My Scenario, I am trying to delete all files from particular document directory by using document folder path. Here, every time I am saving file within my application document directory folder, by using below code I can’t able to delete files
let urlString: String = myurl.absoluteString
print("FILEURL:\(urlString)")
do {
try fm.removeItem(atPath: "\(myurl)")
} catch let error as NSError {
print(error.debugDescription)
}
You are mixing up URL and String path
Either use the String related API
try fm.removeItem(atPath: myurl.path) // NEVER use .absoluteString for a file system path
or use the URL related API (recommended)
try fm.removeItem(at: myurl)
To remove all files get the file URLs in the enclosing directory with contentsOfDirectory(at:includingPropertiesForKeys:options:) and remove one by one
let fileManager = FileManager.default
do {
let documentDirectoryURL = try fileManager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
let fileURLs = try fileManager.contentsOfDirectory(at: documentDirectoryURL, includingPropertiesForKeys: nil, options: .skipsHiddenFiles)
for url in fileURLs {
try fileManager.removeItem(at: url)
}
} catch {
print(error)
}
For delete specific file or folder using Url
let filePathString = "file:///Users/mac-01/Library/Developer/CoreSimulator/Devices/092D2386-5B43-4D98-8DCF-F21E08CCD400/data/Containers/Data/Application/C6D910A2-67D9-48A4-8221-5C81C722D508/Documents/Products"
guard let fileUrl = URL(string: "\(filePathString)") else { return }
do {
try FileManager.default.removeItem(at: fileUrl)
print("Remove successfully")
}
catch let error as NSError {
print("An error took place: \(error)")
}
removeItem method is accept url of document directory file or folder.Please try with it.
For Delete Document directory folder use
let fileManager = FileManager.default
let myDocuments = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first!
do {
try fileManager.removeItem(at: myDocuments)
} catch {
return
}
Related
I have an issues in changing the file path at every launch of the app.
I have a file("AppConstant.json") in application bundle, and this file I need to copy into application document directory. I am successfully saving "AppConstant.json" file inside the created user folder "MyFolder" on Document directory.
But the problem is when I relaunch the application second time, it's not showing the same path. Also I am using relativepath, but still it not getting.
here is the code
// calling the directory
let stringAppConstant = copyFileFromBundleToDocumentDirectory(resourceFile: "AppConstant", resourceExtension: "json")
// saving or get exit file path
func copyFileFromBundleToDocumentDirectory(resourceFile: String, resourceExtension: String) -> String
{
var stringURLPath = "Error_URLPath"
let fileManager = FileManager.default
let docURL = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
let destFolderPath = URL(string:docURL)?.appendingPathComponent("MyFolder")
let fileName = "\(resourceFile).\(resourceExtension)"
guard let newDestPath = destFolderPath, let sourcePath = Bundle.main.path(forResource: resourceFile, ofType: ".\(resourceExtension)"), let fullDestPath = NSURL(fileURLWithPath: newDestPath.absoluteString).appendingPathComponent(fileName) else {
return stringURLPath
}
if !fileManager.fileExists(atPath: newDestPath.path) {
do {
try fileManager.createDirectory(atPath: newDestPath.path,withIntermediateDirectories: true, attributes: nil)
print("Created folder successfully in :::", newDestPath.path)
} catch {
print("Error in creating folder :::",error.localizedDescription);
}
}
else {
print("Folder is already exist!")
}
if fileManager.fileExists(atPath: fullDestPath.path) {
print("File is exist in ::: \(fullDestPath.path)")
stringURLPath = fullDestPath.path
}
else {
do {
try fileManager.copyItem(atPath: sourcePath, toPath: fullDestPath.path)
print("Saved file successfully in :::", fullDestPath.path)
stringURLPath = fullDestPath.path
} catch {
print("Error in creating file ::: \(error.localizedDescription)")
}
}
return stringURLPath
}
Please help me, where I need to save the path in Sandbox. Is this right way what I implemented.
