从Documents Directory Swift iOS的子文件夹中获取文件列表

Riddhi Shah 发表于 Dev

里迪沙

我正在使用此代码从文档目录获取PDF文件列表。现在，我想从文档目录中名为“ MyFiles”的文件夹中查找PDF文件列表（如果存在）。

我怎样才能做到这一点？？

func listFilesFromDocumentsFolder() -> [String]
{
    var theError = NSErrorPointer()
    let dirs = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.AllDomainsMask, true) as? [String]

    if dirs != nil {
        let dir = dirs![0]
        let fileList = NSFileManager.defaultManager().contentsOfDirectoryAtPath(dir, error: theError) as! [String]
        var count = fileList.count
        for var i = 0; i < count; i++
        {
            var filePath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first as! String
            filePath = filePath.stringByAppendingPathComponent(fileList[i])
            let properties = [NSURLLocalizedNameKey, NSURLCreationDateKey, NSURLContentModificationDateKey, NSURLLocalizedTypeDescriptionKey]
            var attr = NSFileManager.defaultManager().attributesOfItemAtPath(filePath, error: NSErrorPointer())
        }
        return fileList.filter{ $0.pathExtension == "pdf" }.map{ $0.lastPathComponent } as [String]
    }else{
        let fileList = [""]
        return fileList
    }
}

提前致谢..

里迪沙

这是工作代码。

func listFilesFromDocumentsFolder() -> [String]
{
    var theError = NSErrorPointer()
    let dirs = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.AllDomainsMask, true) as? [String]

    if dirs != nil {
        let dir = dirs![0]//this path upto document directory

        //this will give you the path to MyFiles
        let MyFilesPath = dir.stringByAppendingPathComponent("/BioData")
        if !NSFileManager.defaultManager().fileExistsAtPath(MyFilesPath) {
            NSFileManager.defaultManager().createDirectoryAtPath(MyFilesPath, withIntermediateDirectories: false, attributes: nil, error: theError)
        } else {
            println("not creted or exist")
        }

        let fileList = NSFileManager.defaultManager().contentsOfDirectoryAtPath(MyFilesPath, error: theError) as! [String]

        var count = fileList.count
        for var i = 0; i < count; i++
        {
            var filePath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first as! String
            filePath = filePath.stringByAppendingPathComponent(fileList[i])
            let properties = [NSURLLocalizedNameKey, NSURLCreationDateKey, NSURLContentModificationDateKey, NSURLLocalizedTypeDescriptionKey]
            var attr = NSFileManager.defaultManager().attributesOfItemAtPath(filePath, error: NSErrorPointer())
        }
        println("fileList: \(fileList)")
        return fileList.filter{ $0.pathExtension == "pdf" }.map{ $0.lastPathComponent } as [String]
    }else{
        let fileList = [""]
        return fileList
    }
}