blocks|key|1638148|text|转到文件检查器并取消选中“使用大小类”选项，这是由于新引入的大小类功能支持ios+8中的所有设备。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1638149|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Go to file inspector and uncheck the "use size classes" option, this is due to newly introduced size class feature to support all devices in ios 8

blocks|key|2565249|text|选择您的视图控制器并找到大小检查器，将“固定”更改为“自由格式”，并提供您想要的大小。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2565250|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Select your view controller and find size inspector, Change fixed to freeform and give whatever size you want

blocks|key|2565272|text|新的用户界面可以同时处理各种大小的设备。正如您所看到的，默认大小是600x600。当您模拟时，is使用autolayout和约束来安排所需屏幕的对象，也就是iPhone。如果你想把标签放在屏幕的中央，Ctrl%2Bdrag从标签到背景，释放鼠标和按钮，约束选项就会出现。单击“容器”中的“水平中心”和“容器中的垂直中心”。再跑一次。它将以中心位置。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2565273|诚挚的问候|2565274|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The new user interface works with all sizes of devices at once. The default size is 600x600 as you are seeing. When you simulate, is uses autolayout and constraints to arrange objects for the desired screen, aka an iPhone.
If you want to place the label in the center of the screen, Ctrl+drag from the label to the background, release mouse and buttons and the constraints options will appear. Click Center Horizontally in Container and Center Vertically in Container.
Run again. It will be centered.

Best regards

blocks|key|1631784|text|我有一个密切相关的问题，Mehul+Thakkar的回答帮助我达到了我需要的位置，但我正在添加一个新的答案来充实问题和回答。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1631785|我正在为iPhone+8开发一个iOS应用程序，它将大屏幕上的界面缩小到iPhone+4的大小。我根本不使用情节提要或Interface+/xib文件，而是以编程的方式完成所有事情；对于iOS+7和更早的版本，我没有费心做一个显式的启动屏幕，因为我的UI非常简单，加载得非常快，并且不需要启动屏幕。|1631786|不管怎么说，在找到这个页面之后，在iOS+8上创建一个启动屏幕故事板或nib/xib似乎是必要的，如果您希望您的应用程序以正确的大小运行？(至少，我找不到其他方法来强迫Xcode在项目设置或诸如此类的情况下这样做。)|1631787|为此，我创建了一个新的启动屏幕.xib文件，在该.xib文件的文件检查器的"Interface文档“部分中未选中"Use”，并在目标设置的General选项卡下设置“启动屏幕文件”以使用该.xib。之后，该应用程序再次以全屏大小运行。|1631788|这对我有用，我想我不介意在几分钟内把.xib文件转换成一个合适的启动屏幕，但是我很想知道是否有其他/更好的方法在iOS+8和更高版本中工作，对于那些讨厌我们可爱的代码被那些讨厌的故事板/nibs/xibs的存在污染的人来说.|1631789|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

I had a closely related question, and Mehul Thakkar's answer helped me to get where I needed to be, but I'm adding a new answer to flesh out both the question and answer a bit.

I was working on an iPhone app for iOS 8 that was shrinking the interface on larger screens to the size of the iPhone 4s. I don't use storyboards or Interface Builder nib/xib files at all, and do everything programmatically; for iOS 7 and earlier, I didn't bother making an explicit launch screen as my UI was simple enough that it loaded very quickly and a launch screen wasn't necessary.

Anyway, after finding this page and poking around a bit, it appears that creating a launch screen storyboard or nib/xib is now necessary on iOS 8, if you want your application to run at the correct size? (At least, I couldn't find any other way to coerce Xcode to do it in the project settings or whatnot.)

To do this, I created a new launch screen .xib file, unchecked "Use Size Classes" in the "Interface Builder Document" section of the File Inspector of that .xib file, and set the "Launch Screen File" under the General tab of my target settings to use that .xib. After that, the app ran at full screen size again.

This works for me and I guess I don't mind putting in a few minutes to turn the .xib file into a proper splash screen, but I'd be interested in hearing if there are other/better ways of making things work in iOS 8 and beyond, for those of us who hate our lovely code being tainted by the presence of those nasty storyboards/nibs/xibs...

It is just 2days to start iOS programming.

So I'm very beginner in this area.

<img src="https://i.stack.imgur.com/Au1Y1.png" alt="enter image description here">
&lt;--This image is in iOS simulator. As you see right part is cropped.

<img src="https://i.stack.imgur.com/H5OTg.png" alt="enter image description here">
&lt;--This image is original UI.

I don't know why some parts have gone.

I am using MacBook Pro 2011 with Yosemite OS and brand-new XCode.

I tried cmd+1, cmd+2, cmd+3.

Please help me.

Thank you in advance.

iOS simulator screen size

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

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社区新版编辑器体验调研

开始iOS编程只需要两天时间。所以我是这方面的新手。​<--这个图像在iOS模拟器中。如你所见，右边的部分被剪掉了。​<--这个图像是原始UI。我不知道为什么有些零件不见了。我正在使用MacBook Pro 2011与优胜美地操作系统和全新的XCode.我试过cmd+1，cmd+2，cmd+3。请帮帮我。提前谢谢你。

问iOS模拟器屏幕尺寸
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