├── README.md
├── SwiftMulticastProtocol.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   └── xcuserdata
    │   │   └── frind.xcuserdatad
    │   │       └── UserInterfaceState.xcuserstate
    └── xcuserdata
    │   └── frind.xcuserdatad
    │       ├── xcdebugger
    │           └── Breakpoints_v2.xcbkptlist
    │       └── xcschemes
    │           ├── SwiftMulticastProtocol.xcscheme
    │           └── xcschememanagement.plist
└── SwiftMulticastProtocol
    ├── AppDelegate.swift
    ├── Assets.xcassets
        ├── AppIcon.appiconset
        │   ├── Contents.json
        │   ├── iPhone_App_iOS7-10_60pt@2x.png
        │   ├── iPhone_App_iOS7-10_60pt@3x.png
        │   ├── iPhone_Notifications_iOS7-10_20pt@2x.png
        │   ├── iPhone_Notifications_iOS7-10_20pt@3x.png
        │   ├── iPhone_Settings_iOS5-10_29pt@2x.png
        │   ├── iPhone_Settings_iOS5-10_29pt@3x.png
        │   ├── iPhone_Spotlight_iOS7-10_40pt@2x.png
        │   └── iPhone_Spotlight_iOS7-10_40pt@3x.png
        ├── Contents.json
        ├── first.imageset
        │   ├── Contents.json
        │   └── first.pdf
        ├── logo.imageset
        │   ├── 28453311-1919a444-6df7-11e7-9ffd-e4438c01c903.png
        │   └── Contents.json
        └── second.imageset
        │   ├── Contents.json
        │   └── second.pdf
    ├── Base.lproj
        ├── LaunchScreen.storyboard
        └── Main.storyboard
    ├── FirstViewController.swift
    ├── Info.plist
    ├── SecondViewController.swift
    ├── SwiftMulticastProtocol.swift
    └── ThirdViewController.swift


/README.md:
--------------------------------------------------------------------------------
  1 | 
  2 | # SwiftMulticastProtocol
  3 | Easy way to use a multicast intefrace
  4 | <p align="center">
  5 | <img src="https://user-images.githubusercontent.com/16253548/28453311-1919a444-6df7-11e7-9ffd-e4438c01c903.png" width="400px">
  6 | </p>
  7 | 
  8 | [![Platform](https://img.shields.io/badge/platform-ios-lightgrey.svg)]()
  9 | [![Swift3](https://img.shields.io/badge/swift3-compatible-brightgreen.svg)]()
 10 | 
 11 | <p align="center" >★★ <b>Star our github repository to help us!, or <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=BZD2RPBADPA6G" target="_blank"> ☕ pay me a coffee</a></b> ★★</p>
 12 | <p align="center" >Created by <a href="http://www.lucabecchetti.com">Luca Becchetti</a></p>
 13 | 
 14 | With this simple method you can implement a multicast interface to send a message from one class to all registered instances.
 15 | 
 16 | ## You also may like
 17 | 
 18 | Do you like `SwiftMultiSelect`? I'm also working on several other opensource libraries.
 19 | 
 20 | Take a look here:
 21 | 
 22 | * **[InAppNotify](https://github.com/lucabecchetti/InAppNotify)** - Manage in app notifications
 23 | * **[CountriesViewController](https://github.com/lucabecchetti/CountriesViewController)** - Countries selection view
 24 | * **[SwiftMultiSelect](https://github.com/lucabecchetti/SwiftMultiSelect)** - Generic multi selection tableview
 25 | 
 26 | ## Demo
 27 | 
 28 | ![giphy](https://user-images.githubusercontent.com/16253548/28473878-b729ddf8-6e46-11e7-922c-0891a15de245.gif)
 29 | 
 30 | For example, to create a simple chat application, you have a UITableView with a list of chats, and you have another class called ChatActivity with a UICollectionView of messages. Both class want to know when new message has been received or delivered. First class to show a badge count, second class to show bubble message.  First of all you have to create your interface, for example:
 31 | 
 32 | ```swift
 33 | import Foundation
 34 | 
 35 | /// Custom type, edit as you need
 36 | typealias ChatMessage = String
 37 | 
 38 | /// Delegate to implement in all classes
 39 | @objc protocol MessageDelegate {
 40 |     
 41 |     ///Called when new message has been received
 42 |     func newMessageReceived(message: ChatMessage)
 43 |     
 44 | }
 45 | ```
 46 | 
 47 | To be able to have a multiple connection to this protocol, create a multicast delegate like this:
 48 | 
 49 | ```swift
 50 | /// Delegate multicast
 51 | class MessageDelegateMulticast {
 52 |     
 53 |     //Array of registered classes
 54 |     private var notifiers: [MessageDelegate] = []
 55 |     
 56 |     
 57 |     /// New message received method
 58 |     ///
 59 |     /// - Parameter message: custom message type
