I am using the documents directory of my application to cache images locally, but when I go to access them, they are not updated until I close the app and reopen.
Here is my save:
var readPath = ""
let nsDocumentDirectory = NSSearchPathDirectory.DocumentDirectory
let nsUserDomainMask = NSSearchPathDomainMask.UserDomainMask
if let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true) {
if paths.count > 0 {
if let dirPath = paths[0] as? String {
readPath = dirPath.stringByAppendingPathComponent("\(user).png")
UIImagePNGRepresentation(imageView.image).writeToFile(readPath, atomically: true)
}
}
}
Here is my retrieval:
var readPath = ""
let nsDocumentDirectory = NSSearchPathDirectory.DocumentDirectory
let nsUserDomainMask = NSSearchPathDomainMask.UserDomainMask
if let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true) {
if paths.count > 0 {
if let dirPath = paths[0] as? String {
readPath = dirPath.stringByAppendingPathComponent("\(user).png")
//UIImagePNGRepresentation(imageView.image).writeToFile(readPath, atomically: true)
}
}
}
let cachedImage = UIImage(named: readPath)
if (cachedImage != nil)
{
println("cached")
self.userPictures.append(cachedImage!)
}
For some reason though, it is not until I have reset the application that these resources become available.
Can anyone shed some light on why this could be?
The image that gets returned to cachedImage is an image that I had previously saved into that specific path btw
This may helps you....
let fileManager = NSFileManager.defaultManager()
var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as! String
var getImagePath = paths.stringByAppendingPathComponent("\(fileName).png")
if (fileManager.fileExistsAtPath(getImagePath))
{
println("FILE AVAILABLE");
//Pick Image and Use accordingly
var imageis: UIImage = UIImage(contentsOfFile: getImagePath)!
self.image = imageis // UIImageView Class
let datas: NSData = UIImagePNGRepresentation(imageis)
}
else
{
println("FILE NOT AVAILABLE");
let getImage = UIImage(data: self.data)
self.image = getImage
var filePathToWrite = "\(paths)/\(fileName).png"
var imageData: NSData = UIImagePNGRepresentation(self.image)
fileManager.createFileAtPath(filePathToWrite, contents: imageData, attributes: nil)
}
Check the Project in Github
Related
I am working on UICollectionView fetching gallery images and shown in UICollectionViewCell but i need to shown all images within one single folder.
Is there any solution for this?
You can try this way.Below code is fetch the "Repost" folder from gallery and fetch all the photos of it.
func getImages() {
image = []
let albumName = "Repost" //album name
let fetchOptions = PHFetchOptions()
var assetCollection = PHAssetCollection()
fetchOptions.predicate = NSPredicate(format: "title = %#", albumName)
let collection:PHFetchResult = PHAssetCollection.fetchAssetCollections(with: .album, subtype: .any, options: fetchOptions)
if let _:AnyObject = collection.firstObject{
//found the album
assetCollection = collection.firstObject!
albumFound = true
}
else { albumFound = false
print("album not found")
}
let assets = PHAsset.fetchAssets(in: assetCollection, options: nil) as! PHFetchResult<AnyObject>
assets.enumerateObjects({ (object, count, stop) in
// self.cameraAssets.add(object)
if object.mediaType == .image
{
self.image.append(object as! PHAsset) // for image
}
})
self.image.reverse()
self.imgcollection.reloadData()
}
Don't forgot to import photos framework.
Thanks.
In case you are still struggling to figure out here is the code snippet, good luck
func saveImageToDocumentDirectory(image: UIImage ) {
let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let fileName = "image001.png" // name of the image to be saved
let fileURL = documentsDirectory.appendingPathComponent(fileName)
if let data = UIImageJPEGRepresentation(image, 1.0),!FileManager.default.fileExists(atPath: fileURL.path) {
do {
try data.write(to: fileURL)
print("file saved")
} catch {
print("error saving file:", error)
}
}
}
func loadImageFromDocumentDirectory(nameOfImage : String) -> UIImage {
let nsDocumentDirectory = FileManager.SearchPathDirectory.documentDirectory
let nsUserDomainMask = FileManager.SearchPathDomainMask.userDomainMask
let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
if let dirPath = paths.first {
let imageURL = URL(fileURLWithPath: dirPath).appendingPathComponent(nameOfImage)
let image = UIImage(contentsOfFile: imageURL.path)
return image!
