启动应用程序后不出现模态视图

发布于 2024-12-26 20:49:50 字数 1194 浏览 1 评论 0原文

用户必须先登录才能使用我的应用程序。我的想法是，应用程序启动后，登录视图会以模态方式出现。

在 iOS 5 之前，我一直使用 .xib 文件。现在我想将视图转换为情节提要，以便进行概述并更好地使用新功能。

该应用程序与 splitview 控制器配合使用。问题是登录视图已加载，但从未出现。

我在应用程序委托中尝试了它，并为 splitviewcontroller 创建了一个类，并尝试将其加载到 viewDidLoad 中。

代码：

- (void)viewDidLoad
{
    [super viewDidLoad];

    //load and push login
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    LoginViewController *loginViewController = [storyboard instantiateViewControllerWithIdentifier:@"loginViewController"];

    NSLog(@"login push: %@", loginViewController);
    [self presentModalViewController:loginViewController animated:YES];
    NSLog(@"done push");
}

日志：

2012-01-13 10:18:08.217 App[1101:707] login push: <LoginViewController: 0x472fe0>
2012-01-13 10:18:08.330 App[1101:707] done push

我尝试在根视图或详细视图中加载它，它可以工作，但位置不正确，xcode 给出消息：

2012-01-13 10:18:08.807 App[1101:707] Unbalanced calls to begin/end appearance transitions for <MainSplitViewController: 0x464bc0>.

我的第一个想法是从登录视图开始，登录后推送 splitview 控制器。但我发现 splitview 控制器必须是根视图。

原文

Before the users can use my app the have to login. My idea was that after the app starts the login view appears modally.

Before iOS 5 I had it all working with .xib files. Now I want to convert the views to a Storyboard for overview and better use of the new functionalities.

The app works with a splitview controller. The problem is that the login view is loaded, but never appears.

I tried it in the app delegate and I made a class for the splitviewcontroller and tried to load it in the viewDidLoad.

Code:

- (void)viewDidLoad
{
    [super viewDidLoad];

    //load and push login
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    LoginViewController *loginViewController = [storyboard instantiateViewControllerWithIdentifier:@"loginViewController"];

    NSLog(@"login push: %@", loginViewController);
    [self presentModalViewController:loginViewController animated:YES];
    NSLog(@"done push");
}

Log:

2012-01-13 10:18:08.217 App[1101:707] login push: <LoginViewController: 0x472fe0>
2012-01-13 10:18:08.330 App[1101:707] done push

I tried to load it in the Root or detail view, it works but its not the right place and xcode gives the message:

2012-01-13 10:18:08.807 App[1101:707] Unbalanced calls to begin/end appearance transitions for <MainSplitViewController: 0x464bc0>.

My first idea is to begin with the login view and after login push the splitview controller. But I found out that the splitview controller has to be the root view.

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