 60 |     func newMessageReceived(message: ChatMessage){
 61 |         //Notify to all classes
 62 |         notifyAll { notifier in
 63 |             notifier.newMessageReceived(message: message)
 64 |         }
 65 |     }
 66 | 
 67 |     
 68 |     /// Method Register class from multicast, usually called in ViewDidLoad
 69 |     ///
 70 |     /// - Parameter notifier: class that implement MessageDelegate
 71 |     func addNotifier(notifier: MessageDelegate) {
 72 |         removeNotifier(notifier: notifier)
 73 |         notifiers.append(notifier)
 74 |     }
 75 |     
 76 |     /// Method to unregister class from multicast, usually called in ViewDidDisappear
 77 |     ///
 78 |     /// - Parameter notifier: class that implement MessageDelegate
 79 |     func removeNotifier(notifier: MessageDelegate) {
 80 |         for i in 0 ..< notifiers.count {
 81 |             if notifiers[i] === notifier || object_getClassName(notifiers[i]) ==  object_getClassName(notifier) {
 82 |                 notifiers.remove(at: i)
 83 |                 break;
 84 |             }
 85 |         }
 86 |     }
 87 |     
 88 |     
 89 |     /// Method that notify to all registered classes
 90 |     ///
 91 |     /// - Parameter notify: class that implement MessageDelegate
 92 |     private func notifyAll(notify: (MessageDelegate) -> ()) {
 93 |         for notifier in notifiers {
 94 |             notify(notifier)
 95 |         }
 96 |     }
 97 |     
 98 | }
 99 | 
100 | /// Singleton class for multicast
101 | let messageDelegateMulticast = MessageDelegateMulticast()
102 | ```
103 | 
104 | ## USAGE
105 | Each class, to receive the message can subscribe to a delegate:
106 | 
107 | ```swift
108 | class ClientA:MessageDelegate{
109 |   
110 |   override func viewDidLoad() {
111 |     messageDelegateMulticast.addNotifier(self)
112 |   }
113 |   
114 |   override func viewDidDisappear(animated: Bool) {
115 |     messageDelegateMulticast.removeNotifier(self)
116 |   }
117 |   
118 |   //MARK
119 |   func newMessageReceived(message: ChatMessage){
120 |     print("Message received from A: \(message)")  
121 |   }
122 | 
123 | }
124 | 
125 | class ClientB:MessageDelegate{
126 |   
127 |   override func viewDidLoad() {
128 |     messageDelegateMulticast.addNotifier(self)
129 |   }
130 |   
131 |   override func viewDidDisappear(animated: Bool) {
132 |     messageDelegateMulticast.removeNotifier(self)
133 |   }
134 |   
135 |   //MARK
136 |   func newMessageReceived(message: ChatMessage){
137 |     print("Message received from B: \(message)")  
138 |   }
139 |   
140 | }
141 | ```
142 | 
143 | Now when method of delegate is called like this:
144 | 
145 | ```swift
146 | messageDelegateMulticast.newMessageReceived(message)
147 | ```
148 | 
149 | ClassA and ClassB will be informed and will receive the message.
150 | 
151 | ## Projects using SwiftMulticastProtocol
152 | 
153 | - Frind - [www.frind.it](https://www.frind.it) 
154 | 
155 | ### Your App and SwiftMulticastProtocol
156 | I'm interested in making a list of all projects which use this library. Feel free to open an Issue on GitHub with the name and links of your project; we'll add it to this site.
157 | 
158 | ## Credits & License
159 | SwiftMulticastProtocol is owned and maintained by [Luca Becchetti](http://www.lucabecchetti.com) 
160 | 
161 | As open source creation any help is welcome!
162 | 
163 | The code of this library is is free to use and change (I'm happy to discuss any PR with you)
164 | 
165 | ## About me
166 | 
167 | I am a professional programmer with a background in software design and development, currently developing my qualitative skills on a startup company named "[Frind](https://www.frind.it) " as Project Manager and ios senior software engineer.
168 | 
169 | I'm high skilled in Software Design (10+ years of experience), i have been worked since i was young as webmaster, and i'm a senior Php developer. In the last years i have been worked hard with mobile application programming, Swift for ios world, and Java for Android world.
170 | 
171 | I'm an expert mobile developer and architect with several years of experience of team managing, design and development on all the major mobile platforms: iOS, Android (3+ years of experience).
172 | 
173 | I'm also has broad experience on Web design and development both on client and server side and API /Networking design. 