}
return UIImage.init(named: "default.png")!
}
I feel like I am missing something major as I don't receive any errors or null values, but anytime I try to retrieve my image it returns "" because it doesn't exist?
This is how I am passing the image data:
URLSession.shared.dataTask(with: url! as URL, completionHandler:{ (data, response, error) in
//if download error
if error != nil{
print(error!)
return
}
guard let imageData = UIImage(data: data!) else { return }
DispatchQueue.main.async{
self.imgPortrait.image = imageData
ImagePortrait().saveImageDocumentDirectory(image: imageData)
}
The data is displayed on imgPortrait completely fine. Here are the rest of the functions where: /\(userUID)/\(CharacterSelection.sharedInstance.getActiveCharacterName()) is optional. When it goes to retrieve the image and when it saves it I can confirm the paths are exactly the same. I feel like it's how I am saving the image with createFile, but I am unsure.
func saveImageDocumentDirectory(image: UIImage){
if let userUID = Auth.auth().currentUser?.uid{
let fileManager = FileManager.default
let paths = (getDirectoryPath() as NSString).appendingPathComponent("/\(userUID)/\(CharacterSelection.sharedInstance.getActiveCharacterName())/characterPortrait.png")
createDirectory(name: (getDirectoryPath() as NSString) as String)
let imageData = UIImagePNGRepresentation(image)
fileManager.createFile(atPath: paths as String, contents: imageData, attributes: nil)
}
}
func getDirectoryPath() -> String {
let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
let documentsDirectory = paths[0]
return documentsDirectory
}
func getImage() -> String{
if let userUID = Auth.auth().currentUser?.uid{
let fileManager = FileManager.default
let imagePath = (self.getDirectoryPath() as NSString).appendingPathComponent("/\(userUID)/\(CharacterSelection.sharedInstance.getActiveCharacterName())/characterPortrait.png")
if fileManager.fileExists(atPath: imagePath){
return imagePath
}else{
print("No Image")
return ""
}
}
else{
return ""
}
}
func createDirectory(name: String){
let fileManager = FileManager.default
let paths = (getDirectoryPath() as NSString).appendingPathComponent(name)
if !fileManager.fileExists(atPath: paths){
try! fileManager.createDirectory(atPath: paths, withIntermediateDirectories: true, attributes: nil)
}else{
print("Directory is already created.")
}
}
Thanks in advance!
Well after a few hours I figured it out. Looks like the directory wasn't being created. Solved it by:
func saveImageDocumentDirectory(image: UIImage){
if let userUID = Auth.auth().currentUser?.uid{
let fileURL = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true).appendingPathComponent("\(userUID)_\(CharacterSelection.sharedInstance.getActiveCharacterName())_characterPortrait.png")
do {
try UIImagePNGRepresentation(image)?.write(to: fileURL, options: .atomic)
} catch {
print(error)
}
}
}
func getImage() -> UIImage{
if let userUID = Auth.auth().currentUser?.uid{
let nsDocumentDirectory = FileManager.SearchPathDirectory.documentDirectory
let nsUserDomainMask = FileManager.SearchPathDomainMask.userDomainMask
let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
if let dirPath = paths.first
{
let imageURL = URL(fileURLWithPath: dirPath).appendingPathComponent("\(userUID)_\(CharacterSelection.sharedInstance.getActiveCharacterName())_characterPortrait.png")
if let image = UIImage(contentsOfFile: imageURL.path){
return image
}
else{
print("Image isn't found.")
return UIImage(named: "default_portrait.png")!
}
}
else{
print("Image isn't found.")
return UIImage(named: "default_portrait.png")!
}
}
else{
print("Image isn't found.")
return UIImage(named: "default_portrait.png")!
}
}
In my app I am storing an image in local storage and I am saving the path of that image in my database. How can I load the image from that path?
