如何获取文件路径?在基于文档的应用程序中加载文档 [英] How to get file path? Loading documents in Document based app

问题描述

我希望能够保存和加载文档，所以我正在尝试使用以下方法:

I want to be able to save and load documents, so I'm trying to use these methods:

[NSKeyedArchiver archiveRootObject:rootObject toFile:@"myMap.map"];

[NSKeyedArchiver archiveRootObject: rootObject toFile: @"myMap.map"];

rootObject = [NSKeyedUnarchiver unarchiveObjectWithFile:@"myMap.map"];

rootObject = [NSKeyedUnarchiver unarchiveObjectWithFile:@"myMap.map"];

我打算把什么作为文件参数?我现在只有一个常量字符串，但这意味着我只能加载一个文件，我假设有一种方法可以从打开的面板中获取用户的选择作为参数，但是如何呢?

What am I meant to put as the file argument? I just have a constant string for now, but that means I can only load one file, I assume there's a way to get the user's selection from the open panel to be the argument, but how?

推荐答案

使用NSFileManager:

Use NSFileManager:

NSArray *allFileNames = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:@"SomeDirectory"];

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