174 | 
175 | All my last works are hosted on AWS Amazon cloud, i'm able to configure a netowrk, with Unix servers. For my last works i configured apache2, ssl, ejabberd in cluster mode, Api servers with load balancer, and more.
176 | 
177 | I live in Assisi (Perugia), a small town in Italy, for any question, [contact me](mailto:luca.becchetti@brokenice.it)
178 | 


--------------------------------------------------------------------------------
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257 | 				GCC_C_LANGUAGE_STANDARD = gnu99;
258 | 				GCC_NO_COMMON_BLOCKS = YES;
259 | 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
260 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
261 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
262 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
263 | 				GCC_WARN_UNUSED_FUNCTION = YES;
264 | 				GCC_WARN_UNUSED_VARIABLE = YES;
265 | 				IPHONEOS_DEPLOYMENT_TARGET = 10.3;
266 | 				MTL_ENABLE_DEBUG_INFO = NO;
267 | 				SDKROOT = iphoneos;
268 | 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
269 | 				TARGETED_DEVICE_FAMILY = "1,2";
270 | 				VALIDATE_PRODUCT = YES;
271 | 			};
272 | 			name = Release;
273 | 		};
274 | 		B1951C621F21EAFB001EDB92 /* Debug */ = {
275 | 			isa = XCBuildConfiguration;
276 | 			buildSettings = {
277 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
278 | 				DEVELOPMENT_TEAM = 49RE3G6CPG;
279 | 				INFOPLIST_FILE = SwiftMulticastProtocol/Info.plist;
280 | 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
281 | 				PRODUCT_BUNDLE_IDENTIFIER = it.brokenice.SwiftMulticastProtocol;
282 | 				PRODUCT_NAME = "$(TARGET_NAME)";
283 | 				SWIFT_VERSION = 3.0;
284 | 			};
285 | 			name = Debug;
286 | 		};
287 | 		B1951C631F21EAFB001EDB92 /* Release */ = {
288 | 			isa = XCBuildConfiguration;
289 | 			buildSettings = {
290 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
291 | 				DEVELOPMENT_TEAM = 49RE3G6CPG;
292 | 				INFOPLIST_FILE = SwiftMulticastProtocol/Info.plist;
293 | 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
294 | 				PRODUCT_BUNDLE_IDENTIFIER = it.brokenice.SwiftMulticastProtocol;
295 | 				PRODUCT_NAME = "$(TARGET_NAME)";
296 | 				SWIFT_VERSION = 3.0;
297 | 			};
298 | 			name = Release;
299 | 		};
300 | /* End XCBuildConfiguration section */
301 | 
302 | /* Begin XCConfigurationList section */
303 | 		B1951C481F21EAFB001EDB92 /* Build configuration list for PBXProject "SwiftMulticastProtocol" */ = {
304 | 			isa = XCConfigurationList;
305 | 			buildConfigurations = (
306 | 				B1951C5F1F21EAFB001EDB92 /* Debug */,
307 | 				B1951C601F21EAFB001EDB92 /* Release */,
308 | 			);
309 | 			defaultConfigurationIsVisible = 0;
310 | 			defaultConfigurationName = Release;
311 | 		};
312 | 		B1951C611F21EAFB001EDB92 /* Build configuration list for PBXNativeTarget "SwiftMulticastProtocol" */ = {
313 | 			isa = XCConfigurationList;
314 | 			buildConfigurations = (
315 | 				B1951C621F21EAFB001EDB92 /* Debug */,
316 | 				B1951C631F21EAFB001EDB92 /* Release */,
317 | 			);
318 | 			defaultConfigurationIsVisible = 0;
319 | 		};
320 | /* End XCConfigurationList section */
321 | 	};
322 | 	rootObject = B1951C451F21EAFB001EDB92 /* Project object */;
323 | }
324 | 


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


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2 | <Bucket
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4 |    version = "2.0">
5 | </Bucket>
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <Scheme
 3 |    LastUpgradeVersion = "0830"
 4 |    version = "1.3">
 5 |    <BuildAction
 6 |       parallelizeBuildables = "YES"
 7 |       buildImplicitDependencies = "YES">
 8 |       <BuildActionEntries>
 9 |          <BuildActionEntry
10 |             buildForTesting = "YES"
11 |             buildForRunning = "YES"
12 |             buildForProfiling = "YES"
13 |             buildForArchiving = "YES"
14 |             buildForAnalyzing = "YES">
15 |             <BuildableReference
16 |                BuildableIdentifier = "primary"
17 |                BlueprintIdentifier = "B1951C4C1F21EAFB001EDB92"
18 |                BuildableName = "SwiftMulticastProtocol.app"
