iPhone - 屏幕旋转？ [英] iPhone - Screen Rotation?

问题描述

UIDeviceOrientation &的区别是什么？ UIInterfaceOrientation ？

What's the difference between UIDeviceOrientation & UIInterfaceOrientation ?

我应该使用哪一个来检测UIView上的旋转？

Which one should I use to detect rotation on a UIView?

推荐答案

UIDeviceOrientation 为您提供有关物理设备本身的信息，同时 UIInterfaceOrientation 告诉您它正在显示的视图的方向。这些不需要匹配;当用户使用方向锁定或设备方向正面朝上时。

UIDeviceOrientation gives you information about the physical device itself while UIInterfaceOrientation tells you about the orientation of the views it is displaying. These do not need to match; when a user uses the orientation lock or if the the device orientation is face up.

您可能想要检查 UIInterfaceOrientation 和 UIViewController 上的旋转方法，以确定何时已经或应该轮换视图。

You probably want to be checking UIInterfaceOrientation and the rotation methods on UIViewController to determine when views have been or should be rotated.

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