As the titel rleaves. I'm facing the issue, that I have no clue how to save the csv file to the document of the devices so I can get accesse outside my app. Can any body help?
So far I tried this code.
func creatCSV() -> Void {
let fileName = "Tasks.csv"
do {
guard let path = try? FileManager.default.url(
for: .documentDirectory,
in: .allDomainsMask,
appropriateFor: nil,
create: false
).appendingPathComponent(fileName) as NSURL else {
return
}
var csvText = "Date,Task Name,Time Started,Time Ended\n"
for task in taskArr {
let newLine = "\(task.date),\(task.name),\(task.startTime),\(task.endTime)\n"
csvText.append(newLine)
}
try csvText.write(to: path as URL, atomically: true, encoding: String.Encoding.utf8)
} catch {
print("Failed to create file")
print("\(error)")
}
print("not found")
}
But I have no clue where I finde the file after I called the funtion.
Long story short: You have to set in "info.plist" "Application supports iTunes file sharing" to "YES"
Related
See Image as referenceI am working on a project, in which i need to show a UICollectionview, which includes files from filemanager, in this collectionview i am displaying images as well as folders. And there is also a button which deletes the selected cells.
So how can i delete selected folder/images from document directory?
I am creating folder with this function.
func createDir() {
let manager = FileManager.default
guard let url = manager.urls(for: .documentDirectory, in: .userDomainMask).first else {
return
}
print("url path is ==>>",url.path)
let folderName = url.appendingPathComponent(folderNameTextField.text!)
do {
try manager.createDirectory(at: folderName, withIntermediateDirectories: true, attributes: [:])
print("Saved")
listFilesFromDocumentsFolder()
// getAllDirectoriesList()
}
catch {
print(error)
}
}
`And saving images with this function
func saveImageToDocumentDirectory(image: UIImage ) {
let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
//
let fileName = "Doc-" + dateFormatter.string(from: Date())
let fileURL = documentsDirectory.appendingPathComponent(fileName
)
if let data = image.jpegData(compressionQuality: 1.0),!FileManager.default.fileExists(atPath: fileURL.path){
do {
try data.write(to: fileURL)
print("file saved")
} catch {
print("error saving file:", error)
}
}
}
I am using this function to delete, it works but abnormally,
for file in folderImageArray {
try! FileManager.default.removeItem(at: file)
}
And
This function making a crash.
for file in folderNameArray {
try! FileManager.default.removeItem(atPath: file)
}
You should not force unwrap try block, Use do try at-least it will give you the reason why it's not working.
Also adding a little delay will work fine
for file in folderImageArray {
do {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.01) {
try FileManager.default.removeItem(at: file)
}
} catch {
print("File Deletion Failed: \(error.localizedDescription)")
}
}
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 manually created a file amutha.txt in the documents folder. I tried to write data to that file. code which I used is
let string="Amuthapriya"
try string.write(to:fileName, atomically: true, encoding: String.Encoding.utf8)
This is executed correctly means having no exceptions or errors. But then When I open amutha.txt the file is empty. Why the string is not written in that file? What Mistake I am doing?
My code is:
func getDocumentsDirectory() -> URL {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let documentsDirectory = paths[0]
return documentsDirectory
}
#objc func buttonPressed(sender:UIButton) {
print(sender.titleLabel?.text)
let documentUrl:URL = getDocumentsDirectory()
let fileName=documentUrl.appendingPathComponent("priya.txt", isDirectory: false)
let filePath=fileName.path
print( FileManager.default.fileExists(atPath: filePath))
do {
let string="Amuthapriya"
try string.write(to:fileName, atomically: true, encoding: String.Encoding.utf8)
print("written successfully")
print("filePath: \(filePath)")
} catch {
}
}
Just try to print path of your file in console because you are watching wrong file and check that file if it is available there or not and check content
do {
let string="Amuthapriya"
try string.write(to:fileName, atomically: true, encoding: String.Encoding.utf8)
print("written successfully")
print("filePath: \(filePath)") // check file here
} catch {
}
I manually created a file amutha.txt in the documents folder. But then When I open amutha.txt the file is empty.
But the text is being written to priya.txt.
let fileName=documentUrl.appendingPathComponent("priya.txt", isDirectory: false)
So you are looking in the wrong file.
(Also do not change from file URL to file path string. Use file URL only.)
I am a beginner in iOS development.
I'm copying this by looking at an example of making a file.
override func viewDidLoad() {
super.viewDidLoad()
let fileName = "Test"
let DocumentDirURL = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
let fileURL = DocumentDirURL.appendingPathComponent(fileName).appendingPathExtension("")
let writeString = "write test sting"
do {
try writeString.write(to: fileURL, atomically: true, encoding: String.Encoding.utf8)
} catch _ as NSError {
print("write error")
}
}
My question is that my current code is making and saving a file in document directory.
Can user see this file with user own eyes?
And is there anything else that I need to have permission to execute
this code?
This is an old Swift code. If there is a code that has a better way, please recommend it to me. Please help me a lot. Thank you in advance.
This will create a path of the directory you wanna saveit
let fileManager = NSFileManager.defaultManager()
let urls = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)
if let documentDirectory: NSURL = urls.first as? NSURL {
// This is where the database should be in the documents directory
let finalDatabaseURL = documentDirectory.URLByAppendingPathComponent("items.db")
if finalDatabaseURL.checkResourceIsReachableAndReturnError(nil) {
// The file already exists, so just return the URL
return finalDatabaseURL
} else {
// Copy the initial file from the application bundle to the documents directory
if let bundleURL = NSBundle.mainBundle().URLForResource("items", withExtension: "db") {
let success = fileManager.copyItemAtURL(bundleURL, toURL: finalDatabaseURL, error: nil)
if success {
return finalDatabaseURL
} else {
println("Cant found!")