19 |                BlueprintName = "SwiftMulticastProtocol"
20 |                ReferencedContainer = "container:SwiftMulticastProtocol.xcodeproj">
21 |             </BuildableReference>
22 |          </BuildActionEntry>
23 |       </BuildActionEntries>
24 |    </BuildAction>
25 |    <TestAction
26 |       buildConfiguration = "Debug"
27 |       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
28 |       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
29 |       shouldUseLaunchSchemeArgsEnv = "YES">
30 |       <Testables>
31 |       </Testables>
32 |       <MacroExpansion>
33 |          <BuildableReference
34 |             BuildableIdentifier = "primary"
35 |             BlueprintIdentifier = "B1951C4C1F21EAFB001EDB92"
36 |             BuildableName = "SwiftMulticastProtocol.app"
37 |             BlueprintName = "SwiftMulticastProtocol"
38 |             ReferencedContainer = "container:SwiftMulticastProtocol.xcodeproj">
39 |          </BuildableReference>
40 |       </MacroExpansion>
41 |       <AdditionalOptions>
42 |       </AdditionalOptions>
43 |    </TestAction>
44 |    <LaunchAction
45 |       buildConfiguration = "Debug"
46 |       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
47 |       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
48 |       launchStyle = "0"
49 |       useCustomWorkingDirectory = "NO"
50 |       ignoresPersistentStateOnLaunch = "NO"
51 |       debugDocumentVersioning = "YES"
52 |       debugServiceExtension = "internal"
53 |       allowLocationSimulation = "YES">
54 |       <BuildableProductRunnable
55 |          runnableDebuggingMode = "0">
56 |          <BuildableReference
57 |             BuildableIdentifier = "primary"
58 |             BlueprintIdentifier = "B1951C4C1F21EAFB001EDB92"
59 |             BuildableName = "SwiftMulticastProtocol.app"
60 |             BlueprintName = "SwiftMulticastProtocol"
61 |             ReferencedContainer = "container:SwiftMulticastProtocol.xcodeproj">
62 |          </BuildableReference>
63 |       </BuildableProductRunnable>
64 |       <AdditionalOptions>
65 |       </AdditionalOptions>
66 |    </LaunchAction>
67 |    <ProfileAction
68 |       buildConfiguration = "Release"
69 |       shouldUseLaunchSchemeArgsEnv = "YES"
70 |       savedToolIdentifier = ""
71 |       useCustomWorkingDirectory = "NO"
72 |       debugDocumentVersioning = "YES">
73 |       <BuildableProductRunnable
74 |          runnableDebuggingMode = "0">
75 |          <BuildableReference
76 |             BuildableIdentifier = "primary"
77 |             BlueprintIdentifier = "B1951C4C1F21EAFB001EDB92"
78 |             BuildableName = "SwiftMulticastProtocol.app"
79 |             BlueprintName = "SwiftMulticastProtocol"
80 |             ReferencedContainer = "container:SwiftMulticastProtocol.xcodeproj">
81 |          </BuildableReference>
82 |       </BuildableProductRunnable>
83 |    </ProfileAction>
84 |    <AnalyzeAction
85 |       buildConfiguration = "Debug">
86 |    </AnalyzeAction>
87 |    <ArchiveAction
88 |       buildConfiguration = "Release"
89 |       revealArchiveInOrganizer = "YES">
90 |    </ArchiveAction>
91 | </Scheme>
92 | 


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 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>SwiftMulticastProtocol.xcscheme</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | 	<key>SuppressBuildableAutocreation</key>
14 | 	<dict>
15 | 		<key>B1951C4C1F21EAFB001EDB92</key>
16 | 		<dict>
17 | 			<key>primary</key>
18 | 			<true/>
19 | 		</dict>
20 | 	</dict>
21 | </dict>
22 | </plist>
23 | 


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/SwiftMulticastProtocol/AppDelegate.swift:
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 1 | //
 2 | //  AppDelegate.swift
 3 | //  SwiftMulticastProtocol
 4 | //
 5 | //  Created by Luca Becchetti on 21/07/17.
 6 | //  Copyright © 2017 Luca Becchetti. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 |     var window: UIWindow?
15 | 
16 | 
17 |     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
18 |         // Override point for customization after application launch.
