iphone - 使用 Storyboard View Controller 创建编程选项卡栏？

Question

我有一个以编程方式创建的标签栏，但我在初始化与 View 关联的 Storyboard时遇到了困难。

我能够在没有 Storyboard 的情况下在选项卡栏中成功加载 View (请参阅下面的代码)，但 View 仅部分显示，因为一些 UI 组件在 Storyboard 中。

我的 Storyboard名称是 MainStoryboard，我将 Storyboard View 标识符设置为 SettingsViewController。

如何在下面的代码中为 SettingsViewController 初始化 Storyboard？

- (void)createTabBarItems {
    tabBarController = [[UITabBarController alloc] init];

    settingsViewController  = [[SettingsViewController alloc] init];


    UINavigationController *sett = [[[UINavigationController alloc]
                                     initWithRootViewController: settingsViewController] autorelease];

    [sett.tabBarItem setTitle:@"Settings"];
    [sett.tabBarItem setImage:[UIImage imageNamed:@"settings.png"]];

    [tabBarController setViewControllers:
        [NSArray arrayWithObjects:sett, sett, sett, sett, nil]]; 
}

Answer 1

如果你想在 Storyboard中初始化 View Controller ，你必须使用 Storyboard方法而不是直接分配 View Controller :

// load the storyboard by name
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];

// either one of the two, depending on if your view controller is the initial one
settingsViewController = [storyboard instantiateInitialViewController];
settingsViewController = [storyboard instantiateViewControllerWithIdentifier:@"SettingsViewController"];