I am running in device and simulator, both path are different while relaunch
this is the path for first time launch:
/var/mobile/Containers/Data/Application/81B568A7-0932-4C3E-91EB-9DD62416DFE8/Documents/MyFolder/AppConstant.json
relaunch the application I am getting new path:
/var/mobile/Containers/Data/Application/3DAABAC3-0DF5-415B-82A5-72B204311904/Documents/MyFolder/AppConstant.json
NOTE: I create a sample project and I use this same code and it's working. But in existing project it's not working. I am using the same bundle id and profile only for both sample and project. Checked the file added reference, settings, version all are same.
Any idea?
The behavior that the container path changes periodically is normal.
These lines
let destFolderPath = URL(string:docURL)?.appendingPathComponent("MyFolder")
let fileName = "\(resourceFile).\(resourceExtension)"
guard let newDestPath = destFolderPath, let sourcePath = Bundle.main.path(forResource: resourceFile, ofType: ".\(resourceExtension)"), let fullDestPath = NSURL(fileURLWithPath: newDestPath.absoluteString).appendingPathComponent(fileName) else {
return stringURLPath
}
contain a lot of mistakes
URL(string is the wrong API for file paths, it's URL(fileURLWithPath).
The second parameter of path(forResource:ofType:) must not have a leading dot.
The API absoluteString is wrong as parameter of URL(fileURLWithPath
Not a real mistake but don't use NSURL in Swift.
It's highly recommended to use always the URL related API to concatenate paths and get the documents folder from FileManager. Further it's good practice to make the method throw the real error rather than returning a meaningless literal string. And NSSearchPathForDirectoriesInDomains is outdated and should not be used in Swift.
func copyFileFromBundleToDocumentDirectory(resourceFile: String, resourceExtension: String) throws -> URL
{
let sourceURL = Bundle.main.url(forResource: resourceFile, withExtension: resourceExtension)!
let fileManager = FileManager.default
let destFolderURL = try fileManager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false).appendingPathComponent("MyFolder")
let fullDestURL = destFolderURL.appendingPathComponent(resourceFile).appendingPathExtension(resourceExtension)
if !fileManager.fileExists(atPath: destFolderURL.path) {
try fileManager.createDirectory(at: destFolderURL, withIntermediateDirectories: true, attributes: nil)
print("Created folder successfully in :::", destFolderURL.path)
try fileManager.copyItem(at: sourceURL, to: fullDestURL)
print("Saved file successfully in :::", fullDestURL.path)
} else {
print("Folder already exists!")
if fileManager.fileExists(atPath: fullDestURL.path) {
print("File exists in ::: \(fullDestURL.path)")
} else {
try fileManager.copyItem(at: sourceURL, to: fullDestURL)
print("Saved file successfully in :::", fullDestURL.path)
}
}
return fullDestURL
}
Edit 1:
Hi I created the new project and use the same code I posted in main, and it's working. But in the real project it not working.
Not sure what exactly going on in your project, try to debug it. It's part of development as well. :)
If you are in hurry to fix this issue in this weekend try to use the following code snippet.
// collect data from bundle
let constFileURL = Bundle.main.url(forResource: "AppConst", withExtension: "json")!
let data = try! Data(contentsOf: constFileURL)
// try to write data in document directory
do {
let constFileURL = try saveFileInDocumentDirectory(filePath: "MyFolder/AppConst.json", data: data)
// use your `constFileURL`
} catch (let error as FileOperationError) {
switch error {
case .fileAlreadyExists(let url):
let data = try! Data(contentsOf: url)
print(String(data: data, encoding: .utf8))
case .IOError(let error):
print("IO Error \(error)")
}
} catch {
print("Unknown Error \(error)")
}
// Helpers
enum FileOperationError: Error {
case fileAlreadyExists(url: URL)
case IOError(Error)
}
func saveFileInDocumentDirectory(filePath: String, data: Data) throws -> URL {
// final destination path
let destURLPath = fullURLPathOf(filePath, relativeTo: .documentDirectory)
// check for file's existance and throw error if found
guard FileManager.default.fileExists(atPath: destURLPath.path) == false else {
throw FileOperationError.fileAlreadyExists(url: destURLPath)
}
// Create Intermidiate Folders
let intermidiateDicPath = destURLPath.deletingLastPathComponent()
if FileManager.default.fileExists(atPath: intermidiateDicPath.path) == false {
do {
try FileManager.default.createDirectory(at: intermidiateDicPath, withIntermediateDirectories: true, attributes: nil)
} catch {
throw FileOperationError.IOError(error)
}
}
// File Writing
do {
try data.write(to: destURLPath, options: .atomic)
} catch {
throw FileOperationError.IOError(error)
}
return destURLPath
}
func fullURLPathOf(_ relativePath: String, relativeTo dic:FileManager.SearchPathDirectory ) -> URL {
return FileManager.default.urls(for: dic, in: .userDomainMask).first!.appendingPathComponent(relativePath)
}
Original Answer
Why don't you just return "MyFolder/\(fileName)" on successful file operation? If you need to access the path later you can always do that using FileManager APIs.
