向UINavigationController添加标题+按钮

Question

我疯了解决这个问题。

我已经在我的AppDelegate.m 基本上是一个导航控制器+标签栏下面的代码链接到2 tableviewcontroller

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

    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; 

    ElencoSpese *elenco=[[ElencoSpese alloc] init]; 
    elenco.tabBarItem.title=@"Prova 123"; 

    ElencoSpese *elenco2=[[ElencoSpese alloc] init]; 
    elenco2.tabBarItem.title=@"Prova 222"; 

    UITabBarController *tabMenu = [[UITabBarController alloc] init]; 
    tabMenu.viewControllers=[NSArray arrayWithObjects:elenco, elenco2, nil]; 


    UINavigationController *navig=[[UINavigationController alloc] initWithRootViewController:tabMenu]; 
    self.window.rootViewController=navig; 

    [self.window makeKeyAndVisible]; 

    return YES; 
} 

ElencoSpese是TableViewController，它工作正常。我想补充"title"这个窗口和“+”和"Edit"上的NavigationBar ....

我试过上面的按钮来取消注释在tableviewcontroller的方法的loadView如下：没有结果

// Uncomment the following line to display an Edit button in the navigation bar for this view controller. 
self.navigationItem.rightBarButtonItem = self.editButtonItem; 

我alsto中的appdelegate试图设置标题....没什么......

Answer 1

的视图 - 控制被嵌入的TabBar控制器，其在navigationcontroller推。所以，你应该访问像这样的navigationitem：

self.tabBarController.navigationItem.rightBarButtonItem = self.editButtonItem; 

Answer 2

该窗口的标题可以给出如下

行后，在你的代码

self.window.rootViewController=navig; 

只需添加

self.tabbarController.navigationItem.title = @"YOUR TITLE"; 

这将帮助您给出标题

Answer 3

做这样的..

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

    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; 

    ElencoSpese *elenco=[[ElencoSpese alloc] init]; 
    elenco.tabBarItem.title=@"Prova 123"; 

    ElencoSpese *elenco2=[[ElencoSpese alloc] init]; 
    elenco2.tabBarItem.title=@"Prova 222"; 
    UINavigationController *navig=[[UINavigationController alloc]  initWithRootViewController:elenco]; 
UINavigationController *navig1 =[[UINavigationController alloc] initWithRootViewController:elenco2]; 

    UITabBarController *tabMenu = [[UITabBarController alloc] init]; 
    tabMenu.viewControllers=[NSArray arrayWithObjects:navig, navig1, nil]; 

    self.window.rootViewController=tabMenu; 

    [self.window makeKeyAndVisible]; 

    return YES; 
} 

然后每个TableViewController -viewDidLoad添加这样

-(void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    self.title = @"Calculator"; 
    UIBarButtonItem *item = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(yourSelectorMethod)]; 

    UIBarButtonItem *item1 = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:@selector(yourSelectorMethod1)]; 

    self.navigationItem.leftBarButtonItem = item; 
    self.navigationItem.rightBarButtonItem = item1; 
}