Issue setting UIImageView from local image in documents directory

Question

I am trying to load images that I have downloaded using Alamofire to the documents directory. I store the filenames in a Realm database. Once it is time to display the image I take the path to the documents directory and append the filename. This path doesn't seem to work for building a UIImage though.

if let name = playlist.RLMsongs[indexPath.row].name, let imageURL = playlist.RLMsongs[indexPath.row].album?.image?.getImageURL(.SmallImage), let fileName = playlist.RLMsongs[indexPath.row].album?.image?.smallLocalFileName {
    cell.songName.text = name

    let range = imageURL.rangeOfString("http")
    if let theRange = range where theRange.startIndex == imageURL.startIndex { // imageURL starts with "http" (remote url)
        cell.albumImage.sd_setImageWithURL(NSURL(string: imageURL), placeholderImage: UIColor.imageFromColor(UIColor.grayColor())) {
            _ in
            cell.albumImage.fadeIn(completion: nil)
        }
    } else {
        cell.albumImage.image = UIImage(named: fileName) // images still do not load
        // tried this first -> cell.albumImage.sd_setImageWithURL(NSURL(fileURLWithPath: imageURL), placeholderImage: UIColor.imageFromColor(UIColor.grayColor()))
    }
}

Here is the bit that builds the path (imageURL above):

let documentsDir = NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)[0]
let path = documentsDir.URLByAppendingPathComponent(localFile).path
return path

As per TiM's recommendation I checked the value of imageURL on a breakpoint and it looks just fine:

imageURL: "/Users/danielnall/Library/Developer/CoreSimulator/Devices/0B8D64B5-9593-4F86-BBD3-E408682C5C0F/data/Containers/Data/Application/011E4805-40EB-4221-9D7D-1C1D64660186/Documents/75.9226ecd6893cb01a306c974d9d8ffd62803109c1.png"

This is the full path on the simulator and is only missing the file schema (file://) which for the use of NSURL fileURLWithPath should be just fine I think.

Answer 1

I ended up finding the solution to the problem which was unrelated to the direction of this question. Turned out that the issue was in my override of the prepareForReuse method in my UITableViewCell class. Thank you for everyone's suggestions though.