let docDir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let constFilePath = docDir.appendingPathComponent("MyFolder/\(fileName)")
// Access const file data
do {
let fileData = try Data(contentsOf: constFilePath)
// Use you data for any further checking
} catch {
// Error in reading file data
print("Error in file data access : \(error)")
}
I downloaded a JSON file from the internet and saved it on document directory. Then I moved the temp file location to my custom file location.
Now I want to print or access from my custom URL/file path where the data is saved.
Here's the code of downloading the file.
func downloadingContent() {
let url = URL(string: "https://file-examples.com/wp-content/uploads/2017/02/file_example_JSON_1kb.json")
URLSession.shared.downloadTask(with: url!) { (urlresponse, response, error) in
guard let originalUrl = urlresponse else { return }
do {
let path = try FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
self.newUrl = path.appendingPathComponent("jsonFile")
try FileManager.default.moveItem(at: originalUrl, to: self.newUrl!)
print(self.newUrl!)
}
catch {
print(error.localizedDescription)
return
}
}.resume()
}
Here's the custom file path/URL I get after downloading the file.
file:///Users/fahimrahman/Library/Developer/CoreSimulator/Devices/4DA8E821-097A-4D66-BE95-CE51F3C52CD8/data/Containers/Data/Application/C7714D5E-6CBC-4E54-8619-C9C15EA739B3/Documents/jsonFile
Two options:
Load the data with String(contentsOf: self.newUrl).
Rather than downloadTask use dataTask then you can save the data in Documents and use it directly.
Just like browsing UIIMage using UIImagePickerViewController. Is there any way to browse Another files in Swift / objective code?
if let fileURL = NSBundle.mainBundle().URLForResource("MyImage", withExtension: "jpg") {
// Instantiate the interaction controller
self.docController = UIDocumentInteractionController(URL: fileURL)
}
else {
shareButton.enabled = false
print("File missing! Button has been disabled")
}
You can only access files in document folder. To access All the files
let fileManager = FileManager.default
let documentsURL = fileManager.urls(for: .documentDirectory, in: .userDomainMask)[0]
do {
let fileURLs = try fileManager.contentsOfDirectory(at: documentsURL, includingPropertiesForKeys: nil)
// process files
} catch {
print("Error while enumerating files \(documentsURL.path): \(error.localizedDescription)")
}
and if you want to single file look following code:
// Get the document directory url
let documentsUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
do {
// Get the directory contents urls (including subfolders urls)
let directoryContents = try FileManager.default.contentsOfDirectory(at: documentsUrl, includingPropertiesForKeys: nil, options: [])
print(directoryContents)
// if you want to filter the directory contents you can do like this:
let mp3Files = directoryContents.filter{ $0.pathExtension == "mp3" }
print("mp3 urls:",mp3Files)
let mp3FileNames = mp3Files.map{ $0.deletingPathExtension().lastPathComponent }
print("mp3 list:", mp3FileNames)
} catch {
print(error.localizedDescription)
}
If you want to view PDF files within your app there are two ways.
PDFView - available iOS 11.0
let pdfDocument = PDFDocument(url: url)
pdfView.document = pdfDocument
WKWebView - available iOS 8.0
webView.loadRequest(URLRequest.init(url: url))
You could also use UIWebview to get the same result, But it has been deprecated.
Alternatively, use a file explorer library that you can customize to what you need done. Something like this
https://developer.apple.com/documentation/pdfkit/pdfview
https://developer.apple.com/documentation/webkit/wkwebview
I am making an audio app, and the user can download files locally stored to the documentDirectory using FileManager.
Next, I'd like to allow the user to delete all files using a button. In the documentation, there is a method to remove items.
