Unity5.4.1解决iPhone X砍樵问题（两次拉出控制中

神奇的iPhoneX，让很多游戏开发者，很困扰，很多人想开启边缘保护，可是Unity5.4.1是没有新版本的保护设置
iOS player settings->Other Settings->Defer system gestures on edges.
https://issuetracker.unity3d.com/issues/ios-notification-centre-slash-control-center-appears-after-one-swipe-instead-of-two-swipes-on-ios11-device

image.png

研究后，需要修改UnityViewControllerBase.mm

- (UIRectEdge)preferredScreenEdgesDeferringSystemGestures{
    return UIRectEdgeAll;
}

image.png