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我已经实现了一个UITabBar程序完全按照苹果推荐的方式,我不能显示标题。下面是我如何实现它:UITabBar标题不显示
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UITabBarController *tabBarController = [[UITabBarController alloc] init];
MainViewController *mainViewController = [[MainViewController alloc] init];
UINavigationController *mainNavigationController = [[UINavigationController alloc] initWithRootViewController: mainViewController];
[[mainNavigationController navigationBar] setBarStyle: UIBarStyleBlack];
[tabBarController setViewControllers: [NSArray arrayWithObjects: mainNavigationController, nil]];
[self.window setRootViewController: tabBarController];
[self.window makeKeyAndVisible];
[mainViewController release];
[mainNavigationController release];
[tabBarController release];
return YES;
}
这里是mainViewController的init方法,我添加标题:
@implementation MainViewController
- (id) init
{
self = [super initWithNibName: nil bundle: nil];
if (self)
{
UITabBarItem *tabBarItem = [[UITabBarItem alloc] initWithTitle:@"Main" image: nil tag: 1];
[self setTabBarItem: tabBarItem];
[tabBarItem release];
}
return self;
}
我发现有一堆的这个其他问题,以及一些有hacky类型的解决方案,但我想知道如果苹果推荐这种方式,为什么它不工作?
尝试使用viewDidLoad编写您在init方法中编写的代码。它应该工作。或者当你分配mainViewController时。像[mainViewController setTabBarItem:...] – 2011-12-24 05:10:13