How to set UIVIewController to RootViewController?

Question

I want to know that how can we setup a UIViewController in a UINavigationController without using UITableView to its Root View Controller. Any help regarding this? Thanks in advance.

Answer 1

You can do that as follows:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // ...
    UIViewController *myViewController = [[UIViewController alloc] init];
    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:myViewController];
    self.window.rootViewController = navigationController;
    // ...
}

You can replace the class of myViewController and/or initialize it using a nib if you want.

Answer 2

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];


   UINavigationController *nav=[[UINavigationController alloc]initWithRootViewController:[[OptionViewController alloc]initWithNibName:@"OptionViewController" bundle:nil]];
    self.window.rootViewController=nav;

    self.window.backgroundColor = [UIColor grayColor];
    [self.window makeKeyAndVisible];
    return YES;
}

Answer 3

It's working for me:

set your tabviewcontroller on window, then it will work properly.

UIWindow *window = [UIApplication sharedApplication].keyWindow;
        UITabBarController *tabVC = [self.storyboard instantiateViewControllerWithIdentifier:@"MyMainView"];

        [window setRootViewController:tabVC];

Answer 4

UINavigationController pushViewController：动画化：