Question

目前我在iPhone应用程序中工作，我有四个屏幕，如登录，A，B和C等。用户在登录屏幕中输入用户名和密码字段，然后按登录按钮

-(void)LoginButtonMethod
{

    A *a = [[A alloc]init];
    B *b = [[B alloc]init];
    C *c = [[C alloc]init];

    UINavigationController *navi1 = [[UINavigationController alloc] initWithRootViewController:a];
    UINavigationController *navi2 = [[UINavigationController alloc] initWithRootViewController:b];
    UINavigationController *navi3 = [[UINavigationController alloc] initWithRootViewController:c];

    UITabBarController *TabBar = [[UITabBarController alloc] init];
    TabBar.delegate = self;
    TabBar.viewControllers = [NSArray arrayWithObjects:navi1, navi2, navi3, nil]; 
    navi1.tabBarItem.title=@"A";
    navi2.tabBarItem.title=@"B";
    navi3.tabBarItem.title=@"C";

    [self.navigationController pushViewController:TabBar animated:YES]; 
}

然后我为每个类设置了导航栏标题，例如A作为facebook，b作为yahoo，c作为google。

最后我运行应用程序，标签栏标题显示在A，B，C中然后我选择第三个标签栏项目（C），在标签标题更改谷歌时。我无法解决这个问题，请帮助我。

先谢谢

Answer 1

Apple的开发者文档声明如下：

    "You never want to push a tab bar controller onto the navigation stack of a navigation controller. Doing so creates an unusual situation whereby the tab bar appears only while a specific view controller is at the top of the navigation stack. Tab bars are designed to be persistent, and so this transient approach can be confusing to users."

尝试展示

[self presentModalViewController:tabBar animated:YES];

Answer 2

您可以将Tabbar推送到Controller By

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

或

[self presentModalViewController:tabBar animated:YES];

希望这能解决你的问题

Answer 3

在此

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

每个视图的方法Controller输出以下代码..

self.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"Comment" image:[UIImage imageNamed:@"Icon-AddComment.png"] tag:0];

self.navigationItem.title = @"Comment";

它有效

iPhone中标签栏标题中的问题？

3 个答案: