How to get image metadata in ios

Question

I want to display image metadata using ios. Meta data like Aperture, Shutterspeed, Exposure Compensation, ISO, Lens Focal Length, etc. So please help me if anybody has idea

Answer 1

swift 4

static func imageDataProperties(_ imageData: Data) -> NSDictionary? {
    if let imageSource = CGImageSourceCreateWithData(imageData as CFData, nil)
    {
      if let dictionary = CGImageSourceCopyPropertiesAtIndex(imageSource, 0, nil) {
        return dictionary
      }
    }
    return nil
  }