如何在Xcode 6中访问Build Settings？ [英] How to access Build Settings in Xcode 6?

问题描述

如何访问Build Settings变量似乎有很多变化（即为不同的 Debug 与<$定义Web服务的基本URL c $ c>发布环境）。

There seems to be a lot of variations of how to access the Build Settings variables (i.e. to define the base URL of a web service for different Debug vs. Release environments).

我在Project - > Building Settings中创建了一个User-Defined变量，每个环境一个。我们称之为 WEB_SERVICE_BASE_URL 。

I created a User-Defined variable in Project -> Building Settings, one for each environment. Let's call it WEB_SERVICE_BASE_URL.

如何在代码中访问它？我正在使用XCode 6和Swift。

How do I access it in the code? I'm using XCode 6 and Swift.

我试过这个但它不起作用

I've tried this but it doesn't work

let api_key = ${WEB_SERVICE_BASE_URL}

我也尝试过这也不起作用

I've also tried this and it also doesn't work

let api_key = NSUserDefaults.standardUserDefaults().stringForKey("WEB_SERVICE_BASE_URL")

有什么建议吗？这似乎是一个经常需要的解决方案，它在Rails中非常容易，但在iOS开发中并非如此。

Any suggestions? This seems to be a often needed solution, it's so easy in Rails, but not so in iOS development.

推荐答案

以下是如何设置：

1. 将用户定义的设置添加到目标的构建设置 （您使用 WEB_SERVICE_BASE_URL ）


2. 向目标的 Info.plist 带密钥的文件： WEB_SERVICE_BASE_URL ，输入：字符串，值： $ { WEB_SERVICE_BASE_URL}



1. Add a User-Defined setting to your target's Build Settings (which you did with WEB_SERVICE_BASE_URL)
2. Add a new row to your target's Info.plist file with key: WEB_SERVICE_BASE_URL, type: String, value: ${WEB_SERVICE_BASE_URL}

以下是获取价值的方法：

Here's how get the value:

let api_key = Bundle.main.object(forInfoDictionaryKey: "WEB_SERVICE_BASE_URL") as? String

注意：这些键/值可以从包中提取，所以一定要避免将敏感数据存储在那里。

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