Get image from documents directory swift

Question

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

Answer 1

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          }      } } 

Answer 2

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)