Here is the code I am using in order to save the image:
let myimage : UIImage = UIImage(data: data)!
let fileManager = NSFileManager.defaultManager()
let urls = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)
let documentDirectory = urls[0] as NSURL
print(documentDirectory)
let currentDate = NSDate()
let dateFormatter = NSDateFormatter()
dateFormatter.dateStyle = .NoStyle
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
let convertedDate = dateFormatter.stringFromDate(currentDate)
let imageURL = documentDirectory.URLByAppendingPathComponent(convertedDate)
imageUrlPath = imageURL.absoluteString
print(imageUrlPath)
UIImageJPEGRepresentation(myimage,1.0)!.writeToFile(imageUrlPath, atomically: true)
And this is the path where my image stored
file:///var/mobile/Containers/Data/Application/B2A1EE50-D800-4BB0-B475-6C7F210C913C/Documents/2016-06-01%2021:49:32
This is how i tried to retrieve the image but it's not displaying anything.
let image : String = person?.valueForKey("image_local_path") as! String
print(person!.valueForKey("image_local_path")! as! String)
cell.img_message_music.image = UIImage(contentsOfFile: image)
Folder /B2A1EE50- ... changes every time you run application.
../Application/B2A1EE50-D800-4BB0-B475-6C7F210C913C/Documents/..
Which works for me is to store fileName and get documents folder.
Swift 5
Create getter for directory folder
var documentsUrl: URL {
return FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
}
Save image :
private func save(image: UIImage) -> String? {
let fileName = "FileName"
let fileURL = documentsUrl.appendingPathComponent(fileName)
if let imageData = image.jpegData(compressionQuality: 1.0) {
try? imageData.write(to: fileURL, options: .atomic)
return fileName // ----> Save fileName
}
print("Error saving image")
return nil
}
Load image :
private func load(fileName: String) -> UIImage? {
let fileURL = documentsUrl.appendingPathComponent(fileName)
do {
let imageData = try Data(contentsOf: fileURL)
return UIImage(data: imageData)
} catch {
print("Error loading image : \(error)")
}
return nil
}
Also you can try this.
Check if your path exist
if NSFileManager.defaultManager().fileExistsAtPath(imageUrlPath) {}
Create an URL to your path
let url = NSURL(string: imageUrlPath)
Create data to you URL
let data = NSData(contentsOfURL: url!)
Bind the url to your imageView
imageView.image = UIImage(data: data!)
Final code:
if NSFileManager.defaultManager().fileExistsAtPath(imageUrlPath) {
let url = NSURL(string: imageUrlPath)
let data = NSData(contentsOfURL: url!)
imageView.image = UIImage(data: data!)
}
This code works for me
func getImageFromDir(_ imageName: String) -> UIImage? {
if let documentsUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first {
let fileURL = documentsUrl.appendingPathComponent(imageName)
do {
let imageData = try Data(contentsOf: fileURL)
return UIImage(data: imageData)
} catch {
print("Not able to load image")
}
}
return nil
}
Swift 4:
if FileManager.default.fileExists(atPath: imageUrlPath) {
let url = NSURL(string: imageUrlPath)
let data = NSData(contentsOf: url! as URL)
chapterImage.image = UIImage(data: data! as Data)
}
Replace absoluteString with path
let myimage : UIImage = UIImage(data: data)!
let fileManager = NSFileManager.defaultManager()
let urls = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)
let documentDirectory = urls[0] as NSURL
print(documentDirectory)
let currentDate = NSDate()
let dateFormatter = NSDateFormatter()
dateFormatter.dateStyle = .NoStyle
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
let convertedDate = dateFormatter.stringFromDate(currentDate)
let imageURL = documentDirectory.URLByAppendingPathComponent(convertedDate)
imageUrlPath = imageURL.path
print(imageUrlPath)
UIImageJPEGRepresentation(myimage,1.0)!.writeToFile(imageUrlPath, atomically: true)
This sample code may save someone some typing,
write an UIImage to disk in your own directory:
IM = UIImage, your image. for example, IM = someUIView.image or from the camera
let newPhotoFileName = randomNameString() + ".jpeg"
let imagePath = checkedImageDirectoryStringPath() + "/" + newPhotoFileName
let imData = UIImageJPEGRepresentation(IM, 0.20)
FileManager.default.createFile(atPath: imagePath, contents: imData, attributes: nil)
print("saved at filename \(newPhotoFileName)")
later to read that image ...
.. and convert it back to a UIImage as in a UIImageView
NAME = that filename, like jahgfdfs.jpg
let p = checkedImageDirectoryStringPath() + "/" + NAME
devCheckExists(fullPath: p)
var imageData: Data? = nil
do {
let u = URL(fileURLWithPath: p)
imageData = try Data(contentsOf: u)
}
catch {
print("catastrophe loading file?? \(error)")
return
}
// and then to "make that an image again"...
imageData != nil {
picture.image = UIImage(data: imageData!)
print("that seemed to work")
}
else {
print("the imageData is nil?")