19 |         return true
20 |     }
21 | 
22 |     func applicationWillResignActive(_ application: UIApplication) {
23 |         // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
24 |         // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
25 |     }
26 | 
27 |     func applicationDidEnterBackground(_ application: UIApplication) {
28 |         // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
29 |         // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
30 |     }
31 | 
32 |     func applicationWillEnterForeground(_ application: UIApplication) {
33 |         // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
34 |     }
35 | 
36 |     func applicationDidBecomeActive(_ application: UIApplication) {
37 |         // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
38 |     }
39 | 
40 |     func applicationWillTerminate(_ application: UIApplication) {
41 |         // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
42 |     }
43 | 
44 | 
45 | }
46 | 
47 | 


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  1 | {
  2 |   "images" : [
  3 |     {
  4 |       "size" : "20x20",
  5 |       "idiom" : "iphone",
  6 |       "filename" : "iPhone_Notifications_iOS7-10_20pt@2x.png",
  7 |       "scale" : "2x"
  8 |     },
  9 |     {
 10 |       "size" : "20x20",
 11 |       "idiom" : "iphone",
 12 |       "filename" : "iPhone_Notifications_iOS7-10_20pt@3x.png",
 13 |       "scale" : "3x"
 14 |     },
 15 |     {
 16 |       "size" : "29x29",
 17 |       "idiom" : "iphone",
 18 |       "filename" : "iPhone_Settings_iOS5-10_29pt@2x.png",
 19 |       "scale" : "2x"
 20 |     },
 21 |     {
 22 |       "size" : "29x29",
 23 |       "idiom" : "iphone",
 24 |       "filename" : "iPhone_Settings_iOS5-10_29pt@3x.png",
 25 |       "scale" : "3x"
 26 |     },
 27 |     {
 28 |       "size" : "40x40",
 29 |       "idiom" : "iphone",
 30 |       "filename" : "iPhone_Spotlight_iOS7-10_40pt@2x.png",
 31 |       "scale" : "2x"
 32 |     },
 33 |     {
 34 |       "size" : "40x40",
 35 |       "idiom" : "iphone",
 36 |       "filename" : "iPhone_Spotlight_iOS7-10_40pt@3x.png",
 37 |       "scale" : "3x"
 38 |     },
 39 |     {
 40 |       "size" : "60x60",
 41 |       "idiom" : "iphone",
 42 |       "filename" : "iPhone_App_iOS7-10_60pt@2x.png",
 43 |       "scale" : "2x"
 44 |     },
 45 |     {
 46 |       "size" : "60x60",
 47 |       "idiom" : "iphone",
 48 |       "filename" : "iPhone_App_iOS7-10_60pt@3x.png",
 49 |       "scale" : "3x"
 50 |     },
 51 |     {
 52 |       "idiom" : "ipad",
 53 |       "size" : "20x20",
 54 |       "scale" : "1x"
 55 |     },
 56 |     {
 57 |       "idiom" : "ipad",
 58 |       "size" : "20x20",
 59 |       "scale" : "2x"
 60 |     },
 61 |     {
 62 |       "idiom" : "ipad",
 63 |       "size" : "29x29",
 64 |       "scale" : "1x"
 65 |     },
 66 |     {
 67 |       "idiom" : "ipad",
 68 |       "size" : "29x29",
 69 |       "scale" : "2x"
 70 |     },
 71 |     {
 72 |       "idiom" : "ipad",
 73 |       "size" : "40x40",
 74 |       "scale" : "1x"
 75 |     },
 76 |     {
 77 |       "idiom" : "ipad",
 78 |       "size" : "40x40",
 79 |       "scale" : "2x"
 80 |     },
 81 |     {
 82 |       "idiom" : "ipad",
 83 |       "size" : "76x76",
 84 |       "scale" : "1x"
 85 |     },
 86 |     {
 87 |       "idiom" : "ipad",
 88 |       "size" : "76x76",
 89 |       "scale" : "2x"
 90 |     },
 91 |     {
 92 |       "idiom" : "ipad",
 93 |       "size" : "83.5x83.5",
 94 |       "scale" : "2x"
 95 |     }
 96 |   ],
 97 |   "info" : {
 98 |     "version" : 1,
 99 |     "author" : "xcode"
100 |   }
101 | }


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2 |   "info" : {
3 |     "version" : 1,
4 |     "author" : "xcode"
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6 | }


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 3 |     {
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 6 |     }
 7 |   ],
 8 |   "info" : {
 9 |     "version" : 1,
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 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "universal",
 5 |       "scale" : "1x"
 6 |     },
 7 |     {
 8 |       "idiom" : "universal",
 9 |       "scale" : "2x"
10 |     },
11 |     {
12 |       "idiom" : "universal",
13 |       "filename" : "28453311-1919a444-6df7-11e7-9ffd-e4438c01c903.png",
14 |       "scale" : "3x"
15 |     }
16 |   ],
17 |   "info" : {
18 |     "version" : 1,
19 |     "author" : "xcode"
20 |   }
21 | }


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 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "universal",
 5 |       "filename" : "second.pdf"
 6 |     }
 7 |   ],
 8 |   "info" : {
 9 |     "version" : 1,
10 |     "author" : "xcode"
11 |   }
12 | }


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 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11134" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11106"/>
 5 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 6 |     </dependencies>
 7 |     <scenes>
 8 |         <!--View Controller-->
 9 |         <scene sceneID="EHf-IW-A2E">
10 |             <objects>
11 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
12 |                     <layoutGuides>
13 |                         <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
14 |                         <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
