Question

So I read similar posts, and I think I have everything I need
In my AppDelegate.m the function application:didFinishLaunchingwithoptionis as follows:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
      {

       self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

// Override point for customization after application launch.

if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {

    self.viewController = [[[ViewController_iPhone alloc] initWithNibName:@"ViewController_iPhone" bundle:nil] autorelease];

} else {

    self.viewController = [[[ViewController_iPad alloc] initWithNibName:@"ViewController_iPad" bundle:nil] autorelease];

}

self.window.rootViewController = self.viewController;

[self.window makeKeyAndVisible];

return YES;

}

My appdelegate.h looks like this :

 @class ViewController;

 @interface AppDelegate : UIResponder <UIApplicationDelegate>

 @property (strong, nonatomic) UIWindow *window;

 @property (strong, nonatomic) ViewController *viewController;

 @end

And finally my main.m looks like this:

  int main(int argc, char *argv[])
 {
      @autoreleasepool {
          return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
      }
  }

PLease help, the app just loads a black screen, I don’t know where the problem is.

Answer 1

Make sure you have set the Main nib file base name for iPhone and iPad in the info tab of your target settings.