本文介绍了从 UILabel Swift 中获取 Int的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个问题,有大量按钮以数字作为标签,所以我认为我可以将标签作为整数而不是为每个按钮创建一个动作?!
I have the problem, to have a high amount of buttons which have a number as their label, so i thought i could take the label as an integer instead of creating an action for every button?!
@IBAction func NumberInput(sender: UIButton) {
var input:Int = sender.titleLabel as Int
}
推荐答案
如果你想这样做,你可以使用 将
如:string
转换为 Int
>string.toInt()
If you want to do this, you can convert the string
to an Int
by using string.toInt()
such as:
if let input = sender.titleLabel?.text?.toInt() {
// do something with input
} else {
// The label couldn't be parsed into an int
}
但是,我建议使用 UIView.tag
或子类化 UIButton
并向其添加 Int
属性来完成此操作,在以防您更改标签的显示.
However, I'd suggest either using UIView.tag
or subclassing UIButton
and adding an Int
property to it to accomplish this, in case you ever change the display of your labels.
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