}
} else {
println("Couldn't find !")
}
}
} else {
println("Couldn't get documents directory!")
}
Edit 2:
I tried Zip from marmelroy (https://github.com/marmelroy/Zip) and it failed on the zip-file created witch ZipArchive too.
Then I created another zip-file with Zip and this one worked fine for unzipping.
There seems to be a problem with ZipArchive for me. I will use Zip instead and thats it for me ...
Thx for the answers !!
End edit 2.
I need to unzip certain files so I manually installed SSZipArchive.
Copied all 3 folders (SSZipArchive, minizip, aes) to project, added #import "ZipArchive.h" in my bridging.h and all builds nicely.
Edit:
Used Carthage as recommended, but same behavior.
End edit.
I use Xcode 8 / Swift 3
After a few tests with no unzipping any file, I created my own zip using SSZipArchive.
let file = "file.txt"
let text = "some text" //just a text
let dir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first
let path = dir?.appendingPathComponent(file)
//writing
do {
try text.write(to: path!, atomically: false, encoding: String.Encoding.utf8)
}
catch {
print("Failed writing")
}
Here I print() the Documentsdirectory: ["file.txt"]
let zipPath = tempZipPath() //tempZipPath is taken from the SSZipArchiveExample except it uses DocumentDirectory instead of Cache...
print("zipPath: \(zipPath)")
print zipPath: /var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
let success = SSZipArchive.createZipFile(atPath: zipPath, withContentsOfDirectory: (dir?.absoluteString)!)
if success {
print("zipped")
} else {
print(" NOT zipped")
}
Again the Documentsdirectories entries: ["93428A1B-E5B6-434F-B049-632B7519B126.zip", "file.txt"]
// this is again taken from the original Example
guard let unzipPath = tempUnzipPath() else {
return
}
print("unzipPath: \(unzipPath)")
print unzipPath: /var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/E4FC7DE6-F21B-46D8-9953-DCBF86E2268E
Reading the entries of this new directory: []
let filePath = zipPath
var fileSize : UInt64 = 0
do {
let attr : NSDictionary? = try FileManager.default.attributesOfItem(atPath: filePath) as NSDictionary?
if let _attr = attr {
fileSize = _attr.fileSize();
print("fileSize: \(fileSize)")
}
} catch {
print("Error: \(error)")
}
this writes 22. I also tried to read the zip-file which works fine
From this part on I was desperate what to do
let url = URL(fileURLWithPath: zipPath)
print("url: \(url)")
print("url.path: \(url.path)")
print("url.absoluteString: \(url.absoluteString)")
print("url.absoluteURL: \(url.absoluteURL)")
print("url.absoluteURL.absoluteString: \(url.absoluteURL.absoluteString)")
The output of these lines look all good for me:
url:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.path:
/var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.absoluteString:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.absoluteURL:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.absoluteURL.absoluteString:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
And then I tried them all (Strings of course. No url allowed)
var success2 = SSZipArchive.unzipFile(atPath: zipPath, toDestination: unzipPath)
if !success2 {
print("zipPath")
}
success2 = SSZipArchive.unzipFile(atPath: url.path, toDestination: unzipPath)
if !success2 {
print("url.path")
}
success2 = SSZipArchive.unzipFile(atPath: url.absoluteString, toDestination: unzipPath)
if !success2 {
print("url.absoluteString")
}
success2 = SSZipArchive.unzipFile(atPath: url.absoluteURL.path, toDestination: unzipPath)
if !success2 {
print("url.absoluteURL.path")
}
And it prints every line, so they all failed. At the end here comes the "long" way with unipFileAtPath. I tried this one too with zipPath, ...
All the same results.
do {
success2 = try SSZipArchive.unzipFileAtPath(url.path, toDestination: unzipPath, overwrite: true, password: nil, delegate: nil)
if !success2 {
return
}
} catch {
print("error \(error)")
print("error \(error.localizedDescription)")
}
error Error Domain=SSZipArchiveErrorDomain Code=-1 "failed to open zip
file" UserInfo={NSLocalizedDescription=failed to open zip file} error
failed to open zip file
Here the to func to get the path-strings. btw. I modified tempZipPath so returns an URL or an URL.path
but hey: I was desperate
func tempZipPath() -> String {
var path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
path += "/\(UUID().uuidString).zip"
return path
}
func tempUnzipPath() -> String? {
var path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
path += "/\(UUID().uuidString)"
let url = URL(fileURLWithPath: path)
do {
try FileManager.default.createDirectory(at: url, withIntermediateDirectories: true, attributes: nil)
} catch {
return nil
}
return url.path
}
Any suggestions? Is there something to consider manually installing SSZipArchive?
The tip "use .path instead of .absoluteString" didn't work for me as u can see above.
a desperate tartsigam
I had the problem, too. If you use url.path instead of url.absolutString, it works.
Thanks to vadian for the hint!
Before zip don't extract file and return false.
After put this in Build Settings / Apple CLang Prepocessing / Preprocessor Macros Debug e Release works here
GCC_PREPROCESSOR_DEFINITIONS: HAVE_INTTYPES_H HAVE_PKCRYPT HAVE_STDINT_H HAVE_WZAES HAVE_ZLIB MZ_ZIP_NO_SIGNING $(inherited)
In my case, using ObjC and manual installation, I forgot to Add the following GCC_PREPROCESSOR_DEFINITIONS:
$(inherited)
HAVE_INTTYPES_H
HAVE_PKCRYPT
HAVE_STDINT_H
HAVE_WZAES
HAVE_ZLIB
After adding these GCC_PREPROCESSOR_DEFINITIONS it worked as expected.