}
// or for example...
Alamofire.upload(
multipartFormData: { (multipartFormData) in
multipartFormData.append(imageData!,
withName: "file", fileName: "", mimeType: "image/jpeg")
...
Here are the extremely handy functions used above...
func checkedImageDirectoryStringPath()->String {
// create/check OUR OWN IMAGE DIRECTORY for use of this app.
let paths = NSSearchPathForDirectoriesInDomains(
.documentDirectory, .userDomainMask, true)
if paths.count < 1 {
print("some sort of disaster finding the our Image Directory - giving up")
return "x"
// any return will lead to disaster, so just do that
// (it will then gracefully fail when you "try" to write etc)
}
let docDirPath: String = paths.first!
let ourDirectoryPath = docDirPath.appending("/YourCompanyName")
// so simply makes a directory called "YourCompanyName"
// which will be there for all time, for your use
var ocb: ObjCBool = true
let exists = FileManager.default.fileExists(
atPath: ourDirectoryPath, isDirectory: &ocb)
if !exists {
do {
try FileManager.default.createDirectory(
atPath: ourDirectoryPath,
withIntermediateDirectories: false,
attributes: nil)
print("we did create our Image Directory, for the first time.")
// never need to again
return ourDirectoryPath
}
catch {
print(error.localizedDescription)
print("disaster trying to make our Image Directory?")
return "x"
// any return will lead to disaster, so just do that
}
}
else {
// already exists, as usual.
return ourDirectoryPath
}
}
and
func randomNameString(length: Int = 7)->String{
enum s {
static let c = Array("abcdefghjklmnpqrstuvwxyz12345789".characters)
static let k = UInt32(c.count)
}
var result = [Character](repeating: "a", count: length)
for i in 0..<length {
let r = Int(arc4random_uniform(s.k))
result[i] = s.c[r]
}
return String(result)
}
and
func devCheckExists(fullPath: String) {
var ocb: ObjCBool = false
let itExists = FileManager.default.fileExists(atPath: fullPath, isDirectory: &ocb)
if !itExists {
// alert developer. processes will fail at next step
print("\n\nDOES NOT EXIST\n\(fullPath)\n\n")
}
}
This is working for me and I think is a fast and clean way to do it.
Swift 5.0
let fileManager = NSFileManager.defaultManager()
let urls = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)
let documentDirectory = urls[0] as NSURL
print(documentDirectory)
let currentDate = NSDate()
let dateFormatter = NSDateFormatter()
dateFormatter.dateStyle = .NoStyle
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
let convertedDate = dateFormatter.stringFromDate(currentDate)
let imageURL = documentDirectory.URLByAppendingPathComponent(convertedDate)
let imageData = try? Data(contentsOf: imageUrl)
let image = UIImage(data: imageData!)
Where "imageUrl" is the value of your imageURL from documents folder. And "image" is the resulting image you can use anywhere you need.
1.cell.image.sd_setShowActivityIndicatorView(true)
2.cell.image.sd_setIndicatorStyle(.gray)
3.cell.image.image = UIImage(contentsOfFile: urlString!)
Say I were using this code to save an image to the documents directroy
let nsDocumentDirectory = NSSearchPathDirectory.DocumentDirectory
let nsUserDomainMask = NSSearchPathDomainMask.UserDomainMask
if let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true) {
if paths.count > 0 {
if let dirPath = paths[0] as? String {
let readPath = dirPath.stringByAppendingPathComponent("Image.png")
let image = UIImage(named: readPath)
let writePath = dirPath.stringByAppendingPathComponent("Image2.png")
UIImagePNGRepresentation(image).writeToFile(writePath, atomically: true)
}
}
}
How would I then retrive it? Keeping in mind than in iOS8 the exact path changes often
You are finding the document directory path at runtime for writing the image, for reading it back, you can use the exact logic:
Swift 3 and Swift 4.2
let nsDocumentDirectory = FileManager.SearchPathDirectory.documentDirectory
let nsUserDomainMask = FileManager.SearchPathDomainMask.userDomainMask
let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
if let dirPath = paths.first
{
let imageURL = URL(fileURLWithPath: dirPath).appendingPathComponent("Image2.png")
let image = UIImage(contentsOfFile: imageURL.path)
// Do whatever you want with the image
}
Swift 2
let nsDocumentDirectory = NSSearchPathDirectory.DocumentDirectory
let nsUserDomainMask = NSSearchPathDomainMask.UserDomainMask
if let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
{
if paths.count > 0
{
if let dirPath = paths[0] as? String
{
let readPath = dirPath.stringByAppendingPathComponent("Image2.png")
let image = UIImage(contentsOfFile: readPath)
// Do whatever you want with the image
}
}
}
Better as an extension.
