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Material
Commit 9c040edc by M. Porooshani
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Updated MaterialLayout with modern syntax

parent d2d0214f
Showing with 64 additions and 52 deletions
Sources/iOS/MaterialLayout.swift
...@@ -32,118 +32,130 @@ import UIKit ...@@ -32,118 +32,130 @@ import UIKit
public struct MaterialLayout { public struct MaterialLayout {
/// Width /// Width
public static func width(parent: UIView, child: UIView, width: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func width(parent: UIView, child: UIView, width: CGFloat = 0) {
let metrics: Dictionary<String, AnyObject> = ["width" : width] prepareForConstraint([child])
let views: Dictionary<String, AnyObject> = ["child" : child] parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .Width, multiplier: 1.0, constant: width))
parent.addConstraints(constraint("H:[child(width)]", options: options, metrics: metrics, views: views))
} }
/// Height /// Height
public static func height(parent: UIView, child: UIView, height: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func height(parent: UIView, child: UIView, height: CGFloat = 0) {
let metrics: Dictionary<String, AnyObject> = ["height" : height] prepareForConstraint([child])
let views: Dictionary<String, AnyObject> = ["child" : child] parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .Height, multiplier: 1.0, constant: height))
parent.addConstraints(constraint("V:[child(height)]", options: options, metrics: metrics, views: views))
} }
/// Size /// Size
public static func size(parent: UIView, child: UIView, width: CGFloat = 0, height: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func size(parent: UIView, child: UIView, width: CGFloat = 0, height: CGFloat = 0) {
MaterialLayout.width(parent, child: child, width: width) MaterialLayout.width(parent, child: child, width: width)
MaterialLayout.height(parent, child: child, height: height) MaterialLayout.height(parent, child: child, height: height)
} }
/// AlignToParentHorizontally /// AlignToParentHorizontally
public static func alignToParentHorizontally(parent: UIView, children: Array<UIView>, left: CGFloat = 0, right: CGFloat = 0, spacing: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignToParentHorizontally(parent: UIView, children: Array<UIView>, left: CGFloat = 0, right: CGFloat = 0, spacing: CGFloat = 0) {
if 0 < children.count { prepareForConstraint(children)
var format: String = "H:|-(left)-" if 0 < children.count {
var i: Int = 1 parent.addConstraint(NSLayoutConstraint(item: children[0], attribute: .Left, relatedBy: .Equal, toItem: parent, attribute: .Left, multiplier: 1.0, constant: left))
var views: Dictionary<String, UIView> = Dictionary<String, UIView>() if 1 < children.count {
for v in children { for i in 1 ... (children.count - 1) {
let k: String = "view\(i)" parent.addConstraint(NSLayoutConstraint(item: children[i], attribute: .Left, relatedBy: .Equal, toItem: children[i-1], attribute: .Right, multiplier: 1.0, constant: spacing))
i += 1 parent.addConstraint(NSLayoutConstraint(item: children[i], attribute: .Width, relatedBy: .Equal, toItem: children[0], attribute: .Width, multiplier: 1.0, constant: 0.0))
views[k] = v }
format += i > children.count ? "[\(k)(==view1)]-(right)-|" : "[\(k)(==view1)]-(spacing)-" }
} parent.addConstraint(NSLayoutConstraint(item: children[children.count-1], attribute: .Right, relatedBy: .Equal, toItem: parent, attribute: .Right, multiplier: 1.0, constant: -right))
parent.addConstraints(constraint(format, options: options, metrics: ["left" : left, "right": right, "spacing": spacing], views: views))
} }
} }
/// AlignToParentVertically /// AlignToParentVertically
public static func alignToParentVertically(parent: UIView, children: Array<UIView>, top: CGFloat = 0, bottom: CGFloat = 0, spacing: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignToParentVertically(parent: UIView, children: Array<UIView>, top: CGFloat = 0, bottom: CGFloat = 0, spacing: CGFloat = 0) {
if 0 < children.count { prepareForConstraint(children)
