How to save image or video from UIPickerViewController to document directory?

Question

1. Handle selected image or video:

   func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
       print("ok")
   
       if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
           //what to do to save that image
       } else {
           //how to get the video and save
       }
   }
   

2. Save it to the document directory:

   let path = try! NSFileManager.defaultManager().URLForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomain: NSSearchPathDomainMask.UserDomainMask, appropriateForURL: nil, create: false)
   let newPath = path.URLByAppendingPathComponent("image.jpg") //or video.mpg for example
   

How to save that image to following newPath?

Answer 1

• Use following steps to save Image to documents directory

Step 1: Get a path to document directory

let path = try! NSFileManager.defaultManager().URLForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomain: NSSearchPathDomainMask.UserDomainMask, appropriateForURL: nil, create: false)

Step 2: Append FileName in path

let newPath = path.stringByAppendingPathComponent("image.jpg")

Step 3: Decide filetype of Image either JPEG or PNG and convert image to data(byte)

//let pngImageData = UIImagePNGRepresentation(image) // if you want to save as PNG
let jpgImageData = UIImageJPEGRepresentation(image, 1.0)   // if you want to save as JPEG

Step 4: write file to created path

let result = jpgImageData!.writeToFile(newPath, atomically: true)

Add above code into your didFinishPickingImage function.

• Use following func to save video to documents directory

  func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) 
  {
      // *** store the video URL returned by UIImagePickerController *** //
      let videoURL = info[UIImagePickerControllerMediaURL] as! NSURL
  
      // *** load video data from URL *** //
      let videoData = NSData(contentsOfURL: videoURL)
  
      // *** Get documents directory path *** //
      let paths = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)[0]
  
      // *** Append video file name *** //
      let dataPath = documentsDirectory.stringByAppendingPathComponent("/videoFileName.mp4")
  
      // *** Write video file data to path *** //
      videoData?.writeToFile(dataPath, atomically: false)
  }