extension URL {
static var documentsDirectory: URL {
let documentsDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
return try! documentsDirectory.asURL()
}
static func urlInDocumentsDirectory(with filename: String) -> URL {
return documentsDirectory.appendingPathComponent(filename)
}
}
Used like this:
let path = URL.urlInDocumentsDirectory(with: filename).path
let image = UIImage(contentsOfFile: path)
Load multiple images from the folder or directory. - Swift 4
Here's the image attached to show, what we want to achieve in the given below code.
Here's the code to find the multiple images from the folder in documents directory. I have written one method to do the same.
In the code we are passing the "Folder Name" (ie. Red) and getting the contents of that directory. In return we got the array of images name.
static func loadImagesFromAlbum(folderName:String) -> [String]{
let nsDocumentDirectory = FileManager.SearchPathDirectory.documentDirectory
let nsUserDomainMask = FileManager.SearchPathDomainMask.userDomainMask
let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
var theItems = [String]()
if let dirPath = paths.first
{
let imageURL = URL(fileURLWithPath: dirPath).appendingPathComponent(folderName)
do {
theItems = try FileManager.default.contentsOfDirectory(atPath: imageURL.path)
return theItems
} catch let error as NSError {
print(error.localizedDescription)
return theItems
}
}
return theItems
}
Here's the result of given code.
Hope it helps.
Thanks
Swift 2
If you want to get a file from your document directory in Swift 2:
let path: String? = NSBundle.mainBundle().pathForResource("imageName", ofType: "png", inDirectory: "DirectoryName/Images")
let imageFromPath = UIImage(contentsOfFile: path!)!
self.myImage.image = imageFromPath
Hope that helps somebody
// --------------------------------------------------------
// MARK:- Document Directory
// --------------------------------------------------------
///# Get Data from document directory #///
private func getDocumentData(){
///# Path #///
let folderPath = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString).appendingPathComponent("MyZipFiles") /// * folder *///
let filePath = URL(fileURLWithPath: folderPath).appendingPathComponent("\(self.id)/\(self.titleVideo)") ///* inside folder all files *///
print(filePath)
///# Get JsonFile from Directory with alamofire #///
let jsonFilePath = URL(fileURLWithPath: folderPath).appendingPathComponent("\(self.id)/\(self.titleVideo)/python.json") ///* inside filename *///
if (try! jsonFilePath.checkResourceIsReachable()) {
print("file exist")
Alamofire.request(jsonFilePath, method: .get, parameters: nil).responseData { (response) in
guard let data = response.data else { return }
do{
let json = try SwiftyJSON.JSON(data: data)
let results = json["images"]
for arr in results.arrayValue{
self.arrImageData.append(Images(json: arr))
}
self._pickerCollectionView.reloadData()
print(self.arrImageData)
}catch{
print(error.localizedDescription)
}
}
///# Back Video #///
let backVideoPath = URL(fileURLWithPath: folderPath).appendingPathComponent("\(self.id)/\(self.titleVideo)/background_video.mp4") ///* inside filename *///
print(backVideoPath)
///# Output Video #///
let outputPath = URL(fileURLWithPath: folderPath).appendingPathComponent("\(self.id)/\(self.titleVideo)/output.mp4")
print(outputPath)
///# Get images string from documentdirectory #///
do {
let imagesData = try FileManager.default.contentsOfDirectory(atPath: filePath.path) ///* Base Path to find Image *///
///# for loop to append path to find saved images and fill image array #///
for imgStr in imagesData{
if imgStr.hasPrefix("img"){
imagesArr.append(imgStr)
print(imagesArr)
let document = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true).appendingPathComponent("MyZipFiles")
print(document)
let loadImage = document.appendingPathComponent("\(self.id)/\(self.titleVideo)")
let imgUrl = loadImage.appendingPathComponent(imgStr, isDirectory: true)
print(imgUrl.path)
if let data = UIImage(named: imgStr)?.pngData() ,
!FileManager.default.fileExists(atPath: imgUrl.path){
do{
///* write data to convert string images into url in document folder *///
try data.write(to: imgUrl)
print("Image Add Successfully")
Log.debug(imgStr)
}
catch{
print("Image Not Added")
}
}
///* append written url into array of images *///
imgArr.append(imgUrl)
}
}
}
catch let err{
print(err.localizedDescription)
}
}
}
I am trying to save data to a plist file in swift, but the data isn't showing up as it was saved when the plist is read. This is the code I was using.
