- status
- If not-null, a method to invoke when the file has been saved to the Camera Album.
On systems without a camera, the Camera Album is the Saved Photos album instead. This can not be changed.
If a non-null value was specified for status then the method is invoked on completion with both the image reference and an if there was an error, a non-null instance of NSError.
This can be used from a background thread.