UINavigationController中的ViewController方向更改 [英] ViewController in UINavigationController orientation change

问题描述

所以我有以下层次结构：

So I have the following hierarchy:

UINavigationController - > RootViewController（ UIViewController ） - > UITableViewController - > DetailViewController（ UIViewController ）

UINavigationController --> RootViewController (UIViewController) --> UITableViewController --> DetailViewController (UIViewController)

我想将RootViewController的方向锁定为仅限肖像，但保留其余视图控制器的所有方向。

I want to lock the orientation on RootViewController to Portrait only, but leave all orientations for the rest view controllers.

如果我把它放到子类 UINavigationController ：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

-(NSUInteger)supportedInterfaceOrientations{
    return UIInterfaceOrientationMaskPortrait;
}

然后所有视图控制器都锁定为肖像。

All view controllers are then locked to portrait.

我的问题是，有没有办法只将RootViewController锁定为Portrait，但保留其他视图控制器的所有选项？

My question is, is there a way to lock only RootViewController to Portrait, but leave all options for other view controllers?

推荐答案

检查此处的链接，以便在iOS 6中修复自动旋转并根据每个视图设置方向支持： http://www.disalvotech.com/blog/app-development/iphone/ios-6-rotation-solution/

check the link here for fixing autorotation in iOS 6 and set orientation support per view basis: http://www.disalvotech.com/blog/app-development/iphone/ios-6-rotation-solution/

以下是您可以做的事情：

Here is what you could do:

1. 创建一个自定义导航控制器，它是 .m文件中的> UINavigationController ：

 - (BOOL)shouldAutorotate
 {
      return self.topViewController.shouldAutorotate;
 }
 - (NSUInteger)supportedInterfaceOrientations
 {
      return self.topViewController.supportedInterfaceOrientations;
 }

在你的 AppDelegate.h ，

  @interface AppDelegate : UIResponder <UIApplicationDelegate> {

      UINavigationController *navigationController;
      ViewController *viewController;
  }

  @property (strong, nonatomic) UIWindow *window;
  @property (strong, nonatomic) ViewController *viewController;

和 AppDelegate.m ，

  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
  {
        // set initial view
       self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

       viewController = [[ViewController alloc] initWithNibName:@"RootViewController" bundle:nil];

       navigationController = [[CustomNavigationController alloc]
                    initWithRootViewController:viewController]; // iOS 6 autorotation fix
       [navigationController setNavigationBarHidden:YES animated:NO];

        self.window = [[UIWindow alloc]
           initWithFrame:[[UIScreen mainScreen] bounds]];

        [self.window setRootViewController:navigationController]; // iOS 6 autorotation fix
        //[self.window addSubview:navigationController.view];

        [self.window makeKeyAndVisible];


         return YES;
  }


  - (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window  // iOS 6 autorotation fix
  {
          return UIInterfaceOrientationMaskAll;

  }

在你的rootViewController中，无论事件是什么推动执行此操作：

in your rootViewController, for whatever the event push the second view controller, do this:

  - (IBAction)pushSecondViewController:(id)sender {

    // push second view controller
    SecondViewController *secondViewController = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    [self.navigationController pushViewController:secondViewController animated:YES];
   }

，添加

in your each view controller, add

   - (BOOL)shouldAutorotate{}
   - (NSUInteger)supportedInterfaceOrientations{}

对于iOS 6，您可以设置每个视图控制器，无论您需要单独的方向支持。

for iOS 6, you can set each view controller whatever the orientation support you want individually.

对于iOS 5及以下版本，您可以设置

for iOS 5 and below, you can set

   - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{}

所有学分都归John DiSalvo所有，他在链接中编写了示例应用程序。

All the credits goes to John DiSalvo who wrote the sample app in the link.

希望这会有所帮助。

这篇关于UINavigationController中的ViewController方向更改的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！