var documentsDirectory = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as NSString
var path : NSString = documentsDirectory.stringByAppendingPathComponent("data.plist")
var data : NSMutableDictionary = NSMutableDictionary(contentsOfFile: path)
data.setObject(self.object, forKey: "key")
data.writeToFile(path, atomically: true)
Edit: I've heard that the best way to do this is write to the documents directory, so my question would be how should I write to a file in that directory?
Apparently the file is not in a writable location, so I created it in the documents directory.
var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as String
var path = paths.stringByAppendingPathComponent("data.plist")
var fileManager = NSFileManager.defaultManager()
if (!(fileManager.fileExistsAtPath(path)))
{
var bundle : NSString = NSBundle.mainBundle().pathForResource("data", ofType: "plist")
fileManager.copyItemAtPath(bundle, toPath: path, error:nil)
}
data.setObject(object, forKey: "object")
data.writeToFile(path, atomically: true)
Then, it has to be read from the documents directory.
var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as String
var path = paths.stringByAppendingPathComponent("data.plist")
let save = NSDictionary(contentsOfFile: path)
Swift 3:
func loadData() {
let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true) as NSArray
let documentDirectory = paths[0] as! String
let path = documentDirectory.appending("myData.plist")
let fileManager = FileManager.default
if(!fileManager.fileExists(atPath: path)){
if let bundlePath = Bundle.main.path(forResource: "myData", ofType: "plist"){
let result = NSMutableDictionary(contentsOfFile: bundlePath)
print("Bundle file myData.plist is -> \(result?.description)")
do{
try fileManager.copyItem(atPath: bundlePath, toPath: path)
}catch{
print("copy failure.")
}
}else{
print("file myData.plist not found.")
}
}else{
print("file myData.plist already exits at path.")
}
let resultDictionary = NSMutableDictionary(contentsOfFile: path)
print("load myData.plist is ->\(resultDictionary?.description)")
let myDict = NSDictionary(contentsOfFile: path)
if let dict = myDict{
myItemValue = dict.object(forKey: myItemKey) as! String?
txtValue.text = myItemValue
}else{
print("load failure.")
}
}
Read and Write plist file in swift
Check in Xcode 10 swift 4.1
//TODO: for wtite in .plist file
let docsBaseURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let customPlistURL = docsBaseURL.appendingPathComponent("custom.plist")
print(customPlistURL.absoluteString)
let dic:[String:Any] = ["key":"val"]
// Swift Dictionary To Data.
do {
let data = try PropertyListSerialization.data(fromPropertyList: dic, format: PropertyListSerialization.PropertyListFormat.binary, options: 0)
do {
try data.write(to: customPlistURL, options: .atomic)
print("Successfully write")
}catch (let err){
print(err.localizedDescription)
}
}catch (let err){
print(err.localizedDescription)
}
Use writeToFile:options:error: and see what the error says:
var error: NSError?
