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antoinelamyantoinelamy
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Add AutoSizing Example
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‎Example/PinLayoutSample.xcodeproj/project.pbxproj‎

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Original file line numberDiff line numberDiff line change
@@ -41,6 +41,11 @@
4141
24F246141FA8D57100B6332E /* UIImageView+Download.swift in Sources */ = {isa = PBXBuildFile; fileRef = 24F246131FA8D57100B6332E /* UIImageView+Download.swift */; };
4242
24F75B5B1EE5644E008DB567 /* IntroView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 24F75B591EE5644E008DB567 /* IntroView.swift */; };
4343
24F75B5C1EE5644E008DB567 /* IntroViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 24F75B5A1EE5644E008DB567 /* IntroViewController.swift */; };
44+
C892FA1924A5821E0086A75E /* AutoSizingViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = C892FA1824A5821E0086A75E /* AutoSizingViewController.swift */; };
45+
C892FA1B24A5822B0086A75E /* AutoSizingView.swift in Sources */ = {isa = PBXBuildFile; fileRef = C892FA1A24A5822B0086A75E /* AutoSizingView.swift */; };
46+
C892FA1D24A584010086A75E /* ContentService.swift in Sources */ = {isa = PBXBuildFile; fileRef = C892FA1C24A584010086A75E /* ContentService.swift */; };
47+
C892FA1F24A597FA0086A75E /* AutoSizingContainerView.swift in Sources */ = {isa = PBXBuildFile; fileRef = C892FA1E24A597FA0086A75E /* AutoSizingContainerView.swift */; };
48+
C892FA2124A598170086A75E /* ProxyWrapper.swift in Sources */ = {isa = PBXBuildFile; fileRef = C892FA2024A598170086A75E /* ProxyWrapper.swift */; };
4449
DF390898211900320049FD56 /* AnimationsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF390897211900320049FD56 /* AnimationsView.swift */; };
4550
DF39089A211900480049FD56 /* AnimationsViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF390899211900480049FD56 /* AnimationsViewController.swift */; };
4651
DF4C1AA4205AEDFC00DED50B /* SafeAreaView.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF4C1AA0205AEDFC00DED50B /* SafeAreaView.swift */; };
@@ -148,6 +153,11 @@
148153
24F75B5A1EE5644E008DB567 /* IntroViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = IntroViewController.swift; sourceTree = "<group>"; };
149154
A35A00E6536E49A548E763E6 /* Pods-PinLayoutSample.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-PinLayoutSample.debug.xcconfig"; path = "../Pods/Target Support Files/Pods-PinLayoutSample/Pods-PinLayoutSample.debug.xcconfig"; sourceTree = "<group>"; };
150155
C589624E868FCB20F7C10918 /* Pods-PinLayoutSample.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-PinLayoutSample.release.xcconfig"; path = "../Pods/Target Support Files/Pods-PinLayoutSample/Pods-PinLayoutSample.release.xcconfig"; sourceTree = "<group>"; };
156+
C892FA1824A5821E0086A75E /* AutoSizingViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AutoSizingViewController.swift; sourceTree = "<group>"; };
157+
C892FA1A24A5822B0086A75E /* AutoSizingView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AutoSizingView.swift; sourceTree = "<group>"; };
158+
C892FA1C24A584010086A75E /* ContentService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentService.swift; sourceTree = "<group>"; };
159+
C892FA1E24A597FA0086A75E /* AutoSizingContainerView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AutoSizingContainerView.swift; sourceTree = "<group>"; };
160+
C892FA2024A598170086A75E /* ProxyWrapper.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProxyWrapper.swift; sourceTree = "<group>"; };
151161
DF390897211900320049FD56 /* AnimationsView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = AnimationsView.swift; path = PinLayoutSample/UI/Examples/Animations/AnimationsView.swift; sourceTree = SOURCE_ROOT; };
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DF390899211900480049FD56 /* AnimationsViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AnimationsViewController.swift; sourceTree = "<group>"; };
153163
DF4C1AA0205AEDFC00DED50B /* SafeAreaView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SafeAreaView.swift; sourceTree = "<group>"; };
@@ -236,6 +246,7 @@
236246
DFD31B9D212EE4D600566CA4 /* TableViewReadableContent */,
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24D18D181F3DECD6008129EF /* IntroRTL */,
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2416376F1F8E4BC200EE703A /* IntroObjectiveC */,
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C892FA1124A582050086A75E /* AutoSizing */,
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24CD1E8D1F8E4B0A00C3A54D /* PinLayoutSample-Bridging-Header.h */,
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);
241252
path = Examples;
@@ -251,6 +262,8 @@
251262
24F246131FA8D57100B6332E /* UIImageView+Download.swift */,
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DFD27840211B1A700056BD93 /* UINavigationController+Orientation.swift */,
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DFD27847211B1D090056BD93 /* UITabBarController+Orientation.swift */,
