Sumamary

类似Android的界面传值工具Extra.

Example

For a detailed example, see the Example! To run the example project, clone the repo, and run pod install from the Example directory first.

Example Code

class ViewController: UIViewController {

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        let dest = segue.destination
        
        dest.extra.put(key: "title", value: "ViewController2")
        dest.extra.put(key: "textView", value: "Created by [email protected]")
        dest.extra.put(key: "button", value: "BackButton")
        dest.extra.put(key: "imageView", value: #imageLiteral(resourceName: "button.png"))
        dest.extra.put(key: "progressView", value: Float(0.8))
        dest.extra.put(key: "switch", value: false)
        dest.extra.put(key: "backgroundColor", value: UIColor.white)
        dest.extra.put(key: "progressTintColor", value: UIColor.red)
    }
}

class ViewController2: UIViewController {
    
    @IBOutlet weak var textView: UITextView!
    @IBOutlet weak var button: UIButton!
    @IBOutlet weak var imageView: UIImageView!
    @IBOutlet weak var progressView: UIProgressView!
    @IBOutlet weak var `switch`: UISwitch!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        title                   = extra.get(key: "title")
        textView.text           = extra.get(key: "textView")
        imageView.image         = extra.get(key: "imageView")
        `switch`.isOn           = extra.get(key: "switch") ?? true
        view.backgroundColor    = extra.get(key: "backgroundColor")
        progressView.progress   = extra.get(key: "progressView") ?? 0.1
        progressView.progressTintColor = extra.get(key: "progressTintColor")

        button.setTitle(extra.get(key: "button"), for: .normal)
    }
}

AssociatedObject

extension UIViewController {
    public var example: Int {
        get {
            return extra.get(key: "example") ?? 0
        }
        
        set {
            extra.put(key: "example", value: newValue)
        }
    }
}

Requirements

• Xcode 8.x
• Swift 3.x

Installation

CocoaPods

pod 'Extra2'

Carthage

github "roshanman/Extra"

Author

[email protected]

License

Extra is available under the MIT license. See the LICENSE file for more info.