Question

I have a menu based navigation. The menu is a tableView. Everytime a user presses one entry in that table I want to switch to another viewcontroller, and if there is any view pushed I want to clean the navigation stack first.

This is what I am doing

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    [(UINavigationController *)self.tabBar.selectedViewController popToRootViewControllerAnimated:YES];


    self.tabBar.selectedIndex = indexPath.row;

}

But

    self.tabBar.selectedIndex = indexPath.row;

Dont let the popToRoot animation finish. Is there any way to know when the animation is done?

Thanks

Answer 1

in your rootViewController , when you rootViewController invoke the - (void)viewDidAppear:(BOOL)animated it means the animation is finish.

You can code in the rootViewControllers - (void)viewDidAppear:(BOOL)animated

If you want must code in your current ViewController , I think it has 2 ways:

1.add a delegate in the rootViewController , when invoke the - (void)viewDidAppear:(BOOL)animated use delegate to sent the message

2.add a notification in the rootViewController,when invoke the - (void)viewDidAppear:(BOOL)animated post a notification . And in your current ViewController you can receive the notification