)doTheThingAnimated:(BOOL)animated
{
	CGFloat buttonAlpha = 1.0f;
	CGFloat leftLabelAlpha = 1.0f;
	CGFloat rightLabelAlpha = 1.0f;

	if ([BUSINESS LOGIC]) {
		buttonAlpha = 0.0f;
		rightLabelAlpha = 0.0f;
	}
	else if ([BUSINESS LOGIC]) {
		buttonAlpha = 0.0f;
		leftLabelAlpha = 0.0f;
	}

	void (^animations)(void) = ^{
		self.leftSideButton.imageView.alpha = buttonAlpha;
		self.leftSideLabel.alpha = leftLabelAlpha;
		self.rightSideButton.imageView.alpha = buttonAlpha;
		self.rightSideLabel.alpha = rightLabelAlpha;
	};

	if (animated) {
		[UIView animateWithDuration:kSideSelectionAnimationDuration
		                      delay:kSideSelectionAnimationDelay
		                    options:kSideSelectionAnimationOptions
		                 animations:animations
		                 completion:NULL];
	}
	else {
		animations();
	}
}

After further review: calling this method from the action on the left or right button prevents the touched button’s image view from animating, but calling it using dispatch_async() on the main queue works. That’s ugly, but it works.