如何将标签栏内的视图旋转为纵向

Question

[我搜索了 Stackoverflow 并尝试了各种解决方案/建议，但尚未解决此问题。如果有人能指出我在这里缺少什么，非常感谢。]

我有一个带有多个选项卡的自定义 UITabBarController。每个都是一个 UINavigationController。其中一个 ViewX 是自定义 UINavigationController。

我希望 ViewX 不旋转为横向（仅支持 PortraitUp）。我能够做到这一点。但是，如果我在其他选项卡上处于横向模式并使用 ViewX 点击选项卡，我希望它旋转回纵向，但它保持横向。

CustomUITabController 有这样的代码：

-(BOOL)shouldAutorotate
{
    return [self.selectedViewController shouldAutorotate];
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [self.selectedViewController preferredInterfaceOrientationForPresentation];
}

- (NSUInteger)supportedInterfaceOrientations
{
    if (self.selectedViewController)
        return [self.selectedViewController supportedInterfaceOrientations];

    return UIInterfaceOrientationMaskPortrait;
}

CustomUINavigationController 实现了这个：

-(BOOL)shouldAutorotate
{
    UIInterfaceOrientation interfaceOrientation = [UIApplication sharedApplication].statusBarOrientation;
    return (interfaceOrientation != UIInterfaceOrientationPortrait);
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

我什至尝试过：这只会将状态栏旋转为纵向，但视图仍保持为横向。

- (void)viewWillLayoutSubviews
{
    UIInterfaceOrientation interfaceOrientation = [UIApplication sharedApplication].statusBarOrientation;

    if (interfaceOrientation != UIInterfaceOrientationPortrait)
    {
        [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:YES];
    }
}

Answer 1

我使用以下方法强制只为一个视图设置纵向方向，它对我的​​工作，可能会对你有所帮助

1、创建一个全局标志

delegate.flagOrientationAll 

2，在您的视图控制器的.m 中添加以下代码，用于您的项目ViewX.m

// set flag "flagOrientationAll" to rotate only one view in your perticular view 
-(void)viewWillAppear:(BOOL)animated
{
    NSLog (@"webViewController -- viewWillAppear");
    [super viewWillAppear:animated];

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

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

}

3.对于其他视图，您必须设置

delegate.flagOrientationAll = NO;

4、在你的应用代理中添加自动旋转方法

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

这是我的帖子：How to set one of the screens in landscape mode in iphone?