在iOS应用程序的文件夹中打印所有文件名 [英] Print all filenames in a folder in iOS application

问题描述

我的iOS应用程序中有一个包含4个子文件夹的文件夹，每个文件夹包含大约20个文件.我希望能够遍历每个文件夹并打印出文件名.我不确定该怎么做.

I have a folder with 4 subfolders in my iOS application with each of these containing about 20 files each. I would like to be able to iterate through each folder and print out the filenames. I am not sure how to go about doing this.

这是我尝试过的:

    let docsPath = NSBundle.mainBundle().resourcePath! + "/Samples";
    let fileManager = NSFileManager.defaultManager()

    var error: NSError?
    let docsArray = fileManager.contentsOfDirectoryAtPath(docsPath, error:&error)
    println(docsArray)

这将输出nil.我希望它能打印出每个文件名.我如何做到这一点?

This prints out nil. I expect it to print out each of the filenames. How do I make this happen?

推荐答案

没关系，我知道了:

    var docsPath = NSBundle.mainBundle().resourcePath! + "/Snare";
    let fileManager = NSFileManager.defaultManager()

    var error: NSError?
    let docsArray = fileManager.contentsOfDirectoryAtPath(docsPath, error:&error)

    //println(error!.localizedDescription)
    println(docsArray)


    for filename in docsArray!
    {
        let subfolderPath = docsPath + "/"+(filename as! String)
        println(docsPath)

        let subarray = fileManager.contentsOfDirectoryAtPath(subfolderPath, error: &error)
        println(subarray)
    }

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