iphone - iPad:标签栏项目标题不显示

Question

嗨，我刚刚添加的 friend TabbarController与 UISplitViewController和相关的DetailsViewController使用波纹管代码: -

-(IBAction)loginclick:(id)sender
{

    tabBarController =[[UITabBarController alloc]init];
    NSMutableArray *array = [NSMutableArray array];

    NSMutableArray *tabArray = [NSMutableArray array];

    UISplitViewController *HomeSpilitView = [[[UISplitViewController alloc] init]autorelease];

    HomeSpilitViewController *HomeMster = [[HomeSpilitViewController alloc] initWithNibName:@"HomeSpilitViewController" bundle:nil];
    UINavigationController *masterNavigationController = [[[UINavigationController alloc] initWithRootViewController:HomeMster] autorelease];

    [array addObject:masterNavigationController];


    HomeDetailsViewController *HomeDetailsViewControllers = [[HomeDetailsViewController alloc] initWithNibName:@"HomeDetailsViewController" bundle:nil];

    UINavigationController *detailNavigationController = [[[UINavigationController alloc] initWithRootViewController:HomeDetailsViewControllers] autorelease];



    [array addObject:detailNavigationController];




    [HomeSpilitView setViewControllers:array];

    [tabArray addObject:HomeSpilitView];

    HomeMster.objHomeDetailsViewcontroller = HomeDetailsViewControllers;
    HomeSpilitView.delegate = HomeDetailsViewControllers;

    array = [NSMutableArray array];




    UISplitViewController *splitViewConntroller2 = [[[UISplitViewController alloc] init]autorelease];

    REMMasterViewController *viewCont3 = [[REMMasterViewController alloc] initWithNibName:@"REMMasterViewController" bundle:nil];

    UINavigationController *masterNavigationController3 = [[[UINavigationController alloc] initWithRootViewController:viewCont3] autorelease];

    [array addObject:masterNavigationController3];


    REMDetailViewController *viewCont4 = [[REMDetailViewController alloc] initWithNibName:@"REMDetailViewController" bundle:nil];

    UINavigationController *detailNavigationController2 = [[[UINavigationController alloc] initWithRootViewController:viewCont4] autorelease];


    [array addObject:detailNavigationController2];

    viewCont3.detailViewController = viewCont4;

     splitViewConntroller2.delegate = viewCont4;
    [splitViewConntroller2 setViewControllers:array];

    [tabArray addObject:splitViewConntroller2];



    // Add the tab bar controller's current view as a subview of the window
    [tabBarController setViewControllers:tabArray];

    objAppdelegate.window.rootViewController=tabBarController; 


}

我在每个 ViewController 中设置导航标题在 - (id)initWithNibName像:-

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        self.title = NSLocalizedString(@"Detail", @"Detail");

        //  self.navigationItem.title=@"details";    I am trying with this line code also
        //  self.tabBarItem.title=@"details";

    }
    return self;
}

在上面我也用 self.navigationItem.title=@"details 设置标题, self.tabBarItem.title=@"details但我仍然有同样的问题，我不知道错误在哪里，请指导我并提供帮助。

谢谢

Answer 1

当您在初始化方法中为 View Controller 设置标题时， View Controller 不在导航 Controller 堆栈中。仅当 View Controller 位于导航 Controller 中时，标题才可见。在导航 Controller 堆栈中添加这些 Controller 后，设置标题以查看 Controller 。在您的情况下，在使用 View Controller 作为 Root View vontrollers 创建导航 Controller 之后。