Xcode -强制在Landscape中加载启动屏幕

Question

启动屏幕当前默认为设备的当前方向。我已经尝试通过编程来设置它，但它仍然不起作用。

override func viewDidLoad() {
    super.viewDidLoad()
    
    if UIDevice.currentDevice().orientation == UIDeviceOrientation.Portrait || UIDevice.currentDevice().orientation == UIDeviceOrientation.PortraitUpsideDown || UIDevice.currentDevice().orientation == UIDeviceOrientation.Unknown {
        UIDevice.currentDevice().setValue(UIInterfaceOrientation.LandscapeLeft.rawValue, forKey: "orientation")
    }
}

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Answer 1

您可以在目标的常规设置中设置Device Orientation。

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参考：http://www.raywenderlich.com/63229/make-game-like-mega-jump-spritekit-part-12

Answer 2

最后，我想出了一个解决方案。启动屏幕是在应用程序运行之前生成的，所以这里有一个技巧。

在你的项目的常规设置中，只勾选左右景观，这样它就只会生成景观开机画面。并按如下方式混合NSBundle的infoDictionary方法：

@interface NSBundle (Hook)
@end

@implementation NSBundle (Hook)

+ (void)load {
    [NSBundle jr_swizzleMethod:@selector(infoDictionary)
                    withMethod:@selector(hook_infoDictionary)
                         error:NULL];
}

- (NSDictionary<NSString *, id> *)hook_infoDictionary
{
    NSMutableDictionary <NSString *, id> *dict = [[self hook_infoDictionary] mutableCopy];
    dict[@"UISupportedInterfaceOrientations"] = @[@"UIInterfaceOrientationPortrait",
                                                  @"UIInterfaceOrientationLandscapeLeft",
                                                  @"UIInterfaceOrientationLandscapeRight",
                                                  @"UIInterfaceOrientationPortraitUpsideDown",
                                                  ];
    return [dict copy];
}

@end