var bytes = NSKeyedArchiver.archivedDataWithRootObject(data)
if !bytes.writeToFile(path, options: nil, error: &error) {
if let actualError = error {
println(actualError)
}
}
struct Plist {
enum PlistError: ErrorType {
case FileNotWritten
case FileDoesNotExist
}
let name:String
var sourcePath:String? {
guard let path = NSBundle.mainBundle().pathForResource(name, ofType: "plist") else { return .None }
return path
}
var destPath:String? {
guard sourcePath != .None else { return .None }
let dir = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]
return (dir as NSString).stringByAppendingPathComponent("\(name).plist")
}
init?(name:String) {
self.name = name
let fileManager = NSFileManager.defaultManager()
guard let source = sourcePath else { return nil }
guard let destination = destPath else { return nil }
guard fileManager.fileExistsAtPath(source) else { return nil }
if !fileManager.fileExistsAtPath(destination) {
do {
try fileManager.copyItemAtPath(source, toPath: destination)
} catch let error as NSError {
print("Unable to copy file. ERROR: \(error.localizedDescription)")
return nil
}
}
}
func getValuesInPlistFile() -> NSDictionary?{
let fileManager = NSFileManager.defaultManager()
if fileManager.fileExistsAtPath(destPath!) {
guard let dict = NSDictionary(contentsOfFile: destPath!) else { return .None }
return dict
} else {
return .None
}
}
func getMutablePlistFile() -> NSMutableDictionary?{
let fileManager = NSFileManager.defaultManager()
if fileManager.fileExistsAtPath(destPath!) {
guard let dict = NSMutableDictionary(contentsOfFile: destPath!) else { return .None }
return dict
} else {
return .None
}
}
func addValuesToPlistFile(dictionary:NSDictionary) throws {
let fileManager = NSFileManager.defaultManager()
if fileManager.fileExistsAtPath(destPath!) {
if !dictionary.writeToFile(destPath!, atomically: false) {
print("File not written successfully")
throw PlistError.FileNotWritten
}
} else {
throw PlistError.FileDoesNotExist
}
}
}
Now, implement below in your view controller.
if let plist = Plist(name: "plist file name") {
let dict = plist.getMutablePlistFile()!
dict["key"] = value
do {
try plist.addValuesToPlistFile(dict)
} catch {
print(error)
}
print(plist.getValuesInPlistFile())
} else {
print("Unable to get Plist")
}
From your Information Property List
Key
Privacy - Photo Library Additions Usage Description
Type
String
Value
"Your App Name" would like to access the photo gallery to manage your profile picture
updated swift code of Rebeloper:
let BedroomFloorKey = "BedroomFloor"
let BedroomWallKey = "BedroomWall"
var bedroomFloorID: AnyObject = 101
var bedroomWallID: AnyObject = 101
func saveGameData()
{
let paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true) as NSArray
let documentsDirectory = paths.objectAtIndex(0) as! NSString
let path = documentsDirectory.stringByAppendingPathComponent("GameData.plist")
let dict: NSMutableDictionary = ["XInitializerItem": "DoNotEverChangeMe"]
//saving values
dict.setObject(bedroomFloorID, forKey: BedroomFloorKey)
dict.setObject(bedroomWallID, forKey: BedroomWallKey)
//...
//writing to GameData.plist
dict.writeToFile(path, atomically: false)
let resultDictionary = NSMutableDictionary(contentsOfFile: path)
print("Saved GameData.plist file is --> \(resultDictionary?.description)")
self.loadGameData()
}//eom
func loadGameData() {
// getting path to GameData.plist
let paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true) as NSArray
let documentsDirectory = paths[0] as! NSString
let path = documentsDirectory.stringByAppendingPathComponent("GameData.plist")
// let path = documentsDirectory.stringByAppendingPathComponent("GameData.plist")
let fileManager = NSFileManager.defaultManager()
//check if file exists
if(!fileManager.fileExistsAtPath(path))
{
// If it doesn't, copy it from the default file in the Bundle
if let bundlePath = NSBundle.mainBundle().pathForResource("GameData", ofType: "plist")
{
let resultDictionary = NSMutableDictionary(contentsOfFile: bundlePath)
print("Bundle GameData.plist file is --> \(resultDictionary?.description)")
do
{
try fileManager.copyItemAtPath(bundlePath, toPath: path)
print("copy")
}
catch _
{
print("error failed loading data")
}
}
else
{
print("GameData.plist not found. Please, make sure it is part of the bundle.")
}
}
else
{
print("GameData.plist already exits at path.")
// use this to delete file from documents directory
//fileManager.removeItemAtPath(path, error: nil)
}
let resultDictionary = NSMutableDictionary(contentsOfFile: path)
print("Loaded GameData.plist file is --> \(resultDictionary?.description)")
let myDict = NSDictionary(contentsOfFile: path)
if let dict = myDict {
//loading values
bedroomFloorID = dict.objectForKey(BedroomFloorKey)!
bedroomWallID = dict.objectForKey(BedroomWallKey)!
//...
}
else
{
print("WARNING: Couldn't create dictionary from GameData.plist! Default values will be used!")
}
}//eom