我正在开发一个应用程序,请在下面找到我的代码:
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var NameTextLabel: UILabel!
@IBOutlet weak var ExplainTextLabel: UILabel!
@IBOutlet weak var PriceTextLabel: UILabel!
@IBOutlet weak var FeaturesTextLabel: UILabel!
let Features = ["Features Include: Siri acts as a musicologist, Advanced searches..., Works with Apple Music, etc", " Feautres Include: Up to 18 Cores, Thunderbolt 3, 5k Display, etc",
"Feautres Include: AR technology, I messages wont take up storage, A redesinged appstore, etc", "New Faces, Siri Face, Better Pairing Process"]
let Explain = ["Apple Smart Speaker", "Most Powerfull Mac", "The New OS", "Watch OS4"]
let Price = ["At $349", "At $4999", "Free", "Free"]
let Name = ["Homepod", "iMac Pro", "iOS 11", "Watch OS4"]
@IBAction func MoreDidTap(sender: AnyObject) {
let randomNumber = Int(arc4random()) % 4
let NewName = Name [randomNumber]
let NewExplain = Explain [randomNumber]
let NewPrice = Price [randomNumber]
let NewFeatures = Features [randomNumber]
NameTextLabel.text = NewName
ExplainTextLabel.text = NewExplain
PriceTextLabel.text = NewPrice
FeaturesTextLabel.text = NewFeatures
}
}
当我在模拟器中运行应用程序时,我发现单击按钮时什么都不会改变。如果有人知道请帮助我。
最佳答案
您是否将 IBAction
连接到 touchUpInside
事件的 UIButton
?
必须设置一个按钮才能通知事件。我们可以定义一个目标和一个选择器来获取该事件。目标代表处理事件的对象,选择器代表作用于事件的方法。
您可以通过连接 UIButton
(在 Storyboard/Xib 中)和 IBAction
(在类里面)或通过使用 UIButton API 以编程方式来完成此操作 - addTarget(_:action:for:)
关于ios - 按钮不起作用(Swift),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44642244/