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C892FA1C24A584010086A75E /* ContentService.swift */,
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C892FA2024A598170086A75E /* ProxyWrapper.swift */,
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);
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path = Common;
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sourceTree = "<group>";
@@ -395,6 +408,16 @@
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path = Intro;
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sourceTree = "<group>";
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};
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C892FA1124A582050086A75E /* AutoSizing */ = {
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isa = PBXGroup;
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children = (
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C892FA1824A5821E0086A75E /* AutoSizingViewController.swift */,
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C892FA1A24A5822B0086A75E /* AutoSizingView.swift */,
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C892FA1E24A597FA0086A75E /* AutoSizingContainerView.swift */,
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);
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path = AutoSizing;
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sourceTree = "<group>";
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};
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DF3908912118FFF20049FD56 /* Animations */ = {
399422
isa = PBXGroup;
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children = (
@@ -657,10 +680,12 @@
657680
24F75B5C1EE5644E008DB567 /* IntroViewController.swift in Sources */,
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241637741F8E4BC200EE703A /* IntroObjectiveCViewController.m in Sources */,
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DF390898211900320049FD56 /* AnimationsView.swift in Sources */,
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C892FA2124A598170086A75E /* ProxyWrapper.swift in Sources */,
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2439CC541E665C6B003326FB /* RelativeView.swift in Sources */,
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2439CC551E665C6B003326FB /* RelativeViewController.swift in Sources */,
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247157941F87BD680003424F /* UIEdgeInsets+PinLayout.swift in Sources */,
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24D18D1E1F3DED0D008129EF /* IntroRTLViewController.swift in Sources */,
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C892FA1F24A597FA0086A75E /* AutoSizingContainerView.swift in Sources */,
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DFEAF74C20C9649F00E33147 /* WrapContentViewController.swift in Sources */,
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24F246121FA8D4D100B6332E /* HouseCell.swift in Sources */,
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DF4C1AAE205AF78A00DED50B /* SafeAreaAndMarginsViewController.swift in Sources */,
@@ -677,6 +702,7 @@
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24CB999C1F29059B004EA7FB /* AdjustToContainerView.swift in Sources */,
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2497CFED1EF40B9100DFD13B /* FormView.swift in Sources */,
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24F75B5B1EE5644E008DB567 /* IntroView.swift in Sources */,
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C892FA1B24A5822B0086A75E /* AutoSizingView.swift in Sources */,
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DF4C1AA5205AEDFC00DED50B /* SafeAreaViewController.swift in Sources */,
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DFEAF74A20C9648A00E33147 /* WrapContentView.swift in Sources */,
682708
249EFE431E64FAFE00165E39 /* AppDelegate.swift in Sources */,
@@ -689,9 +715,11 @@
689715
24F246111FA8D4D100B6332E /* CollectionViewExampleViewController.swift in Sources */,
690716
2439CC531E665C6B003326FB /* BetweenViewController.swift in Sources */,
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DF4C1AA4205AEDFC00DED50B /* SafeAreaView.swift in Sources */,
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C892FA1924A5821E0086A75E /* AutoSizingViewController.swift in Sources */,
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241637771F8E4F9100EE703A /* IntroObjectiveCView.m in Sources */,
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24CB99A01F290664004EA7FB /* ChoiceSelectorView.swift in Sources */,
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249326891EEEEE3D00BCB814 /* Stylesheet.swift in Sources */,
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C892FA1D24A584010086A75E /* ContentService.swift in Sources */,
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DFD31BA0212EE4F200566CA4 /* TableViewReadableContentView.swift in Sources */,
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DF39089A211900480049FD56 /* AnimationsViewController.swift in Sources */,
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2439CC521E665C6B003326FB /* BetweenView.swift in Sources */,

