xcode Objective-C 的游乐场
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原文地址: http://stackoverflow.com/questions/26108038/
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Playgrounds for Objective-C
提问by Tarek
Is it at all possible to have Xcode create a .playground file for Objective-C instead of Swift? Are there any available Xcode plugins that allow that?
是否有可能让 Xcode 为 Objective-C 而不是 Swift 创建一个 .playground 文件？是否有任何可用的 Xcode 插件允许这样做？
采纳答案by Victor Sigler
There is a very good library developed by Krzysztof Zab?ockiin Github entitled KZPlaygroundthat support both code in Playgrounds for Objective-C and Swift and a lot of cool features.
有一个由Krzysztof Zab? ocki在 Github 上开发的非常好的库，名为KZPlayground，它同时支持 Objective-C 和 Swift 的 Playgrounds 代码以及许多很酷的功能。
I hope this can help you.
我希望这可以帮助你。
回答by slcott
You can quickly test code snippets using a test case in a new project. Just create a new project and go to the Navigatorin the left pane and hit the Test Navigatorbutton. Then follow this guide
您可以在新项目中使用测试用例快速测试代码片段。只需创建一个新项目并转到左侧窗格中的Navigator并点击Test Navigator按钮。然后按照本指南
The setup code will look a little different than a swift playground, but it still allows you to prototype and play around.
设置代码看起来与 swift playground 略有不同，但它仍然允许您进行原型设计和尝试。
回答by TheFuquan
If the only purpose is to test out Objective-C snippets, i would really recommend you an OS X command line Tool project.
如果唯一的目的是测试 Objective-C 片段，我真的会向您推荐 OS X 命令行工具项目。
回答by Enrico Granata
There are enough moving parts in a playground, and all of those would have to be reimplemented for Objective-C. Reliable playgrounds also depend on definite initialization which Objective-C does not have.
在操场上有足够多的活动部件，所有这些都必须为 Objective-C 重新实现。可靠的 Playground 还依赖于 Objective-C 没有的明确的初始化。
For instance consider:
例如考虑：
var d: NSData // this is not initialized, so I can't use it
vs.
对比
NSData *d; // this is also not initialized, but now I can use it
If I am the person storing the description of your NSData for the sidebar, now I know that I am not supposed to do
如果我是为侧边栏存储 NSData 描述的人，现在我知道我不应该这样做
describe(d)
in the Swift case, but for the Objective-C case, I don't have equal knowledge and I run the risk of saying
在 Swift 的情况下，但对于 Objective-C 的情况，我没有同等的知识，我冒着说的风险
[d description]; // even though d is a random pointer now.. oops, I just crashed!
In short, I don't think any such thing exists, and making one work would also involve some trickery
总之，我觉得不存在这样的东西，做一个作品也会涉及到一些诡计
