应用程序窗口预计在应用程序启动结束时有一个根视图控制器

当我的应用程序启动时出现上述错误。以下代码来自我的 AppDelegate .h 文件

#import <UIKit/UIKit.h>

@interface TableViewAppDelegate : NSObject <UIApplicationDelegate> {

UIWindow *window;
UINavigationController *navigationController;
}

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

@end

以下来自我的AppDelegate实现文件.m applicationdidfinishlaunchingwithoptions

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

//Configure and show the window
[window addSubview:[navigationController view]];

[window makeKeyAndVisible];

return YES;
}

将其添加到您的应用程序委托中：

self.window.rootViewController = navigationController;