使用iOS 4.0 SDK和设备开发iOS 3.1应用程序？ [英] Developping an iOS 3.1 application with iOS 4.0 SDK and device?

问题描述

我为iOS部署目标3.2开发了一个iPhone应用程序。

I've developed an iPhone application for an iOS Deployment Target 3.2.

但是我的客户改变了主意，希望该应用程序可用于iOS 3.1。
因此，我设置了iOS部署目标3.1和左侧的SDK到4.0，但一切都编译正常，但我确定我使用的方法和类只在iOS 3.2中引入。

But my client changed his mind and would like the app to be available for iOS 3.1. Thus, i've set iOS Deployment Target 3.1 and left base SDK to 4.0 but everything compiles fine whereas I'm sure I use methods and classes introduced in iOS 3.2 only.

如何识别我的代码不会在3.1设备上运行？ （可能导致应用程序崩溃）

How can I identify my code that won't run on a 3.1 device ? (and may cause an application crash)

我的问题是，我有一个iPhone设备（安装4.0.2）和SDK 3.1.x不提供XCode。

My problem is that I have a single iPhone device (with 4.0.2 installed) and that SDK 3.1.x are not provided by XCode anymore.

推荐答案

Henry，这可能会帮助你安装旧的xcode& sdk平行于新的。旧版SDK的链接可以在这里找到：
http://iphonesdkdev.blogspot.com/2010/04/old-versions-of-iphone-sdk.html

Henry, this might help you: install the old xcode & sdk parallel to the new one. Links to the old SDKs can be found here: http://iphonesdkdev.blogspot.com/2010/04/old-versions-of-iphone-sdk.html

希望，那是您想要什么。

hope, that was what you wanted.

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