“部署目标”之间有什么区别？和“iOS部署目标”在Xcode 4 [英] What's the difference between "Deployment target" and "iOS deployment target" in Xcode 4

问题描述

自从Xcode 4发布了关于部署目标选项以来，我一直在怀疑。
有两个选项可供选择。

1. 首先是在TARGETS窗格中，称为部署目标。这是为了设置应用程序可以运行的最低iOS版本。


2. 其次是PROJECT窗格，称为 iOS部署目标。那么这是我不熟悉的那个。



有人可以向我解释如何正确设置第二个选项如果我支持说iOS 4+？

解决方案

1. 第一个是关于不同的目标同一个项目，您可以为其定义具体的设置。它通常用于在单个项目中维护不同版本的同一个核心项目。例如：付费版本和试用版，您将有一个付费版本的目标和一个试用目标


2. 您可以在此定义调试和发布方案的配置。例如：
   

您可以看到我添加了一个新的配置。您现在将对实际目标设置不同的设置：

您还可以做一些有趣的东西，例如在目标上选择定义，将它们复制并粘贴到文件（* .xconfig文件） 。您可以使用此文件作为配置，通过定义它的名称：

这对于维护版本库中的设置版本特别有用。

编辑1.0：

我编辑了第二点

I've been living in doubts since Xcode 4 release about deployment target option. There are two options to set.

1. First is on "TARGETS" pane and is called Deployment Target. This one serves the purpose to set the lowest possible iOS version that app can run on.
2. Second is on "PROJECT" pane and is called iOS Deployment Target. Well, this is the one that I'm not familiar with.

Can someone please explain it to me how to properly set second option if I support let say iOS 4+ ?

解决方案

1. The first is related to different targets of the same project where you can define specific settings for them. It's used normally to maintain in a single project, different versions of the same core project. For example: a paid version and a trial version, you would have a target for the paid version and one target for the trial
2. Here you can define the configurations for your debug and release schemes. For example:

You can see I added a new configuration. You will now have different settings on the actual targets:

You can also do some fun stuff, like selecting your definitions on the target, copy and paste them on a file (*.xconfig file). You can them use this file as configuration, by defining it's name:

This is particularly useful to maintain versions of the settings on the repository.

Edit 1.0:

I edited the second point

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