UIImagePicker URL convert for attributesOfItemAtPath iOS

I've been trying to figure out how to convert a "开发者_运维百科UIImagePickerControllerReferenceURL" into a path that I can use to call the "attributesOfItemAtPath" method of the NSFileManager class.

I tried [NSURL path], but it doesn't convert it into a directory path that the NSFileManager can understand...

Is there some way to do this, or maybe another way of getting the actual path of the file picked with UIImagePicker?

---

What you get is an Assets Library URL. You can use this to get the asset object which you can use to gather relevant information.

ALAssetsLibrary* library = [[ALAssetsLibrary alloc] init];
[library assetForURL:theAssetURL
         resultBlock:^(ALAsset * asset) {
                /* Use the "asset" object to get the details */
            }
        failureBlock:^(NSError * error) {
                /* Error retrieving the asset */
                NSLog(@"%@", [error localizedDescription]);
            }];

You can look at the valueForKey: and defaultRepresentation methods.