├── .DS_Store
├── ExpandCollapseSections.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   ├── xcshareddata
    │   │   └── IDEWorkspaceChecks.plist
    │   └── xcuserdata
    │   │   └── darrenleak.xcuserdatad
    │   │       └── UserInterfaceState.xcuserstate
    └── xcuserdata
    │   └── darrenleak.xcuserdatad
    │       └── xcschemes
    │           └── xcschememanagement.plist
├── ExpandCollapseSections
    ├── AppDelegate.swift
    ├── Assets.xcassets
    │   ├── AppIcon.appiconset
    │   │   └── Contents.json
    │   └── Contents.json
    ├── Base.lproj
    │   ├── LaunchScreen.storyboard
    │   └── Main.storyboard
    ├── Info.plist
    ├── SceneDelegate.swift
    └── ViewController.swift
└── README.md


/.DS_Store:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/programmingwithswift/ExpandCollapseTableViewSections/19b651c6d6328ac52c2bdbd4e64e96343ac381fa/.DS_Store


--------------------------------------------------------------------------------
/ExpandCollapseSections.xcodeproj/project.pbxproj:
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144 | 			);
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147 | /* End PBXSourcesBuildPhase section */
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154 | 			);
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158 | 		3689AB7E23B0A0E400AB485D /* LaunchScreen.storyboard */ = {
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161 | 				3689AB7F23B0A0E400AB485D /* Base */,
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290 | 				LD_RUNPATH_SEARCH_PATHS = (
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292 | 					"@executable_path/Frameworks",
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345 | }
346 | 


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/ExpandCollapseSections.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:ExpandCollapseSections.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


--------------------------------------------------------------------------------
/ExpandCollapseSections.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3 | <plist version="1.0">
4 | <dict>
5 | 	<key>IDEDidComputeMac32BitWarning</key>
6 | 	<true/>
7 | </dict>
8 | </plist>
9 | 


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/ExpandCollapseSections.xcodeproj/project.xcworkspace/xcuserdata/darrenleak.xcuserdatad/UserInterfaceState.xcuserstate:
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/ExpandCollapseSections.xcodeproj/xcuserdata/darrenleak.xcuserdatad/xcschemes/xcschememanagement.plist:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>ExpandCollapseSections.xcscheme_^#shared#^_</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | </dict>
14 | </plist>
15 | 


--------------------------------------------------------------------------------
/ExpandCollapseSections/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  ExpandCollapseSections
 4 | //
 5 | //  Created by ProgrammingWithSwift on 2019/12/23.
 6 | //  Copyright © 2019 ProgrammingWithSwift. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 | 
15 | 
16 |     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
17 |         // Override point for customization after application launch.
18 |         return true
19 |     }
20 | 
21 |     // MARK: UISceneSession Lifecycle
22 | 
23 |     func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
24 |         // Called when a new scene session is being created.
25 |         // Use this method to select a configuration to create the new scene with.
26 |         return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
27 |     }
28 | 
29 |     func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
30 |         // Called when the user discards a scene session.
31 |         // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
32 |         // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
33 |     }
34 | 
35 | 
36 | }
37 | 
38 | 


--------------------------------------------------------------------------------
/ExpandCollapseSections/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "20x20",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "20x20",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "29x29",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "29x29",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "40x40",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "40x40",
31 |       "scale" : "3x"
32 |     },
33 |     {
34 |       "idiom" : "iphone",
35 |       "size" : "60x60",
36 |       "scale" : "2x"
37 |     },
38 |     {
39 |       "idiom" : "iphone",
40 |       "size" : "60x60",
41 |       "scale" : "3x"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "size" : "20x20",
46 |       "scale" : "1x"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "size" : "20x20",
51 |       "scale" : "2x"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "size" : "29x29",
56 |       "scale" : "1x"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "size" : "29x29",
61 |       "scale" : "2x"
62 |     },
63 |     {
64 |       "idiom" : "ipad",
65 |       "size" : "40x40",
66 |       "scale" : "1x"
67 |     },
68 |     {
69 |       "idiom" : "ipad",
70 |       "size" : "40x40",
71 |       "scale" : "2x"
72 |     },
73 |     {
74 |       "idiom" : "ipad",
75 |       "size" : "76x76",
76 |       "scale" : "1x"
77 |     },
78 |     {
79 |       "idiom" : "ipad",
80 |       "size" : "76x76",
81 |       "scale" : "2x"
82 |     },
83 |     {
84 |       "idiom" : "ipad",
85 |       "size" : "83.5x83.5",
86 |       "scale" : "2x"
87 |     },
88 |     {
89 |       "idiom" : "ios-marketing",
90 |       "size" : "1024x1024",
91 |       "scale" : "1x"
92 |     }
93 |   ],
94 |   "info" : {
95 |     "version" : 1,
96 |     "author" : "xcode"
97 |   }
98 | }


