Storyboard透過segue傳值

//Storyboard透過Segue跳轉會呼叫這個methods

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender

{

    //判斷segue identifier是否是你要的

    if ([[segue identifier] isEqualToString:@"showDetail"]) {

        NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];

        NSManagedObject *object = [[self fetchedResultsController] objectAtIndexPath:indexPath];

        //呼叫目的地的ViewController的方法來傳值

        [[segue destinationViewController] setDetailItem:object];

    }

}