iOS6中的纵向和横向模式 [英] Portrait and Landscape mode in iOS6

问题描述

将我的应用更新为iOS6标准时，肖像/风景消失了。当我使用Xcode 3构建时，Ir工作得很好。但现在使用最新的Xcode和最新的SDK，旋转消失了，它始终处于纵向模式。无论我在支持的界面方向中加入什么。而我之前用于旋转的代码似乎完全没有效果。
我有这些行。

When updating my app to iOS6 standard the portrait / landscape is gone. Ir worked perfectly when I was building with Xcode 3. But now using latest Xcode and latest SDK the rotation is gone and it is always in portrait mode. No matter what I put in "Supported interface Orientations". And the code I used to get rotation before seems to have no effect at all. I had these lines.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    switch (toInterfaceOrientation) {
        case UIInterfaceOrientationPortrait:
        case UIInterfaceOrientationLandscapeLeft:
        case UIInterfaceOrientationLandscapeRight:
            return YES;
        default:
            return NO;
    }
}

如何更改以及如何更改以获取它再次工作？

How do I change and what do I change to get it work again?

推荐答案

首先，在AppDelegate中，写下这个。这是非常重要的

First of all, in AppDelegate, write this. THIS IS VERY IMP

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
     return (UIInterfaceOrientationMaskAll);
}

然后，对于只需要PORTRAIT模式的UIViewControllers，编写这些函数

Then, For UIViewControllers, in which you need only PORTRAIT mode, write these functions

- (BOOL)shouldAutorotate
{
     return YES;
}

- (NSUInteger)supportedInterfaceOrientations
{
     return (UIInterfaceOrientationMaskPortrait);
}

对于需要LANDSCAPE的UIViewControllers，将屏蔽更改为All。

For UIViewControllers, which require LANDSCAPE too, change masking to All.

- (NSUInteger)supportedInterfaceOrientations
{
    return (UIInterfaceOrientationMaskAllButUpsideDown);
    //OR return (UIInterfaceOrientationMaskAll);
}

现在，如果你想在Orientation改变时做一些改变，那么使用这个函数。

Now, if you want to do some changes when Orientation changes, then use this function.

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{

}

编辑：

很大程度上取决于你的UIViewController嵌入哪个控制器。

A lot depends on with which controller is your UIViewController embedded in.

例如，如果它在UINavigationController中，那么你可能需要子类UINavigationController用来覆盖这样的方向方法。

Eg, If its inside UINavigationController, then you might need to subclass that UINavigationController to override orientation methods like this.

子类UINavigationController（层次结构的顶层viewcontroller将控制方向。）确实将它设置为self.window.rootViewController 。

subclassed UINavigationController (the top viewcontroller of the hierarchy will take control of the orientation.) did set it as self.window.rootViewController.

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

从iOS 6开始，UINavigationController不会询问其UIVIewControllers定向支持。因此我们需要将其子类化。

From iOS 6, it is given that UINavigationController won't ask its UIVIewControllers for orientation support. Hence we would need to subclass it.

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