iPad的启动方向与横向方向不正确(上下颠倒) [英] launch orientation of iPad is incorrect for landscape orientation (upside down)

问题描述

我在发布会上阅读了一些不同的文章，但是我仍然不确定它是如何工作的.我们仅支持横向定位.在didFinishLaunchingWithOptions中，我这样做:

I read a few different posts on the orientation on launch, but I'm still unsure how it works. We are only supporting landscape orientation. In didFinishLaunchingWithOptions, I do:

    HomeController *myHome = [[HomeController alloc] initWithNibName:@"HomeController" bundle:nil];
    myHome.navigationItem.title = @"Your Dashboard";
    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:myHome];
    [myHome release];

    self.navigationController = navController;
    [navController release];
    self.window.rootViewController = self.navigationController;

在我的HomeController类中:

In my HomeController class:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return UIInterfaceOrientationIsLandscape(interfaceOrientation);    
}

但是当我在设备上启动该应用程序时，它可以颠倒地启动.我如何避免这种情况发生?我看到有人在didFinishLaunchingWithOptions中检测状态栏方向的帖子.如果我在 self.window.rootViewController = self.navigationController; 代码之后执行此操作:

When I start the app however on the device, it can start upside down. How do I avoid that from happening? I saw some posts on people detecting for the status bar orientation in didFinishLaunchingWithOptions. If I do this after the self.window.rootViewController = self.navigationController; code:

NSLog(@"%i", [UIApplication sharedApplication].statusBarOrientation);

我总是得到3.从那里，我不确定该如何解决颠倒的问题.谢谢.

I always get 3. From there, I'm not sure what I can do to fix the upside down issue. Thanks.

推荐答案

我认为您需要在Info.plist中指定受支持的方向.请参阅Info.plist中的支持的接口配置和支持的接口配置(iPad).

I think you need to specify the supported orientations in your Info.plist. See the Supported interface configurations and Supported interface configurations (iPad) in your Info.plist.

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