【iOS基础控件 - 15】- UINavigationController 多控制器 简单使用
- UINavigationController
- UITabBarController
初始化UINavigationController
设置UIWindow的rootViewController为UINavigationController
1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 2 // 设置window 3 self.window = [[UIWindow alloc] init]; 4 self.window.frame = [[UIScreen mainScreen] bounds]; 5 self.window.backgroundColor = [UIColor grayColor]; // window是灰色背景 6 [self.window makeKeyAndVisible]; 7 8 9 // 设置UINavigationController 10 UINavigationController *nvController = [[UINavigationController alloc] init]; 11 nvController.view.backgroundColor = [UIColor blueColor]; // 设置蓝色背景 12 self.window.rootViewController = nvController; 13 14 return YES; 15 }
1 // 配置第一个子控制器 2 ViewControllerOne *vc1 = [[ViewControllerOne alloc] init]; 3 [nvController pushViewController:vc1 animated:YES]; 4 5 // 配置第二个子控制器 6 ViewControllerTwo *vc2 = [[ViewControllerTwo alloc] init]; 7 [nvController pushViewController:vc2 animated:YES]; 8 9 // 配置第三个子控制器,这是栈顶的控制器 10 ViewControllerThree *vc3 = [[ViewControllerThree alloc] init]; 11 [nvController pushViewController:vc3 animated:YES];
1 - (void)applicationDidBecomeActive:(UIApplication *)application { 2 // 必须在加载完毕激活app后,所有的view的尺寸位置才能确定 3 UINavigationController *nvController = (UINavigationController *)self.window.rootViewController; 4 NSLog(@"%@", NSStringFromCGRect(nvController.view.frame)); // 整个导航控制器的frame 5 NSLog(@"%@", NSStringFromCGRect(nvController.navigationBar.frame)); // 导航条的frame 6 } 7
1 @property(nonatomic,copy) NSArray *viewControllers; // The current view controller stack.
1 - (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated; // Uses a horizontal slide transition. Has no effect if the view controller is already in the stack.
1 // 配置第一个子控制器 2 ViewControllerOne *vc1 = [[ViewControllerOne alloc] init]; 3 [nvController pushViewController:vc1 animated:YES];
- UINavigationController中的”viewControllers"成员是一个数组,就是子控制器栈
- "childViewControllers"的功能也是一样的(这是UIViewController的成员属性)
- "addChildController"和"pushViewController"的功能一样(这是UIViewController的方法)
1 ViewControllerOne *vc1 = [[ViewControllerOne alloc] init]; 2 [nvController addChildViewController:vc1];
1 // 配置第一个子控制器 2 ViewControllerOne *vc1 = [[ViewControllerOne alloc] init]; 3 nvController.viewControllers = @[vc1];
1 // 传入一个viewController作为 nvController的 rootViewController 2 nvController = [[UINavigationController alloc] initWithRootViewController:vc1];
1 - (IBAction)goToThree { 2 // 配置第三个子控制器 3 ViewControllerThree *vc3 = [[ViewControllerThree alloc] init]; 4 [self.navigationController pushViewController:vc3 animated:YES]; 5 } 6 7 - (IBAction)gotoFour { 8 // 配置第四个子控制器 9 ViewControllerFour *vc4 = [[ViewControllerFour alloc] init]; 10 [self.navigationController pushViewController:vc4 animated:YES]; 11 }
1 // 这里是第三个,要回到第二个 2 - (IBAction)backtoTwo { 3 [self.navigationController popViewControllerAnimated:YES]; 4 }
1 // 现在是第三个控制器的view,要回到第一个控制器的view 2 - (IBAction)backtoOne { 3 // 其实这里拿不到第一个控制器vc1的引用 4 // [self.navigationController popToViewController:vc1 animated:YES]; 5 6 // 直接弹出,直到导航器的rootViewController,就是第一个子控制器vc1了 7 [self.navigationController popToRootViewControllerAnimated:YES]; 8 }
1 @property(nonatomic,copy) NSString *title; // Localized title for use by a parent controller.
1 - (void)viewDidLoad { 2 [super viewDidLoad]; 3 self.navigationItem.title = @"第一个view"; 4 }
1 - (void)viewDidLoad { 2 [super viewDidLoad]; 3 self.navigationItem.title = @"第二个控制器"; 4 5 // 设置左上角的item 6 self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"我要回去" style:UIBarButtonItemStylePlain target:nil action:nil]; 7 8 // 设置右上角的item 9 // 使用bar按钮 10 UIBarButtonItem *item1 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCompose target:nil action:nil]; 11 12 // 使用自定义view 13 UIBarButtonItem *item2 = [[UIBarButtonItem alloc] initWithCustomView:[UIButton buttonWithType:UIButtonTypeContactAdd]]; 14 15 // 这是这是从右到左排列显示 16 self.navigationItem.rightBarButtonItems = @[item1,item2]; 17 }
1 // 第二个控制器 2 - (void)viewDidLoad { 3 [super viewDidLoad]; 4 ... 5 // 设置第二个控制器的“返回”样式 6 self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"速速回2" style:UIBarButtonItemStylePlain target:nil action:nil]; 7 }
1 - (void)applicationDidBecomeActive:(UIApplication *)application { 2 // 必须在加载完毕激活app后,所有的view的尺寸位置才能确定 3 UINavigationController *nvController = (UINavigationController *)self.window.rootViewController; 4 NSLog(@"%@", NSStringFromCGRect(nvController.view.frame)); // 整个导航控制器的frame 5 NSLog(@"%@", NSStringFromCGRect(nvController.navigationBar.frame)); // 导航条的frame 6 }
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