TabBar 和导航控制器答案

【问题标题】：TabBar and Navigation ControllerTabBar 和导航控制器
【发布时间】：2013-09-21 10:28:06
【问题描述】：

您好，我是 iOS 新手，我正在尝试在基于 TabBar 的应用中显示导航控制器。

这是我得到的： H 文件：

#import <UIKit/UIKit.h>



@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@property (strong, nonatomic) UITabBarController *tabBarController;

@property (strong, nonatomic) UINavigationController *navigationController;

@end

M文件：

@implementation AppDelegate


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

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil];
    UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    UIViewController *viewController3 = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
    UIViewController *viewController4 = [[FourthViewController alloc] initWithNibName:@"FourthViewController" bundle:nil];
    UIViewController *viewController5 = [[FifthViewController alloc] initWithNibName:@"FifthViewController" bundle:nil];

    self.tabBarController = [[UITabBarController alloc] init];
    self.tabBarController.viewControllers = @[viewController1, viewController2,viewController3,viewController4,viewController5];



    self.navigationController = [[UINavigationController alloc] initWithRootViewController:viewController5];
    self.window.rootViewController = self.navigationController;
    [self.window makeKeyAndVisible];

    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;

}

【问题讨论】：

但是你有什么问题..？
stackoverflow.com/questions/18826125/… 看看这个链接...

标签： ios objective-c uinavigationcontroller tabbar

【解决方案1】：

不是将 viewController5 添加到标签栏控制器的视图控制器，而是添加导航控制器。

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

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil];
    UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    UIViewController *viewController3 = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
    UIViewController *viewController4 = [[FourthViewController alloc] initWithNibName:@"FourthViewController" bundle:nil];
    UIViewController *viewController5 = [[FifthViewController alloc] initWithNibName:@"FifthViewController" bundle:nil];

    self.tabBarController = [[UITabBarController alloc] init];

    self.navigationController = [[UINavigationController alloc] initWithRootViewController:viewController5];
    self.tabBarController.viewControllers = @[viewController1, viewController2,viewController3,viewController4,self.navigationController];

    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;

}

【讨论】：

谢谢大师！这解决了我的问题。
@user2074226，您应该接受我的回答，以便其他人知道您的问题已得到解答。

【解决方案2】：

这不起作用。将视图控制器与导航控制器混合使用可以为您提供不带导航的视图控制器和不带视图控制器的导航控制器。每个 vc 都需要一个导航控制器，然后创建一个由这些导航控制器组成的数组。

这是一个有效的答案：How to add UITabBarController programmatically (no xib file or storyboard)

【讨论】：