swift - 设备倒置时 UIDevice.current.orientation 不一致

Question

当我切换UIDevice.current.orientation和打印UIScreen.main.bounds.height或width我得到正确的值时，除了设备倒置时。这里height和width值是相反的。比如在一个iPhone 8 plus模拟器中，awidth是414， aheight是736。但是当模拟器倒置时，突然awidth是736， aheight是414。代码如下：

switch UIDevice.current.orientation {
    case .landscapeLeft, .landscapeRight:
        print("landscape", " width: ", UIScreen.main.bounds.width, " height: ", UIScreen.main.bounds.height)
    case .portrait:
        print("Portrait", " width: ", UIScreen.main.bounds.width, " height: ", UIScreen.main.bounds.height)
    case .portraitUpsideDown:
        print("UPSIDEDOWN", " width: ", UIScreen.main.bounds.width, " height: ", UIScreen.main.bounds.height)
    default:
        print("other")
}

这给出了以下输出：

landscape  width:  736.0  height:  414.0
UPSIDEDOWN  width:  736.0  height:  414.0
landscape  width:  736.0  height:  414.0
Portrait  width:  414.0  height:  736.0

Portrait 和 PortraitUpsidedown 应该有相同的height和width，但是有一个不一致的地方。在纵向模式下，短边应该是，width所以我猜倒置方向有问题。还是我误解了这是如何工作的？

标签： swiftuideviceuideviceorientation