Swift - Write Image from URL to Local File

Question

I\'ve been learning swift rather quickly, and I\'m trying to develop an OS X application that downloads images.

I\'ve been able to parse the JSON I\'m looking for into a

Answer 1

Update for swift 5

just change filename.png to something else

func writeImageToDocs(image:UIImage){
    let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as String

    let destinationPath = URL(fileURLWithPath: documentsPath).appendingPathComponent("filename.png")

    debugPrint("destination path is",destinationPath)

    do {
        try image.pngData()?.write(to: destinationPath)
    } catch {
        debugPrint("writing file error", error)
    }
}

func readImageFromDocs()->UIImage?{
    let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as String

    let filePath = URL(fileURLWithPath: documentsPath).appendingPathComponent("filename.png").path
    if FileManager.default.fileExists(atPath: filePath) {
        return UIImage(contentsOfFile: filePath)
    } else {
        return nil
    }
}