为什么我的iPad Mini在iOS中表示屏幕尺寸错误？ [英] Why is the scale representing screen size wrong in iOS for my iPad Mini?

问题描述

我有第一代iPad Mini（型号A1432 ），屏幕分辨率为1024x768（文档）。

I have a 1st generation iPad Mini (Model A1432) with a screen resolution of 1024x768 (documentation).

I在我的应用程序中有以下代码：

I have the following code in my app:

CGRect screenBounds = [[UIScreen mainScreen] bounds];
CGFloat screenScale = [[UIScreen mainScreen] scale];
CGSize screenSize = CGSizeMake(screenBounds.size.width * screenScale, screenBounds.size.height * screenScale);

screenSize.height和screenSize.width报告：2048x1536，这是错误的。 screenScale的值是2，但我的理解是视网膜屏幕应该只有2，第一代iPad Mini不是。

screenSize.height and screenSize.width report: 2048x1536, which is wrong. The screenScale value is 2, but it is my understanding that it should only be 2 for retina screens, which the 1st generation iPad Mini is not.

任何想法为什么这可能发生了什么？我正在尝试在我的应用程序中使用代码来确定运行时的屏幕分辨率，因为我正在为增强现实应用程序进行像素操作。

Any ideas why this might be happening? I'm trying to have code in my app that determines the screen resolution at runtime, as I am doing pixel manipulation for an augmented reality app.

非常感谢任何帮助。

推荐答案

在评论讨论后......！

After a discussion in comments...!

如果您在iPad上运行仅限iPhone的应用程序，它将模拟视网膜设备并报告 2.0 的比例。我们知道（从上面开始！）iPad mini（gen 1）以及运行iOS 7的标准iPad 2也是如此。

If you run an iPhone only app on an iPad it will simulate a retina device and report a scale of 2.0. We know (from the above!) that the iPad mini (gen 1) does this as well as the standard iPad 2 running iOS 7 would too.

这是。

This was introduced in iOS 7.

很值得注意！

这篇关于为什么我的iPad Mini在iOS中表示屏幕尺寸错误？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！