CODEWITHSUNDEEP
iosswiftnsfilemanager
LoganHenderson
LoganHenderson

Reputation: 1442

NSFileManager Failing on create file

Here are my functions to save an image.

static func getDirectoryPath() -> String {
    let path = (NSSearchPathForDirectoriesInDomains(.picturesDirectory, .userDomainMask, true))[0]
    return path
}

static func savePhoto(with path: String, image: UIImage) {
    let fM = FileManager.default
    let path = getDirectoryPath() + path
    let data = UIImageJPEGRepresentation(image, 0.5)
    let success = fM.createFile(atPath: path, contents: data, attributes: nil)
    print("File creation was \(success)")
}

and then I'm calling it like this

      let path = "/SpotCheck_\(spot.name)_Photo\(indx).jpg"
      PhotoManager.savePhoto(with: path, image: photo)

When I call create file is returns false every time and the photo is not saved.

EDIT: The problem was the second line needed to be documentDirectory instead of picturesDirectory. As shown below:

    let path = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true))[0]

Upvotes: 1

Views: 1188

Answers (1)

rmaddy
rmaddy

Reputation: 318774

iOS apps run in a sandbox. You can't write to the Pictures folder.

If you want to add a picture to the user's photo library then use PHPhotoLibrary or just UIImageWriteToSavedPhotosAlbum.

If you simply want to save the image within your own app then store the file in the Documents folder.

FYI - when using NSSearchPathForDirectoriesInDomains in iOS, the only useful directories are:

  • libraryDirectory
  • documentDirectory
  • cachesDirectory
  • applicationSupportDirectory

All the others are only useful in macOS.

Upvotes: 5

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