KoalaTeaAutoLayout 0.1.1

KoalaTeaAutoLayout 0.1.1

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由 Craig Holliday 维护。

KoalaTeaAutoLayout 0.1.1

  • 由
  • Craig Holliday

KoalaTeaAutoLayout

CI Status Version License Platform

在 John Sundell 的博客文章 Building DSLs in Swift 上建立的一个基于 John Sundell 在该博客文章中卓越工作的自定义 AutoLayout DSL 包装器。

示例

要运行示例项目，克隆仓库，然后从 Example 目录首先运行 pod install

要求

iOS 11.0+

安装

KoalaTeaAutoLayout 通过 CocoaPods 提供。要安装它，只需将以下行添加到您的 Podfile 中

pod 'KoalaTeaAutoLayout'

用法

始终要首先导入

import KoalaTeaAutoLayout

然后您可以像这样使用库

let layoutView = UIView()
self.view.addSubview(layoutView)
layoutView.backgroundColor = .red
layoutView.layout {
    $0.top == self.view.safeAreaLayoutGuide.topAnchor
    $0.leading == self.view.leadingAnchor + 20
    $0.trailing == self.view.trailingAnchor - 20
    $0.height.equal(to: self.view.heightAnchor, multiplier: 0.1)
}

或者您可以将约束返回并随意激活/禁用它们

var constraints1: [NSLayoutConstraint] = []
var constraints2: [NSLayoutConstraint] = []

self.view.addSubview(layoutView)
layoutView.backgroundColor = .blue
constraints1 = layoutView.returnedLayout {
    return [
        $0.centerXAnchor == self.view.centerXAnchor,
        $0.bottom == self.view.safeAreaLayoutGuide.bottomAnchor,
        $0.height == 80,
        $0.width == $0.height + 100,
    ]
}

constraints2 = layoutView.returnedLayout {
    return [
        $0.top == layoutView2.bottomAnchor,
        $0.centerXAnchor == self.view.centerXAnchor,
        $0.height == 80,
        $0.width == $0.height + 100,
    ]
}
constraints2.deactivateAll()

animate()

func animate() {
    DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
        self.constraints1.deactivateAll()
        self.constraints2.activateAll()

        UIView.animate(withDuration: 0.5, animations: {
            self.view.layoutIfNeeded()
        }, completion: { _ in
            DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
                self.constraints2.deactivateAll()
                self.constraints1.activateAll()

                UIView.animate(withDuration: 0.5, animations: {
                    self.view.layoutIfNeeded()
                }, completion: { _ in
                    self.animate()
                })
            }
        })
    }
}

还为常用的用例准备了方便的函数。

let edgesToSuperview = UIView()
edgesToSuperview.constrainEdgesToSuperview()

let centerToSuperview = UIView()
centerToSuperview.constrainCenterToSuperview()

let edgesToAnotherView = UIView()
edgesToAnotherView.constrainEdges(to: centerToSuperview)

贡献

打开问题报告。

打开一个PR。

或者给我发邮件，我会回复你。

作者

Craig Holliday

电子邮件：[email protected]

推特：https://twitter.com/TheMrHolliday

许可证

KoalaTeaAutoLayout遵循MIT许可证。有关更多信息，请参阅LICENSE文件。