Saving image and then loading it in Swift (iOS)
<p>I am saving an image using saveImage.</p>

<pre><code>func saveImage (image: UIImage, path: String ) -&gt; Bool{

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

    print("!!!saving image at:  \(path)")

    let result = pngImageData!.writeToFile(path, atomically: true)

    return result
}
</code></pre>

<h2>New info:</h2>

<p>Saving file does not work properly ("[-] ERROR SAVING FILE" is printed)--</p>

<pre><code>            // save your image here into Document Directory
        let res = saveImage(tempImage, path: fileInDocumentsDirectory("abc.png"))
        if(res == true){
            print ("[+] FILE SAVED")
        }else{
            print ("[-] ERROR SAVING FILE")
        }
</code></pre>

<p>Why doesn't the saveImage function save the image? Access rights? </p>

<h2>Older info:</h2>

<p>The debug info says: </p>

<pre><code>!!!saving image at:  file:///var/mobile/Applications/BDB992FB-E378-4719-B7B7-E9A364EEE54B/Documents/tempImage
</code></pre>

<p>Then I retrieve this location using</p>

<pre><code>fileInDocumentsDirectory("tempImage")
</code></pre>

<p>The result is correct. </p>

<p>Then I am loading the file using this path</p>

<pre><code>    let image = UIImage(contentsOfFile: path)

    if image == nil {

        print("missing image at: \(path)")
    }else{
        print("!!!IMAGE FOUND at: \(path)")
    }
</code></pre>

<p>The path is correct, but the message is "missing image at..". Is the file somehow inaccessible or not stored? What can be a reason for this behavior?</p>

<p>I am testing this code on iphone 4 with ios 7 and iphone 5 with ios 7 simulator. </p>

<p>Edit:
1. The fileInDocumentsDirectory function</p>

<pre><code>func fileInDocumentsDirectory(filename: String) -&gt; String {

    let documentsURL = NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)[0]
    let fileURL = documentsURL.URLByAppendingPathComponent(filename).absoluteString
    return fileURL        
}
</code></pre>