ios - 如何将文件存储在使用 “documentDirectory” swift 创建的文件夹中

Question

我正在使用带有以下代码的 createDirectory 创建新文件夹。

    *let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
    // Get documents folder
    let documentsDirectory: String = paths.first ?? ""
    // Get your folder path
    let dataPath = documentsDirectory + "/MyNewFolder"
    print("Path\(dataPath)")
    if !FileManager.default.fileExists(atPath: dataPath) {
        // Creates that folder if no exists
        try? FileManager.default.createDirectory(atPath: dataPath, withIntermediateDirectories: false, attributes: nil)
    }*

现在我想在“MyNewFolder”下存储新文件，如 log.text。谁能建议我如何在“MyNewFolder”文件夹下保存新文件

提前致谢。

Answer 1

NSSearchPathForDirectoriesInDomains 已过时。推荐API为FileManager

的URL相关API

let folderName = "MyNewFolder"
let fileManager = FileManager.default
let documentsFolder = try! fileManager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
let folderURL = documentsFolder.appendingPathComponent(folderName)
let folderExists = (try? folderURL.checkResourceIsReachable()) ?? false
do {
    if !folderExists {
        try fileManager.createDirectory(at: folderURL, withIntermediateDirectories: false)
    }
    let fileURL = folderURL.appendingPathComponent("log.txt")
    let hello = Data("hello".utf8)
    try hello.write(to: fileURL)

} catch { print(error) }

强烈建议您不要通过连接字符串来构建路径。