所以我想把这段代码简化成一个简单的for循环。
但是UITextFields和UILabels给了我一些困难的时间。

    @IBOutlet var thingsIUse: UITextField!
    @IBOutlet var orThis: UILabel!

    saveProgress(year: year, season: season, day: "1", value: "\(Int(day1new.text!)! + Int(day1newExtra.text!)!)")
    saveProgress(year: year, season: season, day: "2", value: "\(Int(day2new.text!)! + Int(day2newExtra.text!)!)")
    saveProgress(year: year, season: season, day: "3", value: "\(Int(day3new.text!)! + Int(day3newExtra.text!)!)")
    saveProgress(year: year, season: season, day: "4", value: "\(Int(day4new.text!)! + Int(day4newExtra.text!)!)")
    saveProgress(year: year, season: season, day: "5", value: "\(Int(day5new.text!)! + Int(day5newExtra.text!)!)")
    saveProgress(year: year, season: season, day: "6", value: "\(Int(day6new.text!)! + Int(day6newExtra.text!)!)")
    saveProgress(year: year, season: season, day: "1Taki", value: day1new.text!)
    saveProgress(year: year, season: season, day: "2Taki", value: day2new.text!)
    saveProgress(year: year, season: season, day: "3Taki", value: day3new.text!)
    saveProgress(year: year, season: season, day: "4Taki", value: day4new.text!)
    saveProgress(year: year, season: season, day: "5Taki", value: day5new.text!)
    saveProgress(year: year, season: season, day: "6Taki", value: day6new.text!)

像这样的事情。。。
    for k in 1...10{
        saveProgress(year: year, season: season, day: "\(k)", value: "\(Int(day\(k)new.text!)! + Int(day\(k)newExtra.text!)!)")
        saveProgress(year: year, season: season, day: "\(k)Taki", value: day\(k)new.text!)
    }

有什么建议吗?

最佳答案

你可以用几种方法解决这个问题。一种是使用IBOutlet集合。在swift中,您将它们定义为:

@IBOutlet var dayLabels: [UILabel]!

然后确保进入Xib/Storyboard并通过单击集合名称旁边的小“+”并将其拖动到各个标签来添加对标签的引用。因为这是一个集合,所以可以像这样拖到许多标签上,只要确保按照希望更新的顺序添加它们。
另一种解决方法是,创建希望在运行时动态更新的标签数组,如下所示:
let labelsToUpdate: [UILabel] = [day1new,day2new,day3new,day4new,day5new,day6new]
for k in 0...5 {
    let day = "\(k+1)"
    let label = labelsToUpdate[k]
    ...
}

为了保持代码的干净,还可以进行其他一些优化,但这将是实现所需目标的良好开端。
祝你好运!

关于swift - 快速在每个循环中更改不同的标签labelData,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/51488150/

10-14 21:24
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