今天复习了下两种app导航（UINavigationController＋UITabBarController）的架构：
1、window（或者如有登陆页面，登陆成功后present到tabController）的rootViewController为UITabBarController，UITabBarController的viewControllers设置为n个UINavigationController，每个UINavigationViewController的rootViewController为自定义VC；
2、rootViewController为UINavigationController，UINavigationController的rootViewControllers设置为一个自定义UITabBarController，UITabBarController的viewControllers设置为n个UINavigationController，每个UINavigationViewController的rootViewController为自定义VC；
显然第二种方式多了个NavigationController，别人一个demo地址https://github.com/JNTian/JTNavigationController ；
自己一直都使用第一种方式，流程图如下
a、首先在Appdelegate里添加如下代码：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; UITabBarController * tabController = [[UITabBarController alloc] init]; UINavigationController * nav1 = [[UINavigationController alloc] initWithRootViewController:[[ViewController alloc]init]];//UIViewController可以自定义 nav1.tabBarItem.title = @"first"; nav1.tabBarItem.image = nil; // nav1.navigationBar.backgroundColor = [UIColor redColor];//背景而已 nav1.navigationBar.barTintColor = [UIColor redColor]; nav1.hidesBottomBarWhenPushed = YES; //看来标题要在每个vc中设置self.title // nav1.title = @"first"; // nav1.navigationItem.title = @"first"; UINavigationController * nav2 = [[UINavigationController alloc] initWithRootViewController:[[UIViewController alloc]init]]; nav2.tabBarItem.title = @"second"; nav2.tabBarItem.image = nil; UINavigationController * nav3 = [[UINavigationController alloc] initWithRootViewController:[[UIViewController alloc]init]]; nav3.tabBarItem.title = @"three"; nav3.tabBarItem.image = nil; [tabController setViewControllers:@[nav1,nav2,nav3]]; self.window.rootViewController = tabController;//[[UINavigationController alloc] init]; //[[ViewController alloc] init]; [self.window makeKeyAndVisible]; return YES; }
b、在自定义VC类中
- (void)viewDidLoad { [super viewDidLoad]; self.title = @"first"; self.view.backgroundColor = [UIColor whiteColor]; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(didTapNextButton)]; // Do any additional setup after loading the view, typically from a nib. } - (void)didTapNextButton{ ViewController* vc = [[ViewController alloc] init]; vc.hidesBottomBarWhenPushed = YES; [self.navigationController pushViewController:vc animated:YES]; }
最后附上代码地址：
两种常用的app导航结构（UINavigationController＋UITabBarController）
原文：http://www.cnblogs.com/yzx0803060320/p/5195930.html