ios - 选择最初显示的 ViewController

Question

我正在尝试根据 NSUserDefaults BOOL 选择 AppDelegate 应该显示的 ViewController。但是 HomeViewController 不显示。我正在使用 Storyboards，我有自己的 UINavigationController 类。

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

    [FBLoginView class];
    [FBProfilePictureView class];

    MeuNavigationController *nav = [[MeuNavigationController alloc]init];
    if ([NSUD boolForChave:@"firstLogin"]==false) {
        ViewController *viewC = [[ViewController alloc]init];
        [nav pushViewController:viewC animated:NO];
    }else{
        HomeViewController *viewP = [[HomeViewController alloc]init];
        [nav pushViewController:viewP animated:NO];
    }

    return YES;
}

Answer 1

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

    [FBLoginView class];
    [FBProfilePictureView class];

    UIViewController *controller = nil;
    if ([NSUD boolForChave:@"firstLogin"]==false) {
        controller = [[ViewController alloc]init];
    }else{
        controller = [[HomeViewController alloc]init];
    }
    self.window.rootViewController = [[MenuNavigationController alloc] initWithRootViewController:controller];
    [self.window makeKeyAndVisible];

    return YES;
}

您注意到您是根据 Storyboard执行此操作的。您可能还想考虑进行此更改:

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

    [FBLoginView class];
    [FBProfilePictureView class];

                                                                // Name of storyboard
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];

    UIViewController *controller = nil;
    if ([NSUD boolForChave:@"firstLogin"]==false) {
        controller = [[ViewController alloc]init];
                                                                        // Set this in the storyboard's identity inspector
        controller = [storyboard instantiateViewControllerWithIdentifier:@"ViewController"];
    }else{
        controller = [storyboard instantiateViewControllerWithIdentifier:@"HomeViewController"];
    }
    self.window.rootViewController = [[MenuNavigationController alloc] initWithRootViewController:controller];
    [self.window makeKeyAndVisible];

    return YES;
}

但是你问...jakenberg 先生，如何设置他们唯一的 View Controller 标识符？

干杯