‎Example/PinLayoutSample/UI/Common/ContentService.swift‎

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@@ -0,0 +1,41 @@
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import UIKit
2+
3+
class ContentService {
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static let shared = ContentService()
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private init() {}
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func fetchText(numberOfParagraph: Int = 1, completionHandler: ((Result<[String], Error>) -> Void)?) {
9+
URLSession.shared.dataTask(with: URL(string: "https://baconipsum.com/api/?type=all-meat&paras=\(numberOfParagraph)&start-with-lorem=1")!) { data, _, error in
10+
guard let data = data, error == nil,
11+
let paragraphs = try? JSONDecoder().decode([String].self, from: data)
12+
else {
13+
DispatchQueue.main.async {
14+
completionHandler?(Result<[String], Error>.failure(error!))
15+
}
16+
return
17+
}
18+
19+
DispatchQueue.main.async {
20+
completionHandler?(Result<[String], Error>.success(paragraphs))
21+
}
22+
}.resume()
23+
}
24+
25+
func fetchImage(width: Int, height: Int, completionHandler: ((Result<UIImage, Error>) -> Void)?) {
26+
URLSession.shared.dataTask(with: URL(string: "https://baconmockup.com/\(width)/\(height)")!) { data, _, error in
27+
guard let data = data, error == nil,
28+
let image = UIImage(data: data)
29+
else {
30+
DispatchQueue.main.async {
31+
completionHandler?(Result<UIImage, Error>.failure(error!))
32+
}
33+
return
34+
}
35+
36+
DispatchQueue.main.async {
37+
completionHandler?(Result<UIImage, Error>.success(image))
38+
}
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}.resume()
40+
}
41+
}

‎Example/PinLayoutSample/UI/Common/ProxyWrapper.swift‎

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@@ -0,0 +1,31 @@
1+
import Foundation
2+
3+
@propertyWrapper
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public struct Proxy<Value, EnclosingSelf> {
5+
private let keyPath: ReferenceWritableKeyPath<EnclosingSelf, Value>
6+
7+
public init(_ keyPath: ReferenceWritableKeyPath<EnclosingSelf, Value>) {
8+
self.keyPath = keyPath
9+
}
10+
11+
public var wrappedValue: Value {
12+
get { fatalError() }
13+
set { fatalError() }
14+
}
15+
16+
public static subscript(
17+
_enclosingInstance observed: EnclosingSelf,
18+
wrapped wrappedKeyPath: ReferenceWritableKeyPath<EnclosingSelf, Value>,
19+
storage storageKeyPath: ReferenceWritableKeyPath<EnclosingSelf, Self>
20+
) -> Value {
21+
get {
22+
let storageValue = observed[keyPath: storageKeyPath]
23+
let value = observed[keyPath: storageValue.keyPath]
24+
return value
25+
}
26+
set {
27+
let storageValue = observed[keyPath: storageKeyPath]
28+
observed[keyPath: storageValue.keyPath] = newValue
29+
}
30+
}
31+
}

‎Example/PinLayoutSample/UI/Examples/AutoSizing/AutoSizingContainerView.swift‎

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@@ -0,0 +1,68 @@
1+
import UIKit
2+
3+
final class AutoSizingContainerView: UIView {
4+
private let imageView = UIImageView()
5+
private let firstTextLabel = UILabel()
6+
private let secondTextLabel = UILabel()
7+
8+
private let margin: CGFloat = 10
9+
10+
@Proxy(\AutoSizingContainerView.imageView.image)
11+
var image: UIImage? {
12+
didSet {
13+
setNeedsLayout()
14+
}
15+
}
16+
17+
@Proxy(\AutoSizingContainerView.firstTextLabel.text)
18+
var firstText: String? {
19+
didSet {
20+
setNeedsLayout()
21+
}
22+
}
23+
24+
@Proxy(\AutoSizingContainerView.secondTextLabel.text)
25+
var secondText: String? {
26+
didSet {
27+
setNeedsLayout()
28+
}
29+
}
30+
31+
init() {
32+
super.init(frame: CGRect.zero)
33+
configureView()
34+
}
35+
36+
required init?(coder: NSCoder) {
37+
fatalError("init(coder:) has not been implemented")
38+
}
39+
40+
private func configureView() {
41+
imageView.clipsToBounds = true
42+
imageView.contentMode = .scaleAspectFill
43+
addSubview(imageView)
44+
45+
firstTextLabel.numberOfLines = 0
46+
firstTextLabel.backgroundColor = UIColor.orange.withAlphaComponent(0.3)
47+
addSubview(firstTextLabel)
48+
49+
secondTextLabel.numberOfLines = 0
50+
secondTextLabel.backgroundColor = UIColor.green.withAlphaComponent(0.3)
51+
addSubview(secondTextLabel)
52+
}
53+
54+
override func layoutSubviews() {
55+
super.layoutSubviews()
56+
performLayout()
57+
}
58+
59+
private func performLayout() {
60+
imageView.pin.top().horizontally().sizeToFit(.width).margin(margin)
61+
firstTextLabel.pin.below(of: imageView).horizontally().sizeToFit(.width).margin(margin)
62+
secondTextLabel.pin.below(of: firstTextLabel).horizontally().sizeToFit(.width).margin(margin)
63+
}
64+
65+
override func sizeThatFits(_ size: CGSize) -> CGSize {
66+
autoSizeThatFits(size, layoutClosure: performLayout)
67+
}
68+
}