var format: String = "V:|-(top)-" if 0 < children.count {
var i: Int = 1 parent.addConstraint(NSLayoutConstraint(item: children[0], attribute: .Top, relatedBy: .Equal, toItem: parent, attribute: .Top, multiplier: 1.0, constant: top))
var views: Dictionary<String, UIView> = Dictionary<String, UIView>() if 1 < children.count {
for v in children { for i in 1 ... (children.count - 1) {
let k: String = "view\(i)" parent.addConstraint(NSLayoutConstraint(item: children[i], attribute: .Top, relatedBy: .Equal, toItem: children[i-1], attribute: .Bottom, multiplier: 1.0, constant: spacing))
i += 1 parent.addConstraint(NSLayoutConstraint(item: children[i], attribute: .Height, relatedBy: .Equal, toItem: children[0], attribute: .Height, multiplier: 1.0, constant: 0.0))
views[k] = v }
format += i > children.count ? "[\(k)(==view1)]-(bottom)-|" : "[\(k)(==view1)]-(spacing)-" }
} parent.addConstraint(NSLayoutConstraint(item: children[children.count-1], attribute: .Bottom, relatedBy: .Equal, toItem: parent, attribute: .Bottom, multiplier: 1.0, constant: -bottom))
parent.addConstraints(constraint(format, options: options, metrics: ["top" : top, "bottom": bottom, "spacing": spacing], views: views)) }
}
} }
/// AlignToParentHorizontally /// AlignToParentHorizontally
public static func alignToParentHorizontally(parent: UIView, child: UIView, left: CGFloat = 0, right: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignToParentHorizontally(parent: UIView, child: UIView, left: CGFloat = 0, right: CGFloat = 0) {
parent.addConstraints(constraint("H:|-(left)-[child]-(right)-|", options: options, metrics: ["left": left, "right": right], views: ["child" : child])) prepareForConstraint([child])
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Left, relatedBy: .Equal, toItem: parent, attribute: .Left, multiplier: 1.0, constant: left))
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Right, relatedBy: .Equal, toItem: parent, attribute: .Right, multiplier: 1.0, constant: -right))
} }
/// AlignToParentVertically /// AlignToParentVertically
public static func alignToParentVertically(parent: UIView, child: UIView, top: CGFloat = 0, bottom: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignToParentVertically(parent: UIView, child: UIView, top: CGFloat = 0, bottom: CGFloat = 0) {
parent.addConstraints(constraint("V:|-(top)-[child]-(bottom)-|", options: options, metrics: ["bottom": bottom, "top": top], views: ["child" : child])) prepareForConstraint([child])
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Top, relatedBy: .Equal, toItem: parent, attribute: .Top, multiplier: 1.0, constant: top))
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Bottom, relatedBy: .Equal, toItem: parent, attribute: .Bottom, multiplier: 1.0, constant: -bottom))
} }
/// AlignToParent /// AlignToParent
public static func alignToParent(parent: UIView, child: UIView, top: CGFloat = 0, left: CGFloat = 0, bottom: CGFloat = 0, right: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignToParent(parent: UIView, child: UIView, top: CGFloat = 0, left: CGFloat = 0, bottom: CGFloat = 0, right: CGFloat = 0) {
alignToParentHorizontally(parent, child: child, left: left, right: right) alignToParentHorizontally(parent, child: child, left: left, right: right)
alignToParentVertically(parent, child: child, top: top, bottom: bottom) alignToParentVertically(parent, child: child, top: top, bottom: bottom)
} }
/// AlignFromTopLeft /// AlignFromTopLeft
public static func alignFromTopLeft(parent: UIView, child: UIView, top: CGFloat = 0, left: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromTopLeft(parent: UIView, child: UIView, top: CGFloat = 0, left: CGFloat = 0) {
alignFromTop(parent, child: child, top: top) alignFromTop(parent, child: child, top: top)
alignFromLeft(parent, child: child, left: left) alignFromLeft(parent, child: child, left: left)
} }
/// AlignFromTopRight /// AlignFromTopRight
public static func alignFromTopRight(parent: UIView, child: UIView, top: CGFloat = 0, right: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromTopRight(parent: UIView, child: UIView, top: CGFloat = 0, right: CGFloat = 0) {
