我的主捆绑包中有包含文件的文件夹,我想在首次启动应用程序时将它们复制/剪切到文档目录,以便从那里访问它们。我已经看过示例,但它们都是用 Obj-C 编写的,而我使用的是 Swift 3。我该怎么做?
我设法使用两个函数来做到这一点:
func copyFolders() {
let filemgr = FileManager.default
filemgr.delegate = self
let dirPaths = filemgr.urls(for: .documentDirectory, in: .userDomainMask)
let docsURL = dirPaths[0]
let folderPath = Bundle.main.resourceURL!.appendingPathComponent("Test").path
let docsFolder = docsURL.appendingPathComponent("Test").path
copyFiles(pathFromBundle: folderPath, pathDestDocs: docsFolder)
}
func copyFiles(pathFromBundle : String, pathDestDocs: String) {
let fileManagerIs = FileManager.default
fileManagerIs.delegate = self
do {
let filelist = try fileManagerIs.contentsOfDirectory(atPath: pathFromBundle)
try? fileManagerIs.copyItem(atPath: pathFromBundle, toPath: pathDestDocs)
for filename in filelist {
try? fileManagerIs.copyItem(atPath: "\(pathFromBundle)/\(filename)", toPath: "\(pathDestDocs)/\(filename)")
}
} catch {
print("\nError\n")
}
}
有一个内置的 FileManager 函数可以执行此操作。
“如果 srcURL 处的项目是一个目录,则此方法将复制该目录及其所有内容,包括任何隐藏文件。”
do {
let docsURL = try FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
let sourceURL = Bundle.main.resourceURL!.appendingPathComponent("sourceDir").absoluteURL
let destinationURL = docsURL.appendingPathComponent("destDir").absoluteURL
try FileManager.default.copyItem(at: sourceURL, to: destinationURL)
} catch {
print("\nError\n")
}