没有调用Swift Delegate

时间:2016-09-20 14:24:22

标签: ios swift

我已经完成了委托工作所需的所有代码。在我的viewcontroller中: class ViewController: UIViewControllerCustomViewDelegate 我也有这个:

   override func viewDidLoad() {
            super.viewDidLoad()
            let myCustomView = Bundle.main.loadNibNamed("ImageHeaderView", owner: self, options: nil)?[0] as! ImageHeaderView
        myCustomView.delegate = self

        }
func goToNextScene() {
        print("GOTOSCENE2")
            }

在我的自定义视图中,我有这个:

import UIKit

protocol CustomViewDelegate: class {         // make this class protocol so you can create `weak` reference
    func goToNextScene()
}

@available(iOS 10.0, *)
class ImageHeaderView : UIView {

    @IBOutlet weak var followme: UISwitch!
    @IBOutlet weak var profileImage : UIImageView!
    @IBOutlet weak var backgroundImage : UIImageView!

    weak var delegate: CustomViewDelegate?

    override func awakeFromNib() {
        super.awakeFromNib()
        self.backgroundColor = UIColor(hex: "E0E0E0")
        self.profileImage.layer.cornerRadius = self.profileImage.frame.size.height / 2
        self.profileImage.clipsToBounds = true
        self.profileImage.layer.borderWidth = 1
        self.profileImage.layer.borderColor = UIColor.white.cgColor
        //self.profileImage.setRandomDownloadImage(80, height: 80)
        //self.backgroundImage.setRandomDownloadImage(Int(self.frame.size.width), height: 100)
    }
    @IBAction func followme(_ sender: AnyObject) {
         UserDefaults.standard.set(followme.isOn, forKey: "followme")
    }
    @IBAction func logout(_ sender: AnyObject) {
        delegate?.goToNextScene()
        print("GOTOSCENE")
    }
}

没有抛出任何错误但是当我点击/点击按钮时,没有任何反应。它只是打印" GOTOSCENE"。

1 个答案:

答案 0 :(得分:3)

我的感受是

你的问题就在这里

override func viewDidLoad() {
            super.viewDidLoad()
            let myCustomView = Bundle.main.loadNibNamed("ImageHeaderView", owner: self, options: nil)?[0] as! ImageHeaderView
        myCustomView.delegate = self

        }

我认为你已经从storyboard添加了imageHeaderview,在viewdidload中你正在创建ImageHeaderView的新对象并将委托分配给新创建的对象。

尝试插入ImageHeaderView并将委托分配给已出局的对象。

希望这能解决您的问题。