iPhone getting black screen on app launch

Question

I am getting a black screen whenever my app launches. There is no error message and I have set my main nib file in the .plist file. Here is some of my code.

AppDelegate.h

#import <UIKit/UIKit.h>

@class LoginController;

@interface ViiadAppDelegate : NSObject <UIApplicationDelegate> {

}

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

@property (nonatomic, retain) IBOutlet LoginController *viewController;

@end

AppDelegate.m

#import "AppDelegate.h"

#import "LoginController.h"

@implementation AppDelegate


@synthesize window=_window;

@synthesize viewController=_viewController;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.

    self.window.rootViewController = self.viewController;
    [self.window makeKeyAndVisible];
    return YES;
}

Thanks in advance. I am new to iPhone development.

Answer 1

Since you changed the rootViewController of MainWindow, you have to make sure your MainWindow.xib view outlet is set to your new view controller.