Ios 按钮不工作(Swift)
我正在开发一个应用程序,请查找以下我的代码:Ios 按钮不工作(Swift),ios,swift,button,Ios,Swift,Button,我正在开发一个应用程序,请查找以下我的代码: import UIKit class ViewController: UIViewController { @IBOutlet weak var NameTextLabel: UILabel! @IBOutlet weak var ExplainTextLabel: UILabel! @IBOutlet weak var PriceTextLabel: UILabel! @IBOutlet weak var FeaturesTextLabel:
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,我发现当单击按钮时,没有任何变化。如果有人知道,请帮助我。您是否已将
iAction
连接到触摸屏内事件的ui按钮
必须为要通知的事件设置按钮。我们可以定义一个目标和一个选择器来恢复该事件。目标表示处理事件的对象,选择器表示作用于事件的方法
您可以通过连接UIButton
(在故事板/Xib中)和iAction
(在课堂上)或者通过编程方式,使用UIButton API-addTarget(quo:action:for:)
您的代码运行良好
检查此步骤
第1步:-在故事板中检查是否设置了按钮发送事件(如Touchupinside)?
第二步:-在MoreDidTap功能中输入打印,如果它工作,甚至不改变任何东西,
第3步:-检查您的所有标签引用出口是否正确地从故事板中给出?您是否在moredittap
中的代码中设置了断点?它被调用了吗?标签和按钮事件绑定正确还是不检查一次?