swift 开发笔记 30

self.performSegue(withIdentifier: "ShowResults", sender: self)

 

 

guard let controller = segue.destination as? TagsColorsViewController else {

        fatalError("Storyboard mis-configuration. Controller is not of expected type TagsColorsViewController")

      }

 

tableViewController.data = tags.map {

          TagsColorTableData(label: $0, color: nil)

        }

 

let photoColors = imageColors.flatMap({ (dict) -> PhotoColor? in

                guard let r = dict["r"] as? String,

                let g = dict["g"] as? String,

                let b = dict["b"] as? String,

                    let closestPaletterColor = dict["closest_palette_color"] as? String else{

                     return nil

                }

                

                return PhotoColor(red: Int(r), green:Int(g), blue:Int(b),colorName:closestPaletterColor)

            })

 

    var path : String {

        switch self {

        case .content:

            return "/content"

        case .tags:

            return "/tagging"

        case .colors:

            return "/colors"

        }

    }

 

func upload(image:UIImage, progressCompletion: @escaping (_ percent: Float) -> Void, completion: @escaping (_ tags: [String], _ colors:[PhotoColor]) -> Void) -> Void {}