iphone - 所有 View 中的 ui 导航栏

Question

在我的项目中，导航栏仅在第一个 View 中出现在 Root View (homeview)中，我想在所有 View 中启用导航栏？这是我的代码？我应该为此做什么更改

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
SecondViewController *viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
navigationController = [[UINavigationController alloc] initWithRootViewController:viewController2];
self.window.rootViewController =navigationController;
[self.window addSubview:[navigationController view]];
[self.window makeKeyAndVisible];
return YES;
}

请帮我编码？

Answer 1

查看此link

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{    
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    navigationController =[[UINavigationController alloc] init];

    UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    [navigationController pushViewController:viewController2 animated:NO];  

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

当您从 viewController2 导航到另一个 View 时，请执行 pushViewController 而不是其他 View (例如presentView)

[self.navigationController pushViewController:anotherViewController animated:YES];