iphone - xCode 4.2 的 Storyboard 方向支持吗？

Question

我升级到 xCode 4.2，它是新的 Storyboard功能。但是，找不到同时支持纵向和横向的方法。

当然，我是通过编程方式完成的，有 2 个 View ，一个用于纵向，一个用于横向，就像以前一样，并且:

if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight) 
    {
        self.view = self.landscapeView;
    }
    else
    {
        self.view = self.portraitView;
    }

但我一直在寻找一种以某种方式自动执行此操作的方法。我的意思是，现在是 xCode 4.2，我对它有更多期望。谢谢大家。

====================================
临时解决方案:

我在这里提出一个临时解决方案。我说这是暂时的，因为我仍在等待苹果公司的人员对此做出一些真正明智的事情。

我创建了另一个 .storyboard 文件，名为“MainStoryboard_iPhone_Landscape”，并在那里实现了横向 View Controller 。实际上，它与普通(纵向).storyboard 完全相同，但所有屏幕都是横向模式。

因此，我将从横向 Storyboard中提取 ViewController，并且当发生旋转时，只需使用新 viewController 的 View 更改 self.view 即可。

1.方向改变时生成通知:

[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];

2.查找通知:

[[NSNotificationCenter defaultCenter] addObserverForName:UIDeviceOrientationDidChangeNotification object:nil queue:nil usingBlock:^(NSNotification *note) {    
    // We must add a delay here, otherwise we'll swap in the new view  
    // too quickly and we'll get an animation glitch  
    [self performSelector:@selector(updateLandscapeView) withObject:nil afterDelay:0];
}];

3.实现updateLandscapeView

- (void)updateLandscapeView {  
 //>     isShowingLandscapeView is declared in AppDelegate, so you won't need to declare it in each ViewController
 UIDeviceOrientation deviceOrientation       = [UIDevice currentDevice].orientation;
 if (UIDeviceOrientationIsLandscape(deviceOrientation) && !appDelegate().isShowingLandscapeView)
 {
     UIStoryboard *storyboard                = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone_Landscape" bundle:[NSBundle mainBundle]];
     MDBLogin *loginVC_landscape             =  [storyboard instantiateViewControllerWithIdentifier:@"MDBLogin"];
     appDelegate().isShowingLandscapeView    = YES;  
     [UIView transitionWithView:loginVC_landscape.view duration:0 options:UIViewAnimationOptionTransitionCrossDissolve|UIViewAnimationCurveEaseIn animations:^{
         //>     Setup self.view to be the landscape view
         self.view = loginVC_landscape.view;
     } completion:NULL];
 }
 else if (UIDeviceOrientationIsPortrait(deviceOrientation) && appDelegate().isShowingLandscapeView)
 {
     UIStoryboard *storyboard                = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:[NSBundle mainBundle]];
     MDBLogin *loginVC                       = [storyboard instantiateViewControllerWithIdentifier:@"MDBLogin"];
     appDelegate().isShowingLandscapeView    = NO;
     [UIView transitionWithView:loginVC.view duration:0 options:UIViewAnimationOptionTransitionCrossDissolve|UIViewAnimationCurveEaseIn animations:^{
         //>     Setup self.view to be now the previous portrait view
         self.view = loginVC.view;
     } completion:NULL];
 }}

祝大家好运。

P.S:我会接受 Ad Taylor 的答案，因为经过长时间的等待和寻找解决方案，我完成了从他的答案中得到启发的一些实现。谢谢泰勒。

Answer 1

这是一个老问题，但我在当天早些时候读过这个问题，然后不得不花费相当多的时间来找出更好的解决方案。我通过破解Apple Alternate View example想出了这个解决方案。基本上它为景观 View 提供了一个模态视图。

#pragma mark Rotation view control

- (void)orientationChanged:(NSNotification *)notification
{
    // We must add a delay here, otherwise we'll swap in the new view
    // too quickly and we'll get an animation glitch
    [self performSelector:@selector(updateLandscapeView) withObject:nil afterDelay:0];
}

- (void)updateLandscapeView
{
    UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
    if (UIDeviceOrientationIsLandscape(deviceOrientation) && !self.isShowingLandscapeView)
    {
        [self performSegueWithIdentifier: @"toLandscape" sender: self];
        self.isShowingLandscapeView = YES;
    }
    else if (deviceOrientation == UIDeviceOrientationPortrait && self.isShowingLandscapeView)
    {
        [self dismissModalViewControllerAnimated:YES];
        self.isShowingLandscapeView = NO;
    }    
}


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