[tableView reloadData]; doesn't work until I scroll the tableView

Question

I have a simple app that downloads search results in XML when the user types in a UISearchBar. The download+parsing is threaded and once done it fires an NSNo

Answer 1

I have the same problem, and I have tried all the solution I can find on google. But All of them don't work.

At last I found that I add observer before viewDidLoad, and then [self.tableView reloadData] is not working.

First I call the setObserverForUserInfoDatabase in the viewDidLoad of my root navigation view controller. Because I think it was called earlier. The function is like this:

- (void)setObserverForUserInfoDatabase:(NSString *)name {
    [[NSNotificationCenter defaultCenter] addObserverForName:name
                                                      object:nil
                                                       queue:nil
                                                  usingBlock:^(NSNotification *note) {
                                                      [self loadUserInfo];
                                                      [self.tableView reloadData];
                                                      NSLog(@"User Panel Notification \n %@", self);
                                                  }];}

Then I move the code into viewDidLoad of the viewController itself.

- (void)viewDidLoad {
    NSLog(@"View Did Load");
    [super viewDidLoad];

    [self setObserverForUserInfoDatabase:UserInfoDataBaseAvailabilityNotification];
}

And then everything works fine.

I don't know the reason yet. If anyone knows please tell me.