当segue返回时，调用什么方法？

Question

I have a UITableView in a UIPopover; when I tap on a row in the UITableView, I go to a scene (UIView) where I get start and stop times from a UIDatePicker; then using a back button it returns to the calling UITableView, where I want to take the start and stop times and place them in a couple of rows. I save the results in the AppDelegate so I don't lose them, which probably could be done elsewhere.

Question is: when I dismiss the UIView with datepicker, how can I change the rows in the UITableView when it reappears? I tried -viewWillAppear, but it never hits it after the UIView is dismissed. Is there another method that I can use?

Answer 1

How about adding a notification observer to you UITableView class, eg

[[NSNotificationCenter defaultCenter] addObserverForName:@"UpdateTable" object:self queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *note) {
    [self.myTableView reloadData];
}];

and then when you dismiss the UIView you send the notification

[[NSNotificationCenter defaultCenter] postNotificationName:@"UpdateTable" object:nil];

Answer 2

As @Steve Waddicor hasn't added his comment as an answer, and as it is far simpler than the accepted answer, I will post it.

- (void) viewWillAppear:(BOOL)animated

This is called on the calling TableView when the back button is tapped. Not sure why it is not being called for the original poster.