viewWillAppear not called in UITableViewController?

Question

I have a couple of UITableViewController classes and I just noticed that these methods aren't being called:

-(void)viewWillAppear:(BOOL)animated;
-(void)viewDidAppear:(BOOL)animated;

I read in http://discussions.apple.com/thread.jspa?threadID=1529769&tstart=0 that I would have to call those methods myself when pushing view controllers, but that's strange, since it works for anything but UITableViewController.

Also makes it a bit of an issue when I need to have a UITableViewCell deselected in the UIViewController that pushed the UITableViewController.

Answer 1

I can't find it in the documentation, but I think this might be because you are using a UINavigationController.

How about setting the UINavigationController's delegate property and then implementing UINavigationControllerDelegate? It provides two optional methods:

– navigationController:willShowViewController:animated: 
– navigationController:didShowViewController:animated: 

For example, navigationController:willShowViewController:animated: might look something like this:

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
  if ([viewController isKindOfClass:[UITableViewController class]]) {
    [viewController viewWillAppear:animated];
  }
}

Anyway, this will get you the behavior you want without having to hack calls to viewWillAppear: all over your project.