ios - 运行我的第一个 iOS 应用程序时收到 SIGABRT

Question

尝试使用 Xcode 5.1 编写我的第一个 iPhone 应用程序。这是我的 AppDelegate 代码的一部分

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    self.viewController = [self.storyboard instantiateViewControllerWithIdentifier:@"AddViewController"];
    self.navigationController = [[UINavigationController alloc] initWithRootViewController:self.viewController];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    [self.window setRootViewController:self.viewController];
    [self.window addSubview:self.navigationController.view];
    [self.window makeKeyAndVisible];

    return YES;
}

我有一个名为“Main.Storyboard”的 Storyboard，带有Navigation Controller 和View Controller。

当我运行我的应用程序时，我收到 SIGABRT 错误和 NSInternalInconsistencyException 异常。

谁能帮我解决这个错误？

谢谢。

Answer 1

为什么要将 subview 添加为 UINavigationController.view 并将 Root View 添加为 view-controller？您的代码必须如下所示:-

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    self.viewController = [self.storyboard instantiateViewControllerWithIdentifier:@"AddViewController"];
    self.navigationController = [[UINavigationController alloc] initWithRootViewController:self.viewController];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    [self.window setRootViewController:self.navigationController];

    [self.window makeKeyAndVisible];

    return YES;
}

并验证您的 View Controller 的标识符设置是否正确，您在上面给出。