--------------------------------------------------------------------------------
/ExpandCollapseSections/Assets.xcassets/Contents.json:
--------------------------------------------------------------------------------
1 | {
2 |   "info" : {
3 |     "version" : 1,
4 |     "author" : "xcode"
5 |   }
6 | }


--------------------------------------------------------------------------------
/ExpandCollapseSections/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
 5 |         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
 6 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 7 |     </dependencies>
 8 |     <scenes>
 9 |         <!--View Controller-->
10 |         <scene sceneID="EHf-IW-A2E">
11 |             <objects>
12 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
13 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
14 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
15 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
16 |                         <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
17 |                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
18 |                     </view>
19 |                 </viewController>
20 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
21 |             </objects>
22 |             <point key="canvasLocation" x="53" y="375"/>
23 |         </scene>
24 |     </scenes>
25 | </document>
26 | 


--------------------------------------------------------------------------------
/ExpandCollapseSections/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14868" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
 3 |     <device id="retina6_1" orientation="portrait" appearance="light"/>
 4 |     <dependencies>
 5 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14824"/>
 6 |         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
 7 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 8 |     </dependencies>
 9 |     <scenes>
10 |         <!--View Controller-->
11 |         <scene sceneID="tne-QT-ifu">
12 |             <objects>
13 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="ExpandCollapseSections" customModuleProvider="target" sceneMemberID="viewController">
14 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
15 |                         <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
16 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
17 |                         <subviews>
18 |                             <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="h0t-Hf-cdO">
19 |                                 <rect key="frame" x="0.0" y="44" width="414" height="818"/>
20 |                                 <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
21 |                             </tableView>
22 |                         </subviews>
23 |                         <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
24 |                         <constraints>
25 |                             <constraint firstItem="6Tk-OE-BBY" firstAttribute="bottom" secondItem="h0t-Hf-cdO" secondAttribute="bottom" id="Fty-a1-mr4"/>
26 |                             <constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="h0t-Hf-cdO" secondAttribute="trailing" id="bd1-Q0-zBa"/>
27 |                             <constraint firstItem="h0t-Hf-cdO" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" id="hHe-Nh-g3Z"/>
28 |                             <constraint firstItem="h0t-Hf-cdO" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" id="kUw-sm-KBH"/>
29 |                         </constraints>
30 |                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
31 |                     </view>
32 |                     <connections>
33 |                         <outlet property="tableView" destination="h0t-Hf-cdO" id="hPo-Fj-eSA"/>
34 |                     </connections>
35 |                 </viewController>
36 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
37 |             </objects>
38 |             <point key="canvasLocation" x="132" y="138"/>
39 |         </scene>
40 |     </scenes>
41 | </document>
42 | 


--------------------------------------------------------------------------------
/ExpandCollapseSections/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>UIApplicationSceneManifest</key>
24 | 	<dict>
25 | 		<key>UIApplicationSupportsMultipleScenes</key>
26 | 		<false/>
27 | 		<key>UISceneConfigurations</key>
28 | 		<dict>
29 | 			<key>UIWindowSceneSessionRoleApplication</key>
30 | 			<array>
31 | 				<dict>
32 | 					<key>UISceneConfigurationName</key>
33 | 					<string>Default Configuration</string>
34 | 					<key>UISceneDelegateClassName</key>
35 | 					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
36 | 					<key>UISceneStoryboardFile</key>
37 | 					<string>Main</string>
38 | 				</dict>
39 | 			</array>
40 | 		</dict>
41 | 	</dict>
42 | 	<key>UILaunchStoryboardName</key>
43 | 	<string>LaunchScreen</string>
44 | 	<key>UIMainStoryboardFile</key>
45 | 	<string>Main</string>
46 | 	<key>UIRequiredDeviceCapabilities</key>
47 | 	<array>
48 | 		<string>armv7</string>
49 | 	</array>
50 | 	<key>UISupportedInterfaceOrientations</key>
51 | 	<array>
52 | 		<string>UIInterfaceOrientationPortrait</string>
53 | 	</array>
54 | 	<key>UISupportedInterfaceOrientations~ipad</key>
55 | 	<array>
56 | 		<string>UIInterfaceOrientationPortrait</string>
57 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
58 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
59 | 		<string>UIInterfaceOrientationLandscapeRight</string>
60 | 	</array>
61 | </dict>
62 | </plist>
63 | 


