在标签之间切换时强制改变方向。 （目标c）

Question

所以我正在测试这个，所以我可以在我的大项目中使用它。 我有一个名为TabBar的tabbarcontroller 这个TabBar有2个标签，每个标签都有一个navigationcontroller。带有按钮的ViewController（OkButtonViewController）当您单击此按钮时，您将转到带有标签（LabelViewController）的viewcontroller。 OkButton View Controller始终处于纵向状态，labelViewController可以切换方向。这只适用于一种情况，它会出错。当你在LabelViewController中，以横向为导向，并且切换选项卡时，OkButtonViewController也处于横向状态，并保持在横向状态。我如何强制viewcontroll回到肖像？

这是我的代码。

我可能需要在TabBar或RotatingTabBarAppDelegate中添加一些内容。我只是不知道是什么。

TabBar.m

  #import "TabBar.h"

  @implementation TabBar

  - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
  {
      return [self.selectedViewController shouldAutorotateToInterfaceOrientation:interfaceOrientation];
  }

  @end

RotatingTabBarAppDelegate.h

  #import <Foundation/Foundation.h>
  #import "TabBar.h"

  @class RotatingTabBarAppViewController;

  @interface RotatingTabBarAppDelegate : NSObject<UIApplicationDelegate>
  {
      IBOutlet UIWindow *window;
  }

  @property (nonatomic, strong) UIWindow *window;

  @end

RotatingTabBarAppDelegate.m

  @implementation RotatingTabBarAppDelegate

  @synthesize window;

  -(void) applicationDidFinishLaunching:(UIApplication *)application
  {
      UIViewController *tab1 = [[UIViewController alloc] init];
      tab1.tabBarItem =[[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemTopRated tag:0];

      UIViewController *tab2 = [[UIViewController alloc] init];
      tab2.tabBarItem = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemSearch tag:1];
      TabBar *tbc = [[TabBar alloc] init];

      [tbc setViewControllers:[NSArray arrayWithObjects:tab1, tab2, nil]];

      [window addSubview:tbc.view];

      [window makeKeyAndVisible];


  }

  @end

OkButtonViewController.h

   #import <UIKit/UIKit.h>

  @interface OkButtonViewContoller : UIViewController


  - (IBAction)ok;

  @end

OkButtonViewController.m

  #import "OkButtonViewController.h"
  #import "LabelViewController.h"

  #define kDetailSegue @"Detail"

  @implementation OkButtonViewContoller


  - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
  {
      return (interfaceOrientation == UIInterfaceOrientationPortrait);

  }

  - (IBAction)ok 
  {
      [self performSegueWithIdentifier:kDetailSegue sender:@"test"];
  }

  - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
      if ([segue.identifier isEqualToString:kDetailSegue]) {
          ((LabelViewController *)segue.destinationViewController).testTekst = sender;
      }
  }

  @end

LabelViewController.h

  #import <UIKit/UIKit.h>

  @interface LabelViewController : UIViewController

  @property (nonatomic, strong) NSString *testTekst; 
  @property (nonatomic, strong) IBOutlet UILabel *testLabel;

  @end

LabelViewController.h

  #import "LabelViewController.h"

  @implementation LabelViewController
  @synthesize testTekst;
  @synthesize testLabel;

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

  -(void)viewWillAppear:(BOOL)animated
  {
      [super viewWillAppear:animated];
      self.testLabel.text = testTekst;
  }

  @end

抱歉英语不好。

Answer 1

您无法强制转换视图，Apple可能拒绝您的应用，您需要找到另一种设计方式。