Xcode iPhone - 基础SDK，Active SDK的区别？ [英] Xcode iPhone - Base SDK, Active SDK difference?

问题描述

Xcode中所有配置的基本SDK和Active SDK之间有什么区别？

What's the difference between the "Base SDK for all configurations" and the "Active SDK" in Xcode?

推荐答案

Active SDK值实际上是Base SDK值的构建时覆盖，并确定用于构建应用程序的SDK版本。通常，您应该针对最新的 stable SDK构建应用程序（目前，这是非beta 3.0 SDK），并将iPhone OS部署目标设置为最旧设备的版本你打算支持（例如2.2.1）。

The "Active SDK" value is effectively a build-time override of your "Base SDK" value, and determines which version of the SDK is used to build your application. In general, you should build your application against the latest stable SDK (at the moment, that's the non-beta 3.0 SDK), and set your "iPhone OS Deployment Target" to the version of the oldest device you intend to support (e.g. 2.2.1).

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