使用UITabbar中的默认图标

Question

我正在我的应用程序中使用标签栏控件,并希望在我的一个选项卡中使用默认搜索图标.我正在编程标签栏但我无法找到一个属性,我可以在其中指定我在Apple文档中找到的UITabBarSystemItemSearch项目.以下是我的标签栏代码

CouponsViewController *coupons = [[CouponsViewController alloc] init];
    UINavigationController *couponsNavigationController = [[UINavigationController alloc] initWithRootViewController:coupons];
    couponsNavigationController.tabBarItem.title = @"Coupons";
    couponsNavigationController.navigationBar.tintColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.1];
    [coupons release];

    SettingsViewController *settings = [[SettingsViewController alloc] init];
    UINavigationController *settingsNavigationController = [[UINavigationController alloc] initWithRootViewController:settings];
    settingsNavigationController.tabBarItem.title = @"Settings";
    settingsNavigationController.navigationBar.tintColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.1];
    [settings release];

    ProfileViewController *profile = [[ProfileViewController alloc] init];
    UINavigationController *profileNavigationController = [[UINavigationController alloc] initWithRootViewController:profile];
    profileNavigationController.tabBarItem.title = @"Profile";
    profileNavigationController.tabBarItem.image = [UIImage imageNamed:@"profileImg.png"];
    profileNavigationController.navigationBar.tintColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.1];
    [profile release];

    [tabBarController setViewControllers:[NSArray arrayWithObjects:loyaltyNavigationController,searchNavigationController,couponsNavigationController,settingsNavigationController,profileNavigationController,nil]  animated:NO];
    tabBarController.delegate=self;
    tabBarController.selectedIndex=0;

    [window addSubview:tabBarController.view];

Answer 1

在您放入标签栏的UIViewController子类中执行此代码.最好在视图控制器的初始化方法中完成:

- (id) init
{
    self.title = @"search";
    self.tabBarItem = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemSearch
                                                                 tag:0];

    return self;
}