如何强制纵向定位？

Question

如果两个方向最初支持我的应用程序，如何在iOS 7中强制纵向方向？

Answer 1

对于整个应用程序，打开项目文件，转到“常规”选项卡，更改设置：

或直接在Info.plist文件中：

如果您只想在特定的视图控制器上使用它，请覆盖supportedInterfaceOrientations：

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

您可以在官方UIViewController documentation了解有关第二种方法的更多信息。也许，您会找到更适合您具体问题的方法。

Answer 2

UIViewController *c = [[UIViewController alloc]init];
[self presentViewController:c animated:NO completion:nil];
[self dismissViewControllerAnimated:NO completion:nil];

Answer 3

使用以下方法： 在您的app delegate .h

中

@interface PlayWithWSWithLibAppDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate> {

       BOOL flagOrientationAll;
}

@property (assign) BOOL flagOrientationAll;

在您的app delegate .m文件中添加以下方法

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
    //NSLog(@"PlayWithWSWithLibAppDelegate -- supportedInterfaceOrientationsForWindow");
    if(flagOrientationAll == YES){
        return UIInterfaceOrientationMaskPortrait;
    } else {
        return UIInterfaceOrientationMaskAll;
    }
}

在视图中实现以下方式，您希望在iPhone设备中以纵向和横向旋转

-(void)viewWillAppear:(BOOL)animated
{
    self.tabBarController.delegate = self;

    PlayWithWSWithLibAppDelegate *delegate = (PlayWithWSWithLibAppDelegate *) [[UIApplication sharedApplication] delegate];
    delegate.flagOrientationAll = YES;
 }
}

-(void)viewWillDisappear:(BOOL)animated
{
    //NSLog(@"viewWillDisappear -- Start");
     PlayWithWSWithLibAppDelegate *delegate = (PlayWithWSWithLibAppDelegate *)[[UIApplication sharedApplication] delegate];
        delegate.flagOrientationAll = NO;
}

以下是我的主题与您的问题相似的内容：iOS 7 Interface Orientation

Answer 4

#import <objc/message.h>

objc_msgSend([UIDevice currentDevice], @selector(setOrientation:), UIInterfaceOrientationLandscapeRight);//here you may change your desired Orientation