创建一个循环以在uiviewcontroller上间隔2个不同的对象 [英] create a loop to space 2 different objects on a uiviewcontroller

问题描述

下面的代码正是我在寻找问题的方法，它只是在uibtton中执行此操作.我想对2个uitextfields和2个uilabels做同样的事情.因此，将textfield转换为uilabel，将textfield转换为uilabel.我认为您只需要更改按钮输入"即可，但是我不知道该如何更改.我希望对象之间的间隔为40，如下所示.

My code below does exactly what I am looking for the problem is it just does this in a uibtton. I would like to do the same thing with 2 uitextfields and 2 uilabels. So textfield to uilabel to textfield to uilabel. I assume you would just have to change "button in" but I dont know what to change it with. I want the objects spaced 40 between each other just like below.

func setConstraints() {
var yPosition: CGFloat = 0

[undoButton, clearButton, color].forEach { button in
    NSLayoutConstraint.activate([
        button.trailingAnchor.constraint(equalTo: view.centerXAnchor, constant :25),
        button.topAnchor.constraint(equalTo: view.centerYAnchor, constant : yPosition),
        button.widthAnchor.constraint(equalToConstant: CGFloat(widthBox)),
        button.heightAnchor.constraint(equalToConstant: 20)
    ])
    yPosition += 40
}

}

推荐答案

只需将您的文本字段和标签按所需顺序放入数组中，并用它替换[undoButton, clearButton, color]部分.从技术上讲，您不需要更改button in部分，因为它只是一个变量名.

Just put your text fields and labels in the desired order in an array, and replace the [undoButton, clearButton, color] part with it. You technically don't need to change the button in part, as it is just a variable name.

[textField1, label1, textField2, label2].forEach { view in
    NSLayoutConstraint.activate([
        view.trailingAnchor.constraint(equalTo: view.centerXAnchor, constant :25),
        view.topAnchor.constraint(equalTo: view.centerYAnchor, constant : yPosition),
        view.widthAnchor.constraint(equalToConstant: CGFloat(widthBox)),
        view.heightAnchor.constraint(equalToConstant: 20)
    ])
    yPosition += 40
}

请注意， UIStackView 可能会使您的生活更加轻松.我建议您看看如何使用它.

Note that UIStackView might make your life much easier. I suggest you have a look at how to use that.

这篇关于创建一个循环以在uiviewcontroller上间隔2个不同的对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！