ios - Updating data after modal segue completed -

How can I update the data after the Model Segue is dismissed? As I think the best method is using notifications, but I do not know how to set up notification in the main scene when the model seagull is closed.

I have a "logged in" modal view, when the user clicks the "don" modal view, then dismissed, the main view reads new data from NSUserDefaults and displays new data .

  @IBAction func doneLicked (From: AnyObject) {Settings.synchronize () self.dismissViewControllerAnimated (true, perfection: zero)}  

If you are using storyboard then open segues. Then you just use segue.sourceViewController and get the data that you need - has now been dismissed - Model View Controller In your case, you can see any data from the Model View Controller There is no need to, so open whatever you want SEGUE IBAction-method

A guide: