我的按钮不起作用，我不知道为什么

Ivo 发表于 Dev

伊沃

我正在尝试制作一个真实或大胆的游戏作为我的第一个项目，我没有出错，但按钮不起作用我一步一步地运行代码，当我按下按钮时，它们不起作用 truthsEng 和 DaresEng 是他们在共享源文件夹中的真理和勇气。

import PlaygroundSupport
import UIKit
let view = UIView()
//adding the baground image
let Game = UIImageView(frame: UIScreen.main.bounds)
Game.image = UIImage(named:"Photo.png")
Game.contentMode = .scaleAspectFill
view.insertSubview(Game, at:0)
let lbl = UILabel(frame: CGRect(x:100 , y:100, width: 300, height: 500))
lbl.text = "test"
lbl.textColor = #colorLiteral(red: 0.6313725709915161, green: 0.6470588445663452, blue: 0.9058823585510254, alpha: 1.0)
Game.addSubview(lbl)
let truthButton = UIButton(frame: CGRect(x:100, y: 100, width: 100, height: 69))
truthButton.layer.cornerRadius = 10
truthButton.backgroundColor = #colorLiteral(red: 0.6325997710227966, green: 0.6475543975830078, blue: 0.905613362789154, alpha: 1.0)
truthButton.setTitle("truth", for: UIControl.State.normal)
Game.addSubview(truthButton)
let dareButton = UIButton(frame: CGRect(x:300, y: 400, width: 100, height: 69))
dareButton.layer.cornerRadius = 10
dareButton.backgroundColor = #colorLiteral(red: 0.6352941393852234, green: 0.6470588445663452, blue: 0.886274516582489, alpha: 1.0)
dareButton.setTitle("dare", for: UIControl.State.normal)
Game.addSubview(dareButton)

class Responder: NSObject{
    @objc func PrintTruthAndChangeBaground() {
        lbl.text = truthsEng.randomElement()
        
    }
    @objc func PrintDareAndChangeBaground() {
        lbl.text = daresEng.randomElement()
        
    }
    
}
let responser = Responder()
truthButton.addTarget(responser, action: #selector(Responder.PrintTruthAndChangeBaground), for:.touchUpInside)
dareButton.addTarget(responser, action: #selector(Responder.PrintDareAndChangeBaground), for: .touchUpInside)

PlaygroundPage.current.liveView = Game

Hao Liang

UIKit UIImageView isUserInteractionEnabled

一个布尔值，用于确定是否忽略用户事件并将其从事件队列中删除。

声明 var isUserInteractionEnabled: Bool { get set }

讨论该属性继承自 UIView 父类。此类将此属性的默认值更改为 false。

您需要将此属性设置为 true。

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