‎Example/PinLayoutSample/UI/Examples/AutoSizing/AutoSizingView.swift‎

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@@ -0,0 +1,54 @@
1+
import UIKit
2+
import PinLayout
3+
4+
final class AutoSizingView: UIView {
5+
private let scrollView = UIScrollView()
6+
private let containerView = AutoSizingContainerView()
7+
8+
private let margin: CGFloat = 30
9+
10+
init() {
11+
super.init(frame: CGRect.zero)
12+
configureView()
13+
}
14+
15+
required init?(coder: NSCoder) {
16+
fatalError("init(coder:) has not been implemented")
17+
}
18+
19+
private func configureView() {
20+
backgroundColor = .white
21+
22+
scrollView.alwaysBounceVertical = true
23+
addSubview(scrollView)
24+
25+
containerView.backgroundColor = UIColor.lightGray.withAlphaComponent(0.3)
26+
scrollView.addSubview(containerView)
27+
}
28+
29+
func updateImage(_ image: UIImage?) {
30+
containerView.image = image
31+
setNeedsLayout()
32+
}
33+
34+
func updateTexts(firstText: String?, secondText: String?) {
35+
containerView.firstText = firstText
36+
containerView.secondText = secondText
37+
setNeedsLayout()
38+
}
39+
40+
override func layoutSubviews() {
41+
super.layoutSubviews()
42+
performLayout()
43+
didPerformLayout()
44+
}
45+
46+
private func performLayout() {
47+
scrollView.pin.all()
48+
containerView.pin.top(margin).horizontally(margin).sizeToFit(.width)
49+
}
50+
51+
private func didPerformLayout() {
52+
scrollView.contentSize = CGSize(width: bounds.width, height: containerView.frame.maxY + margin)
53+
}
54+
}

‎Example/PinLayoutSample/UI/Examples/AutoSizing/AutoSizingViewController.swift‎

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@@ -0,0 +1,39 @@
1+
import UIKit
2+
3+
class AutoSizingViewController: UIViewController {
4+
private var mainView: AutoSizingView {
5+
return self.view as! AutoSizingView
6+
}
7+
8+
override func loadView() {
9+
self.view = AutoSizingView()
10+
}
11+
12+
override func viewDidLoad() {
13+
super.viewDidLoad()
14+
configureNavigationBar()
15+
}
16+
17+
override func viewWillAppear(_ animated: Bool) {
18+
super.viewWillAppear(animated)
19+
randomizeContent()
20+
}
21+
22+
private func configureNavigationBar() {
23+
navigationItem.title = "AutoSizing"
24+
navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Randomize", style: .plain, target: self, action: #selector(randomizeContent))
25+
}
26+
27+
@objc
28+
private func randomizeContent() {
29+
ContentService.shared.fetchText(numberOfParagraph: 2) { [weak self] (result) in
30+
guard let strongSelf = self, case let .success(paragraphs) = result else { return }
31+
strongSelf.mainView.updateTexts(firstText: paragraphs[0], secondText: paragraphs[1])
32+
}
33+
34+
ContentService.shared.fetchImage(width: Int.random(in: 200..<500), height: Int.random(in: 200..<500)) { [weak self] (result) in
35+
guard let strongSelf = self, case let .success(image) = result else { return }
36+
strongSelf.mainView.updateImage(image)
37+
}
38+
}
39+
}

‎Example/PinLayoutSample/UI/Menu/MenuViewController.swift‎

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Original file line numberDiff line numberDiff line change
@@ -34,6 +34,7 @@ enum PageType: Int {
3434
case tableViewWithReadable
3535
case introRTL
3636
case introObjC
37+
case autoSizing
3738

3839
case count
3940

@@ -53,6 +54,7 @@ enum PageType: Int {
5354
case .tableViewWithReadable: return "UITableView using readableMargins"
5455
case .introRTL: return "Right-to-left Language Support"
5556
case .introObjC: return "Objective-C PinLayout Example"
57+
case .autoSizing: return "Auto Sizing"
5658
case .count: return ""
5759
}
5860
}
@@ -90,6 +92,8 @@ enum PageType: Int {
9092
return IntroRTLViewController(pageType: self)
9193
case .introObjC:
9294
return IntroObjectiveCViewController()
95+
case .autoSizing:
96+
return AutoSizingViewController()
9397
case .count:
9498
return UIViewController()
9599
}

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