15 |                     </layoutGuides>
16 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
17 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
18 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
19 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
20 |                     </view>
21 |                 </viewController>
22 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
23 |             </objects>
24 |             <point key="canvasLocation" x="53" y="375"/>
25 |         </scene>
26 |     </scenes>
27 | </document>
28 | 


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  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12120" systemVersion="16F73" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="49e-Tb-3d3">
  3 |     <device id="retina4_7" orientation="portrait">
  4 |         <adaptation id="fullscreen"/>
  5 |     </device>
  6 |     <dependencies>
  7 |         <deployment identifier="iOS"/>
  8 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12088"/>
  9 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 10 |     </dependencies>
 11 |     <scenes>
 12 |         <!--First-->
 13 |         <scene sceneID="hNz-n2-bh7">
 14 |             <objects>
 15 |                 <viewController id="9pv-A4-QxB" customClass="FirstViewController" customModule="SwiftMulticastProtocol" customModuleProvider="target" sceneMemberID="viewController">
 16 |                     <layoutGuides>
 17 |                         <viewControllerLayoutGuide type="top" id="Ia1-K6-d13"/>
 18 |                         <viewControllerLayoutGuide type="bottom" id="4ug-Mw-9AY"/>
 19 |                     </layoutGuides>
 20 |                     <view key="view" contentMode="scaleToFill" id="tsR-hK-woN">
 21 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
 22 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
 23 |                         <subviews>
 24 |                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleToFill" text="First Class" textAlignment="center" lineBreakMode="tailTruncation" minimumFontSize="10" translatesAutoresizingMaskIntoConstraints="NO" id="KQZ-1w-vlD">
 25 |                                 <rect key="frame" x="103" y="313" width="170" height="42"/>
 26 |                                 <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
 27 |                                 <fontDescription key="fontDescription" name="Helvetica" family="Helvetica" pointSize="36"/>
 28 |                                 <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
 29 |                                 <nil key="highlightedColor"/>
 30 |                             </label>
 31 |                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="A5M-7J-77L">
 32 |                                 <rect key="frame" x="188" y="362.5" width="0.0" height="0.0"/>
 33 |                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
 34 |                                 <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
 35 |                                 <nil key="highlightedColor"/>
 36 |                             </label>
 37 |                             <textField opaque="NO" clipsSubviews="YES" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="hFu-Gq-v6w">
 38 |                                 <rect key="frame" x="27" y="205" width="321" height="30"/>
 39 |                                 <constraints>
 40 |                                     <constraint firstAttribute="width" constant="321" id="XTr-ba-kF2"/>
 41 |                                 </constraints>
 42 |                                 <nil key="textColor"/>
 43 |                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
 44 |                                 <textInputTraits key="textInputTraits"/>
 45 |                             </textField>
 46 |                             <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="sT1-T5-Xix">
 47 |                                 <rect key="frame" x="86.5" y="258" width="202" height="30"/>
 48 |                                 <state key="normal" title="Send message to all delegate"/>
 49 |                                 <connections>
 50 |                                     <action selector="sendMessage:" destination="9pv-A4-QxB" eventType="touchUpInside" id="GFY-Ju-BQj"/>
 51 |                                 </connections>
 52 |                             </button>
 53 |                             <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="logo" translatesAutoresizingMaskIntoConstraints="NO" id="6um-tm-MWA">
 54 |                                 <rect key="frame" x="128" y="77" width="120" height="120"/>
 55 |                                 <constraints>
 56 |                                     <constraint firstAttribute="height" constant="120" id="EAQ-U1-s0p"/>
 57 |                                     <constraint firstAttribute="width" constant="120" id="zii-mI-WO0"/>
 58 |                                 </constraints>
 59 |                             </imageView>
 60 |                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="SwiftMulticastProtocol" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="YJt-4t-aVJ">
 61 |                                 <rect key="frame" x="98.5" y="48" width="178" height="21"/>
