[UIScreen mainScreen].bounds.size 在 iOS8 中是否变得依赖于方向? [英] Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?

问题描述

我在 iOS 7 和 iOS 8 中运行了以下代码:

I ran the following code in both iOS 7 and iOS 8:

UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
BOOL landscape = (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight);
NSLog(@"Currently landscape: %@, width: %.2f, height: %.2f", 
      (landscape ? @"Yes" : @"No"), 
      [[UIScreen mainScreen] bounds].size.width, 
      [[UIScreen mainScreen] bounds].size.height);

以下是来自 iOS 8 的结果:

The following is the result from iOS 8:

Currently landscape: No, width: 320.00, height: 568.00
Currently landscape: Yes, width: 568.00, height: 320.00

与 iOS 7 中的结果相比:

Comparing to the result in iOS 7:

Currently landscape: No, width: 320.00, height: 568.00
Currently landscape: Yes, width: 320.00, height: 568.00

是否有任何文档指定了此更改?还是 iOS 8 API 中的临时错误?

Is there any documentation specifying this change? Or is it a temporary bug in iOS 8 APIs?

推荐答案

是的，它在 iOS8 中依赖于方向，而不是错误.您可以查看 WWDC 2014 中的 session 214 以获取更多信息:"View Controller Advancements in iOS 8"

Yes, it's orientation-dependent in iOS8, not a bug. You could review session 214 from WWDC 2014 for more info: "View Controller Advancements in iOS 8"

引自演示文稿:

UIScreen 现在面向界面:

UIScreen is now interface oriented:

• [UIScreen bounds] 现在面向界面
• [UIScreen applicationFrame] 现在面向界面
• 状态栏框架通知面向界面
• 键盘框架通知是面向界面的

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