如何在swift中更改文档文件夹中的文件名
如何在swift中更改文档文件夹中的文件名
提问于 2020-12-24 10:05:14
我在我的文档文件夹里有一些文件。我正在保存像"data_20201223163209.pdf"，"data_20201223171831.pdf"，"data_20201222171831.pdf"，"data_20201221171831.pdf“等文件。现在我想用"newdata”这样的字符串替换"data“。所以我的文件应该是"newdata_20201223163209.pdf"，"newdata_20201223171831.pdf"，"newdata_20201222171831.pdf"，"newdata_20201221171831.pdf“
我的代码：
do {
let path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
let documentDirectory = URL(fileURLWithPath: path)
let originPath = documentDirectory.appendingPathComponent("data")
let destinationPath = documentDirectory.appendingPathComponent("newdata")
try FileManager.default.moveItem(at: originPath, to: destinationPath)
} catch {
print(error)
}请帮我解决这个问题
Stack Overflow用户
回答已采纳
发布于 2020-12-24 13:48:51
您只需获取目录的内容，过滤名称以"data_“开头的urls，迭代这些urls并重命名每个urls，将其移动到具有新名称的同一目录。请注意，这假设目标上没有具有新名称的文件。
// Get the documents url
let documentsUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
do {
// Get its contents
let contents = try FileManager.default.contentsOfDirectory(at: documentsUrl, includingPropertiesForKeys: nil)
print(contents)
// filter the contents that starts with "data_"
let dataFiles = contents.filter { $0.lastPathComponent.hasPrefix("data_") }
// iterate the source files
for srcURL in dataFiles {
// create the destinations appending "newdata_" + the source lastPathComponent dropping its "data_" prefix
let dstURL = documentsUrl.appendingPathComponent("newdata_" + srcURL.lastPathComponent.dropFirst(5))
// move/rename your files
try FileManager.default.moveItem(at: srcURL, to: dstURL)
}
} catch {
print(error)
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/65433140
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