--------------------------------------------------------------------------------
/ExpandCollapseSections/SceneDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  SceneDelegate.swift
 3 | //  ExpandCollapseSections
 4 | //
 5 | //  Created by ProgrammingWithSwift on 2019/12/23.
 6 | //  Copyright © 2019 ProgrammingWithSwift. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class SceneDelegate: UIResponder, UIWindowSceneDelegate {
12 | 
13 |     var window: UIWindow?
14 | 
15 | 
16 |     func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
17 |         // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
18 |         // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
19 |         // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
20 |         guard let _ = (scene as? UIWindowScene) else { return }
21 |     }
22 | 
23 |     func sceneDidDisconnect(_ scene: UIScene) {
24 |         // Called as the scene is being released by the system.
25 |         // This occurs shortly after the scene enters the background, or when its session is discarded.
26 |         // Release any resources associated with this scene that can be re-created the next time the scene connects.
27 |         // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
28 |     }
29 | 
30 |     func sceneDidBecomeActive(_ scene: UIScene) {
31 |         // Called when the scene has moved from an inactive state to an active state.
32 |         // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
33 |     }
34 | 
35 |     func sceneWillResignActive(_ scene: UIScene) {
36 |         // Called when the scene will move from an active state to an inactive state.
37 |         // This may occur due to temporary interruptions (ex. an incoming phone call).
38 |     }
39 | 
40 |     func sceneWillEnterForeground(_ scene: UIScene) {
41 |         // Called as the scene transitions from the background to the foreground.
42 |         // Use this method to undo the changes made on entering the background.
43 |     }
44 | 
45 |     func sceneDidEnterBackground(_ scene: UIScene) {
46 |         // Called as the scene transitions from the foreground to the background.
47 |         // Use this method to save data, release shared resources, and store enough scene-specific state information
48 |         // to restore the scene back to its current state.
49 |     }
50 | 
51 | 
52 | }
53 | 
54 | 


--------------------------------------------------------------------------------
/ExpandCollapseSections/ViewController.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.swift
 3 | //  ExpandCollapseSections
 4 | //
 5 | //  Created by ProgrammingWithSwift on 2019/12/23.
 6 | //  Copyright © 2019 ProgrammingWithSwift. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
12 |     
13 |     var hiddenSections = Set<Int>()
14 |     let tableViewData = [
15 |         ["1","2","3","4","5"],
16 |         ["1","2","3","4","5"],
17 |         ["1","2","3","4","5"],
18 |         ["1","2","3","4","5"],
19 |         ["1","2","3","4","5"],
20 |     ]
21 |     
22 |     @IBOutlet weak var tableView: UITableView!
23 |     
24 |     override func viewDidLoad() {
25 |         super.viewDidLoad()
26 |         
27 |         self.tableView.delegate = self
28 |         self.tableView.dataSource = self
29 |     }
30 | 
31 |     func numberOfSections(in tableView: UITableView) -> Int {
32 |         return self.tableViewData.count
33 |     }
34 |     
35 |     func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
36 |         if self.hiddenSections.contains(section) {
37 |             return 0
38 |         }
39 |         
40 |         return self.tableViewData[section].count
41 |     }
42 |     
43 |     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
44 |         let cell = UITableViewCell()
45 |         cell.textLabel?.text = self.tableViewData[indexPath.section][indexPath.row]
46 |         
47 |         return cell
48 |     }
49 |     
50 |     func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
51 |         let sectionButton = UIButton()
52 |         sectionButton.setTitle(String(section),
53 |                                for: .normal)
54 |         sectionButton.backgroundColor = .systemBlue
55 |         sectionButton.tag = section
56 |         sectionButton.addTarget(self,
57 |                                 action: #selector(self.hideSection(sender:)),
58 |                                 for: .touchUpInside)
59 | 
60 |         return sectionButton
61 |     }
62 |     
63 |     @objc
64 |     private func hideSection(sender: UIButton) {
65 |         let section = sender.tag
66 |         
67 |         func indexPathsForSection() -> [IndexPath] {
68 |             var indexPaths = [IndexPath]()
69 |             
70 |             for row in 0..<self.tableViewData[section].count {
71 |                 indexPaths.append(IndexPath(row: row,
72 |                                             section: section))
73 |             }
74 |             
75 |             return indexPaths
76 |         }
77 |         
78 |         if self.hiddenSections.contains(section) {
79 |             self.hiddenSections.remove(section)
80 |             self.tableView.insertRows(at: indexPathsForSection(),
81 |                                       with: .fade)
82 |         } else {
83 |             self.hiddenSections.insert(section)
84 |             self.tableView.deleteRows(at: indexPathsForSection(),
85 |                                       with: .fade)
86 |         }
87 |     }
88 | }
89 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # ExpandCollapseTableViewSections
2 | Tutorial on how to expand and collapse table view sections - [Expand and collapse table view sections with Swift](https://programmingwithswift.com/expand-collapse-uitableview-section-with-swift/)
3 | 


--------------------------------------------------------------------------------