 62 |                                 <fontDescription key="fontDescription" type="system" weight="medium" pointSize="17"/>
 63 |                                 <nil key="textColor"/>
 64 |                                 <nil key="highlightedColor"/>
 65 |                             </label>
 66 |                         </subviews>
 67 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
 68 |                         <constraints>
 69 |                             <constraint firstItem="hFu-Gq-v6w" firstAttribute="centerX" secondItem="tsR-hK-woN" secondAttribute="centerX" id="1KQ-cb-1XP"/>
 70 |                             <constraint firstItem="6um-tm-MWA" firstAttribute="top" secondItem="YJt-4t-aVJ" secondAttribute="bottom" constant="8" id="5gS-Tq-fEJ"/>
 71 |                             <constraint firstAttribute="centerX" secondItem="KQZ-1w-vlD" secondAttribute="centerX" id="6BV-lF-sBN"/>
 72 |                             <constraint firstItem="YJt-4t-aVJ" firstAttribute="centerX" secondItem="tsR-hK-woN" secondAttribute="centerX" id="E9h-KR-7Bn"/>
 73 |                             <constraint firstItem="sT1-T5-Xix" firstAttribute="top" secondItem="hFu-Gq-v6w" secondAttribute="bottom" constant="23" id="Fub-74-ZxP"/>
 74 |                             <constraint firstItem="hFu-Gq-v6w" firstAttribute="top" secondItem="6um-tm-MWA" secondAttribute="bottom" constant="8" id="NJ4-7U-eIq"/>
 75 |                             <constraint firstItem="sT1-T5-Xix" firstAttribute="centerX" secondItem="tsR-hK-woN" secondAttribute="centerX" id="amp-zW-7Lb"/>
 76 |                             <constraint firstItem="A5M-7J-77L" firstAttribute="top" secondItem="KQZ-1w-vlD" secondAttribute="bottom" constant="8" symbolic="YES" id="cfb-er-3JN"/>
 77 |                             <constraint firstItem="A5M-7J-77L" firstAttribute="centerX" secondItem="KQZ-1w-vlD" secondAttribute="centerX" id="e1l-AV-tCB"/>
 78 |                             <constraint firstItem="KQZ-1w-vlD" firstAttribute="top" secondItem="sT1-T5-Xix" secondAttribute="bottom" constant="25" id="e6g-0S-KNw"/>
 79 |                             <constraint firstAttribute="centerY" secondItem="KQZ-1w-vlD" secondAttribute="centerY" id="exm-UA-ej4"/>
 80 |                             <constraint firstItem="6um-tm-MWA" firstAttribute="centerX" secondItem="tsR-hK-woN" secondAttribute="centerX" id="h09-4c-aEP"/>
 81 |                         </constraints>
 82 |                     </view>
 83 |                     <tabBarItem key="tabBarItem" title="First" image="first" id="acW-dT-cKf"/>
 84 |                     <connections>
 85 |                         <outlet property="label" destination="A5M-7J-77L" id="gsx-Pg-ObG"/>
 86 |                         <outlet property="textField" destination="hFu-Gq-v6w" id="yzp-dN-aC4"/>
 87 |                     </connections>
 88 |                 </viewController>
 89 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="W5J-7L-Pyd" sceneMemberID="firstResponder"/>
 90 |             </objects>
 91 |             <point key="canvasLocation" x="749.60000000000002" y="-320.68965517241384"/>
 92 |         </scene>
 93 |         <!--Second-->
 94 |         <scene sceneID="wg7-f3-ORb">
 95 |             <objects>
 96 |                 <viewController id="8rJ-Kc-sve" customClass="SecondViewController" customModule="SwiftMulticastProtocol" customModuleProvider="target" sceneMemberID="viewController">
 97 |                     <layoutGuides>
 98 |                         <viewControllerLayoutGuide type="top" id="L7p-HK-0SC"/>
 99 |                         <viewControllerLayoutGuide type="bottom" id="Djb-ko-YwX"/>
100 |                     </layoutGuides>
101 |                     <view key="view" contentMode="scaleToFill" id="QS5-Rx-YEW">
102 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
103 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
104 |                         <subviews>
105 |                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleToFill" text="Second Class" textAlignment="center" lineBreakMode="tailTruncation" minimumFontSize="10" translatesAutoresizingMaskIntoConstraints="NO" id="zEq-FU-wV5">
106 |                                 <rect key="frame" x="76" y="313" width="223" height="42"/>
107 |                                 <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
108 |                                 <fontDescription key="fontDescription" name="Helvetica" family="Helvetica" pointSize="36"/>
109 |                                 <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
110 |                                 <nil key="highlightedColor"/>
111 |                             </label>
112 |                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="NDk-cv-Gan">
113 |                                 <rect key="frame" x="188" y="362.5" width="0.0" height="0.0"/>
114 |                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
115 |                                 <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
116 |                                 <nil key="highlightedColor"/>
117 |                             </label>
118 |                         </subviews>
119 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
120 |                         <constraints>