Here's my code:
#IBAction func deleteDirectoryButton(_ sender: Any) {
let documentsUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
do {
try FileManager.default.removeItem(at: documentsUrl, includingPropertiesForKeys: nil, options: [])
} catch let error {
print(error)
}
}
Unfortunately, this won't build with an error Ambiguous reference to member 'removeItem(atPath:)'.
Is there a better approach to access the documentDirectory and remove all files from the directory in one swoop?
First of all the error occurs because the signature of the API is wrong. It's just removeItem(at:) without the other parameters.
A second issue is that you are going to delete the Documents directory itself rather than the files in the directory which you are discouraged from doing that.
You have to get the contents of the directory and add a check for example to delete only MP3 files. A better solution would be to use a subfolder.
let documentsUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
do {
let fileURLs = try FileManager.default.contentsOfDirectory(at: documentsUrl,
includingPropertiesForKeys: nil,
options: .skipsHiddenFiles)
for fileURL in fileURLs where fileURL.pathExtension == "mp3" {
try FileManager.default.removeItem(at: fileURL)
}
} catch { print(error) }
Side note: It is highly recommended to use always the URL related API of FileManager.
Try this
func clearAllFiles() {
let fileManager = FileManager.default
let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
print("Directory: \(paths)")
do {
let fileName = try fileManager.contentsOfDirectory(atPath: paths)
for file in fileName {
// For each file in the directory, create full path and delete the file
let filePath = URL(fileURLWithPath: paths).appendingPathComponent(file).absoluteURL
try fileManager.removeItem(at: filePath)
}
} catch let error {
print(error)
}
}
Just use code as Follow
to save AudioFile in Document Directory as
func getDocumentsDirectory() -> URL
{
//Get Basic URL
let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
/// Enter a Directory Name in which files will be saved
let dataPath1 = documentsDirectory.appendingPathComponent("folder_name_enter")
let dataPath = dataPath1.appendingPathComponent("folder inside directory if required (name)")
//Handler
do
{
try FileManager.default.createDirectory(atPath: dataPath.path, withIntermediateDirectories: true, attributes: nil)
}
catch let error as NSError
{
print("Error creating directory: \(error.localizedDescription)")
}
return dataPath
}
Delete
func clearAllFilesFromTempDirectory()
{
let fileManager = FileManager.default
let dirPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
let tempDirPath = dirPath.appending("/folder_name/\(inside_directoryName)")
do {
let folderPath = tempDirPath
let paths = try fileManager.contentsOfDirectory(atPath: tempDirPath)
for path in paths
{
try fileManager.removeItem(atPath: "\(folderPath)/\(path)")
}
}
catch let error as NSError
{
print(error.localizedDescription)
}
}
Saving Method
getDocumentsDirectory().appendingPathComponent("\(audioName).wav")
Deletion Method
/// Just call
clearAllFilesFromTempDirectory
This my extension for remove all files and caches from directory.
// MARK: - FileManager extensions
extension FileManager {
/// Remove all files and caches from directory.
public static func removeAllFilesDirectory() {
let fileManager = FileManager()
let mainPaths = [
FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).map(\.path)[0],
FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).map(\.path)[0]
]
mainPaths.forEach { mainPath in
do {
let content = try fileManager.contentsOfDirectory(atPath: mainPath)
content.forEach { file in
do {
try fileManager.removeItem(atPath: URL(fileURLWithPath: mainPath).appendingPathComponent(file).path)
} catch {
// Crashlytics.crashlytics().record(error: error)
}
}
} catch {
// Crashlytics.crashlytics().record(error: error)
}
}
}
}
Swift 5
Delete the whole folder:
If you'd like to delete a whole folder you can simply do this:
func deleteFolder(_ folderName: String, completion: () -> Void) {
let fileManager = FileManager.default
let directory = fileManager.cachesDirectory().appendingPathComponent(folderName)
_ = try? fileManager.removeItem(at: directory)
completion()
}
Delete certain files based on their name:
This will loop through all the files and remove all that contain the
func removeFiles(containing: String, completion: () -> Void) {
let fileManager = FileManager.default
let directory = fileManager.cachesDirectory()
if let fileNames = try? fileManager.contentsOfDirectory(atPath: directory.path) {
for file in fileNames {
if file.contains(containing) {
let filePath = URL(fileURLWithPath: directory.path).appendingPathComponent(file).absoluteURL
_ = try? fileManager.removeItem(at: filePath)
}
}
}
completion()
}
I am a new student in 9th grade learning swift, creating a school project .