alignFromTop(parent, child: child, top: top) alignFromTop(parent, child: child, top: top)
alignFromRight(parent, child: child, right: right) alignFromRight(parent, child: child, right: right)
} }
/// AlignFromBottomLeft /// AlignFromBottomLeft
public static func alignFromBottomLeft(parent: UIView, child: UIView, bottom: CGFloat = 0, left: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromBottomLeft(parent: UIView, child: UIView, bottom: CGFloat = 0, left: CGFloat = 0) {
alignFromBottom(parent, child: child, bottom: bottom) alignFromBottom(parent, child: child, bottom: bottom)
alignFromLeft(parent, child: child, left: left) alignFromLeft(parent, child: child, left: left)
} }
/// AlignFromBottomRight /// AlignFromBottomRight
public static func alignFromBottomRight(parent: UIView, child: UIView, bottom: CGFloat = 0, right: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromBottomRight(parent: UIView, child: UIView, bottom: CGFloat = 0, right: CGFloat = 0) {
alignFromBottom(parent, child: child, bottom: bottom) alignFromBottom(parent, child: child, bottom: bottom)
alignFromRight(parent, child: child, right: right) alignFromRight(parent, child: child, right: right)
} }
/// AlignFromTop /// AlignFromTop
public static func alignFromTop(parent: UIView, child: UIView, top: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromTop(parent: UIView, child: UIView, top: CGFloat = 0) {
parent.addConstraints(constraint("V:|-(top)-[child]", options: options, metrics: ["top" : top], views: ["child" : child])) prepareForConstraint([child])
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Top, relatedBy: .Equal, toItem: parent, attribute: .Top, multiplier: 1.0, constant: top))
} }
/// AlignFromLeft /// AlignFromLeft
public static func alignFromLeft(parent: UIView, child: UIView, left: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromLeft(parent: UIView, child: UIView, left: CGFloat = 0) {
parent.addConstraints(constraint("H:|-(left)-[child]", options: options, metrics: ["left" : left], views: ["child" : child])) prepareForConstraint([child])
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Left, relatedBy: .Equal, toItem: parent, attribute: .Left, multiplier: 1.0, constant: left))
} }
/// AlignFromBottom /// AlignFromBottom
public static func alignFromBottom(parent: UIView, child: UIView, bottom: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromBottom(parent: UIView, child: UIView, bottom: CGFloat = 0) {
parent.addConstraints(constraint("V:[child]-(bottom)-|", options: options, metrics: ["bottom" : bottom], views: ["child" : child])) prepareForConstraint([child])
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Bottom, relatedBy: .Equal, toItem: parent, attribute: .Bottom, multiplier: 1.0, constant: -bottom))
} }
/// AlignFromRight /// AlignFromRight
public static func alignFromRight(parent: UIView, child: UIView, right: CGFloat = 0, options: NSLayoutFormatOptions = []) { public static func alignFromRight(parent: UIView, child: UIView, right: CGFloat = 0) {
parent.addConstraints(constraint("H:[child]-(right)-|", options: options, metrics: ["right" : right], views: ["child" : child])) prepareForConstraint([child])
parent.addConstraint(NSLayoutConstraint(item: child, attribute: .Right, relatedBy: .Equal, toItem: parent, attribute: .Right, multiplier: 1.0, constant: -right))
} }
/// Constraint
/// prepareForConstraint
private static func prepareForConstraint(views: [UIView]) {
for v in views {
v.translatesAutoresizingMaskIntoConstraints = false
}
}
/// Constraint
public static func constraint(format: String, options: NSLayoutFormatOptions, metrics: Dictionary<String, AnyObject>?, views: Dictionary<String, AnyObject>) -> Array<NSLayoutConstraint> { public static func constraint(format: String, options: NSLayoutFormatOptions, metrics: Dictionary<String, AnyObject>?, views: Dictionary<String, AnyObject>) -> Array<NSLayoutConstraint> {
for (_, a) in views { for (_, a) in views {
if let v: UIView = a as? UIView { if let v: UIView = a as? UIView {
......
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