Question

I have the mainWindow.xib in my application with a TabController in it for my main-menu.

Now I want to have a Login-form for my application.
I added a View (LoginViewController) and show this view at beginning:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
// Add the tab bar controller's current view as a subview of the window

self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];

LoginViewController *lvc = [[LoginViewController alloc]     initWithNibName:@"LoginViewController" bundle:nil];
lvc.delegate = self;
[self.tabBarController presentModalViewController:lvc animated:false];
[lvc release];

return YES;
}

Next I have my login-checks in the view, okay.

Now I try to dismiss the view after this.
For this I searched around and found the question here: present modal view controller

I add all things to my project, but getting a error in this code:

#import <UIKit/UIKit.h>

@interface Animexx3AppDelegate : NSObject <UIApplicationDelegate, 
                            UITabBarControllerDelegate, LoginViewControllerDelegate>
{
UIWindow *window;
UITabBarController *tabBarController;
}

@property (nonatomic, retain) IBOutlet UIWindow *window;

@property (nonatomic, retain) IBOutlet UITabBarController *tabBarController;

@end

Which means “cannot find protocol LoginViewControllerDelegate” in line 2/3.

Addition in the line “lvc.delegate = self” I get a warning that tells me “assigning to “id” from incompatible type “Animexx3AppDalagte”.

What did Im wrong?

Answer 1

You need to import the header file where you declared the LoginViewControllerDelegate protocol. Most likely the LoginViewController.h file.