Call Delegate Method Prior to View Dismissal

Question

I have a modal view controller presented and just before I dismiss it, I need to call a delegate method which tells the parent view controller to update. (As methods like viewWillAppear are not called when dismissing a modal view controller).

So my code looks like this:

[delegate addEquipmentDidSave:YES];
[self dismissViewControllerAnimated:YES completion:nil];

Very simple. Send a message back, saying, update now! And then just dismiss the view. However, while both of these lines are called, the delegate method never runs. So I check that the delegate it set correctly. When I present the modal view I set the delegate, so its all connected.

Its as if the delegate method isn't getting a chance to run before the view is dismissed. Is this possible? What do you think might be the issue?

Thanks.

Answer 1

Before calling your delegate method first check whether it's available or not

if ([self.delegate respondsToSelector:@selector(addEquipmentDidSave:)] )
{
    NSLog("Yes it's available");
    [self.delegate addEquipmentDidSave:YES];
}

[self dismissViewControllerAnimated:YES completion:nil];

Answer 2

Do you see that last parameter, the one called completion? That block is called after the view controller is dismissed. Do what you want to do in there.