I am trying to create a directory where I want to save a scanned file into pdf format.
While creating directory I am getting error below.
Error 1:
Cannot use instance member 'filemgr' within property initializer; property initializers run before 'self' is available.
Error 2:
Expected declaration
Code:
let filemgr = FileManager.default
let dirPaths = filemgr.urls(for: .documentDirectory, in: .userDomainMask)
let docsURL = dirPaths[0]
let newDir = docsURL.appendingPathComponent("data").path
do{
try filemgr.createDirectory(atPath: newDir,withIntermediateDirectories: true, attributes: nil)
} catch {
print("Error: \(error.localizedDescription)")
}
Please assist me in resolving this issue.
Thanks.
Please use this code:
Swift 5.0,
Swift 4.0 And
Swift 3.0
let DocumentDirectory = NSURL(fileURLWithPath: NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0])
let DirPath = DocumentDirectory.appendingPathComponent("FOLDER_NAME")
do
{
try FileManager.default.createDirectory(atPath: DirPath!.path, withIntermediateDirectories: true, attributes: nil)
}
catch let error as NSError
{
print("Unable to create directory \(error.debugDescription)")
}
print("Dir Path = \(DirPath!)")
For Swift 4.0
Please use this
let fileManager = FileManager.default
if let tDocumentDirectory = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first {
let filePath = tDocumentDirectory.appendingPathComponent("\(FOLDER_NAME)")
if !fileManager.fileExists(atPath: filePath.path) {
do {
try fileManager.createDirectory(atPath: filePath.path, withIntermediateDirectories: true, attributes: nil)
} catch {
NSLog("Couldn't create document directory")
}
}
NSLog("Document directory is \(filePath)")
}
For Swift 4.0, I created the following extension off of URL that allows for the creation of a folder off of the documents directory within the application.
import Foundation
extension URL {
static func createFolder(folderName: String) -> URL? {
let fileManager = FileManager.default
// Get document directory for device, this should succeed
if let documentDirectory = fileManager.urls(for: .documentDirectory,
in: .userDomainMask).first {
// Construct a URL with desired folder name
let folderURL = documentDirectory.appendingPathComponent(folderName)
// If folder URL does not exist, create it
if !fileManager.fileExists(atPath: folderURL.path) {
do {
// Attempt to create folder
try fileManager.createDirectory(atPath: folderURL.path,
withIntermediateDirectories: true,
attributes: nil)
} catch {
// Creation failed. Print error & return nil
print(error.localizedDescription)
return nil
}
}
// Folder either exists, or was created. Return URL
return folderURL
}
// Will only be called if document directory not found
return nil
}
}
If the desired folder does not exist, it will create it. Then, assuming the folder exists, it returns the URL back to the user. Otherwise, if it fails, then nil is returned.
For example, to create the folder "MyStuff", you would call it like this:
let myStuffURL = URL.createFolder(folderName: "MyStuff")
This would return:
file:///var/mobile/Containers/Data/Application/4DE0A1C0-8629-47C9-87D7-C2B4F3A16D24/Documents/MyStuff/
You can also create nested folders with the following:
let myStuffHereURL = URL.createFolder(folderName: "My/Stuff/Here")
Which gives you:
file:///var/mobile/Containers/Data/Application/4DE0A1C0-8629-47C9-87D7-C2B4F3A16D24/Documents/My/Stuff/Here/
You are getting this because you are assigning value to newDir instance at wrong place.
I wrote your code in viewDidLoad and it works perfectly.
For Swift 5 and up Version
let documentDirectoryURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
let directoryURL = documentDirectoryURL.appendingPathComponent("FolderName", isDirectory: true)
if FileManager.default.fileExists(atPath: directoryURL.path) {
print(directoryURL.path)
} else {
do {
try FileManager.default.createDirectory(at: directoryURL, withIntermediateDirectories: true, attributes: nil)
print(directoryURL.path)
} catch {
print(error.localizedDescription)
}