Question

当我初始化一个navigationcontroller时，我想在根视图控制器的导航栏中添加一个rightbarbuttonitem。所以自定义视图控制器不在navigationcontroller中，接下来就是。我的代码是：

        TipsViewController *tipsView = [[TipsViewController alloc] initWithNibName:@"TipsViewController" bundle:[NSBundle mainBundle]];
        UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:tipsView];
        self.loginViewDelegate = tipsView;
        UINavigationItem *navigationItem = [[navigationController navigationItem] init];
        UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"load" style:UIBarButtonItemStylePlain target:self action:nil];
        navigationItem.rightBarButtonItem = barButtonItem;
        [self setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
        [loginViewDelegate passRegistrationResult:str];
        [self presentModalViewController:navigationController animated:YES];
        [tipsView release];
        [navigationController release];

我试试这个但不行......

Answer 1

api presentModalViewController：动画：它的第一个参数是UIViewController，而UINavigationController是UIViewController的子类。因此，不能直接呈现UINavigationController，但您可以提供UIViewController并手动添加UINavigationBar和UIBarbuttonItem或使用Interface Builder。

希望它可以帮助你，尽管我不太确定〜:)

如何在初始化新的navigationcontroller时向根视图控制器添加barbuttonitem

1 个答案: