写入捆绑文件？ [英] Writing to files in bundle?

问题描述

如果您在此链接，可变路径必须是磁盘上的文件吗？可以写入捆绑中的文件，还是必须始终先部署它？

If you scroll down to the section 'Writing to Files and URLs' at this link, would the path varaible have to be a file on disk? Is it possible to write to a file in the bundle or must it always be deployed first?

推荐答案

您可以将文件写入到应用程序包随心所欲。只要通过NSBundle的 pathForResource：ofType：方法获取文件的路径，就可以写入该文件。如果只需要捆绑软件的目录，请使用 resourcePath 。

You can write files to the application bundle as much as you'd like. Just get the path of the file through NSBundle's pathForResource:ofType: method and you can write to that file. If you want just the directory of the bundle, use resourcePath.

您不希望 来执行此操作。原因多种多样，但是您会破坏代码签名，这是一个很大的原因。您应该改用已建立的约定（例如写给Library：Application Support：Your App）。

You don't want to do this, though. There are various reasons, but you'll break code signing, which is a big one. You should use the established conventions instead (such as writing to Library:Application Support:Your App).

EDIT：对于（可能）更令人信服的理由是不这样做。当我第一次学习Cocoa编程时，我之所以保存在捆绑包中，是因为我不想打扰图书馆。但是，这确实很烦人，因为每次对程序进行更改时，都会丢失该程序的所有已保存数据/设置（假设您未使用 NSUserDefaults （用于首选项）。我一直不得不将其从旧版本转移到新版本。使用图书馆，您不必担心。

For a (possibly) more convincing reason of not to do this... When I was first learning Cocoa programming, I saved to the bundle because I didn't want to bother with the Library. It got really annoying, though, because every time you make a change to your program, you lose all of your saved data/settings for that program (assuming you're not using NSUserDefaults for preferences). I kept having to move it over from the old version to the new one. By using the Library, you don't have to worry about this.

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