[英]Why viewWithTag is returning nil
activite1Label as the tag 1 activite1Label 作为标签 1
class StatsViewController: UIViewController {
@IBOutlet weak var activite1Label: UILabel!
@IBOutlet weak var activite2Label: UILabel!
@IBOutlet weak var activite3Label: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
activite1Label.text = activite[0]
activite2Label.text = activite[1]
activite3Label.text = activite[2]
miseAjourTotal()
}
func miseAjourTotal() {
let leLabel = view.viewWithTag(1) as! UILabel
print("leLabel: \(leLabel.text)")
}
}
您的代码中没有任何内容表明标签具有标签 1。您应该转到故事板并检查标签是否具有标签 1 或以编程方式设置标签
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