Tab bar, reload every time tab is pressed

Question

I am creating an app in which I have five tabs. I need to reload each controller every time when tab is pressed.

Answer 1

Example:

   // AppDelegate ( and  )
   // Creation tabbar and controllers               
    UIViewController* myController1 = [[UIViewController alloc] init] autorelease];
    UINavigationController* nav1 = [[[UINavigationController alloc] initWithRootViewController:myController1] autorelease];

    UIViewController* myController2 = [[UIViewController alloc] init] autorelease];
    UINavigationController* nav2 = [[[UINavigationController alloc] initWithRootViewController:myController2] autorelease];

    NSArray *array = [NSArray arrayWithObjects: myController1, myController2, nil];

    UITabBarController* tab = [[[UITabBarController alloc] init] autorelease];
    tab.viewControllers = array;
    tab.delegate = self; // <-- don't forget set delegate for TabBarController


    // TabBarController Delegate methods   
    - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController;
    {
            // Reload selected VC's view
        [viewController.view setNeedsDisplay];
    }