Question

我正在尝试执行以下操作：

在应用中显示启动页面。
尝试通过ping我的网站登录用户。如果用户已登录，请转换为每个选项卡带有3个选项卡和导航控制器的选项卡控制器。
如果用户未登录，请使用3个标签转换到标签控制器，但每个标签会将用户带到不同的页面（登录，注册，了解详情）

如何在视图控制器中添加选项卡控制器，而不是在应用程序委托中添加？

我打算做以下事情

将rootController设置为viewcontroller1

UIViewController * viewController1;
viewController1 = [[HTLoginViewController alloc] initWithNibName:@"HTLoginViewController_iPhone" bundle:nil];
self.window.rootViewController = viewController1;

然后在viewcontroller1中调用

- （void）setTab { self.tabBarController = [[UITabBarController alloc] init];

UIViewController * viewController1, *viewController2, *viewController3;

viewController1 = [[HTMyJobsViewController alloc] initWithNibName:@"HTMyJobsViewController" bundle:nil];
viewController2 = [[MTViewController alloc] initWithNibName:@"MTViewController" bundle:nil];
viewController3 = [[HTInviteController alloc] initWithNibName:@"HTInviteController" bundle:nil];


viewController1.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:1];


// account view
UINavigationController * firstNavController = [[UINavigationController alloc]initWithRootViewController: viewController1];
viewController2.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:2];

// book view
UINavigationController * secondNavController = [[UINavigationController alloc]initWithRootViewController: viewController2];
viewController3.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:3];

// invite view
UINavigationController * thirdNavController = [[UINavigationController alloc]initWithRootViewController: viewController3];


CATransition *transition = [CATransition animation];
transition.duration = 0.7f;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = kCATransitionFade;

[firstNavController.view.layer addAnimation: transition forKey:nil];
[secondNavController.view.layer addAnimation: transition forKey:nil];
[thirdNavController.view.layer addAnimation: transition forKey:nil];

self.tabBarController.viewControllers = [[NSArray alloc] initWithObjects: firstNavController, secondNavController, thirdNavController,  nil];
self.tabBarController.delegate = self;
self.tabBarController.selectedIndex = 1;

HTAppDelegate*appDelegate = (HTAppDelegate *)[[UIApplication sharedApplication] delegate];

appDelegate.serivceImg=[[UIImageView alloc]initWithFrame:CGRectMake(0, appDelegate.window.frame.size.height - 66, 108, 58)];
appDelegate.serivceImg.image=[UIImage imageNamed: @"tabi_01.png"];

appDelegate.contactImg=[[UIImageView alloc]initWithFrame:CGRectMake(108,  appDelegate.window.frame.size.height - 66, 107, 58)];
appDelegate.contactImg.image=[UIImage imageNamed: @"tabi_02.png"];

appDelegate.bookingImg=[[UIImageView alloc]initWithFrame:CGRectMake(215,  appDelegate.window.frame.size.height - 66, 105, 58)];

appDelegate.bookingImg.image=[UIImage imageNamed: @"tabi_03.png"];
[ self.tabBarController.view addSubview: appDelegate.serivceImg];
[ self.tabBarController.view addSubview: appDelegate.contactImg];
[ self.tabBarController.view addSubview: appDelegate.bookingImg];


self.tabBarController.tabBar.frame = CGRectMake(0,  appDelegate.window.frame.size.height - 45, 320, 45);

[self.view addSubview: self.tabBarController.view];

完成这项工作的最佳方法是什么？

Answer 1

我会尝试使用不同的结构。首先，在app委托中创建标签栏控制器及其三个内容控制器，并使其成为窗口的根视图控制器。在第一个选项卡的控制器中，在viewDidAppearAnimated：方法中以模态方式显示您的启动页面 - 这将使该视图成为第一个可见的视图（如果您将动画设置为NO）。如果登录成功，只需关闭模态视图控制器，您就可以开始了。如果登录失败，请创建3个新的内容控制器，将其设置为选项卡栏控制器的viewControllers属性，然后关闭模式。这样，你只需要一个标签栏控制器，它就是根视图控制器，这是更常用的设置。

如何在app delegate中创建Tab Bar控制器

1 个答案: