SnapKit_Reference

2017-03-18 08:25:25   0  举报

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SnapKit是一个轻量级的iOS自动布局框架，它基于苹果的Auto Layout和Visual Format Language构建，提供了一种简单、直观的方式来设置和管理视图的约束。使用SnapKit，开发者可以更轻松地实现复杂的界面布局，而无需编写繁琐的代码。通过链式调用的方法，开发者可以快速地为视图添加约束，并在整个应用中复用这些约束。此外，SnapKit还支持动态更新约束，使得在运行时可以轻松地调整布局。总之，SnapKit是一个强大且易用的自动布局工具，对于任何使用Swift进行iOS开发的开发者来说都值得一试。

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internal struct ConstraintAttributes : OptionSet

internal var layoutAttributes:[NSLayoutAttribute] { var attrs = [NSLayoutAttribute]() if (self.contains(ConstraintAttributes.left)) { attrs.append(.left) } ............. #if os(iOS) || os(tvOS) if (self.contains(ConstraintAttributes.firstBaseline)) { attrs.append(.firstBaseline) } ........................... #endif return attrs }

public final class Constraint

public protocol LayoutConstraintItem: class

public class ConstraintMakerFinalizable

internal let description: ConstraintDescription

@discardableResult public func labeled(_ label: String) - ConstraintMakerFinalizable { self.description.label = label return self } public var constraint: Constraint { return self.description.constraint! }

public class ConstraintMakerEditable: ConstraintMakerPriortizable

public func multipliedBy(_ amount: ConstraintMultiplierTarget) - ConstraintMakerEditablepublic func dividedBy(_ amount: ConstraintMultiplierTarget) - ConstraintMakerEditablepublic func offset(_ amount: ConstraintOffsetTarget) - ConstraintMakerEditablepublic func inset(_ amount: ConstraintInsetTarget) - ConstraintMakerEditable

public class ConstraintMaker

public var left: ConstraintMakerExtendable...........public var margins: ConstraintMakerExtendableprivate let item: LayoutConstraintItemprivate var descriptions = [ConstraintDescription]()

extension LayoutConstraintItem

internal func prepare() { if let view = self as? ConstraintView { view.translatesAutoresizingMaskIntoConstraints = false } }internal func add(constraints: [Constraint])internal func remove(constraints: [Constraint])

protocol ConstraintBasicAttributesDSL

ConstraintBasicAttributesDSL

public var left: ConstraintItempublic var top: ConstraintItem。。。。public var edges: ConstraintItem

ConstraintDSL

var target: AnyObject? { get } func setLabel(_ value: String?) func label() - String?

public class ConstraintMakerPriortizable: ConstraintMakerFinalizable

extension ConstraintView : LayoutConstraintItem

public class ConstraintDescription

public struct ConstraintViewDSL

internal let view: ConstraintView

public var target: AnyObject? { return self.view }public func makeConstraints(_ closure: (_ make: ConstraintMaker) - Void)

ConstraintAttributesDSL