UISplitViewController-防止在iPhone 6 plus上横向拆分 [英] UISplitViewController - prevent splitting in landscape on iPhone 6 plus

问题描述

我在我的应用程序中使用UISplitViewController.在始终可以看到主要和次要对象的iPad上，它可以很好地工作；在像UINavigationController一样工作的大多数iPhone上，也可以很好地工作.

I am using a UISplitViewController in my app. This works just fine on iPad where primary and secondary are always visible, and it works just fine on most iPhones where it acts like a UINavigationController.

在iPhone 6+和6S +上，分割视图的作用类似于竖屏的iPhone和横屏的iPad.这种景观分裂给我带来了问题，我想避免这种情况.

On iPhone 6+ and 6S+ the split view acts like an iPhone in portrait and like an iPad in landscape. This splitting in landscape is causing me problems and I'd like to avoid it.

有什么方法可以防止UISplitViewController在iPhone 6+环境中显示主要和辅助控制器吗?我只希望它显示辅助控制器，就像其他iPhone一样.

Is there any way to prevent the UISplitViewController from showing primary and secondary controllers in iPhone 6+ landscape? I just want it to show the secondary controller, the same as it would do for other iPhones.

谢谢.

推荐答案

我能够通过将UISplitViewController子类化，然后重写特质集合以在设备不是iPad时返回紧凑的水平尺寸类来做到这一点.我知道现在检查接口习惯用法是虚假的，但是我不确定该怎么做.

I was able to do this by subclassing the UISplitViewController and then overriding the trait collection to return a compact horizontal size class when the device is not an iPad. I know checking the interface idiom is a faux-pas these days, but I wasn't sure how else to do it.

我只是将此方法添加到我的UISplitViewController子类中:

I simply added this method to my UISplitViewController subclass:

-(UITraitCollection *)traitCollection {
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
        return [super traitCollection];
    } else {
        return [UITraitCollection traitCollectionWithHorizontalSizeClass:UIUserInterfaceSizeClassCompact];
    }
}

当然欢迎任何提出更好方法的建议.

Any suggestions for a better way to do this are certainly welcome.

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