121 |                             <constraint firstItem="NDk-cv-Gan" firstAttribute="top" secondItem="zEq-FU-wV5" secondAttribute="bottom" constant="8" symbolic="YES" id="Day-4N-Vmt"/>
122 |                             <constraint firstItem="NDk-cv-Gan" firstAttribute="centerX" secondItem="zEq-FU-wV5" secondAttribute="centerX" id="JgO-Fn-dHn"/>
123 |                             <constraint firstAttribute="centerX" secondItem="zEq-FU-wV5" secondAttribute="centerX" id="qqM-NS-xev"/>
124 |                             <constraint firstAttribute="centerY" secondItem="zEq-FU-wV5" secondAttribute="centerY" id="qzY-Ky-pLD"/>
125 |                         </constraints>
126 |                     </view>
127 |                     <tabBarItem key="tabBarItem" title="Second" image="second" id="cPa-gy-q4n"/>
128 |                     <connections>
129 |                         <outlet property="label" destination="NDk-cv-Gan" id="A7O-F3-pFp"/>
130 |                     </connections>
131 |                 </viewController>
132 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="4Nw-L8-lE0" sceneMemberID="firstResponder"/>
133 |             </objects>
134 |             <point key="canvasLocation" x="750" y="347"/>
135 |         </scene>
136 |         <!--Tab Bar Controller-->
137 |         <scene sceneID="yl2-sM-qoP">
138 |             <objects>
139 |                 <tabBarController id="49e-Tb-3d3" sceneMemberID="viewController">
140 |                     <nil key="simulatedBottomBarMetrics"/>
141 |                     <tabBar key="tabBar" contentMode="scaleToFill" id="W28-zg-YXA">
142 |                         <rect key="frame" x="0.0" y="975" width="768" height="49"/>
143 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" flexibleMinY="YES"/>
144 |                         <color key="backgroundColor" red="0.0" green="0.0" blue="0.0" alpha="0.0" colorSpace="custom" customColorSpace="sRGB"/>
145 |                     </tabBar>
146 |                     <connections>
147 |                         <segue destination="9pv-A4-QxB" kind="relationship" relationship="viewControllers" id="u7Y-xg-7CH"/>
148 |                         <segue destination="8rJ-Kc-sve" kind="relationship" relationship="viewControllers" id="lzU-1b-eKA"/>
149 |                         <segue destination="JuN-nW-v8e" kind="relationship" relationship="viewControllers" id="rhS-od-iBc"/>
150 |                     </connections>
151 |                 </tabBarController>
152 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="HuB-VB-40B" sceneMemberID="firstResponder"/>
153 |             </objects>
154 |             <point key="canvasLocation" x="0.0" y="0.0"/>
155 |         </scene>
156 |         <!--Third-->
157 |         <scene sceneID="zBe-RY-9nk">
158 |             <objects>
159 |                 <viewController id="JuN-nW-v8e" customClass="ThirdViewController" customModule="SwiftMulticastProtocol" customModuleProvider="target" sceneMemberID="viewController">
160 |                     <layoutGuides>
161 |                         <viewControllerLayoutGuide type="top" id="mhK-xR-xK1"/>
162 |                         <viewControllerLayoutGuide type="bottom" id="KEi-tP-ge9"/>
163 |                     </layoutGuides>
164 |                     <view key="view" contentMode="scaleToFill" id="cMY-Kx-TOg">
165 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
166 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
167 |                         <subviews>
168 |                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleToFill" text="Third Class" textAlignment="center" lineBreakMode="tailTruncation" minimumFontSize="10" translatesAutoresizingMaskIntoConstraints="NO" id="NDm-1J-d3D">
169 |                                 <rect key="frame" x="96.5" y="313" width="182.5" height="42"/>
170 |                                 <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
171 |                                 <fontDescription key="fontDescription" name="Helvetica" family="Helvetica" pointSize="36"/>
172 |                                 <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
173 |                                 <nil key="highlightedColor"/>
174 |                             </label>
175 |                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Is4-SH-jga">
176 |                                 <rect key="frame" x="188" y="362.5" width="0.0" height="0.0"/>
177 |                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
178 |                                 <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
179 |                                 <nil key="highlightedColor"/>
180 |                             </label>
181 |                         </subviews>
182 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
183 |                         <constraints>
184 |                             <constraint firstAttribute="centerX" secondItem="NDm-1J-d3D" secondAttribute="centerX" id="EQc-Cs-4yL"/>
185 |                             <constraint firstItem="Is4-SH-jga" firstAttribute="centerX" secondItem="NDm-1J-d3D" secondAttribute="centerX" id="MCt-b4-s30"/>
186 |                             <constraint firstItem="Is4-SH-jga" firstAttribute="top" secondItem="NDm-1J-d3D" secondAttribute="bottom" constant="8" symbolic="YES" id="Mpv-D9-siV"/>
187 |                             <constraint firstAttribute="centerY" secondItem="NDm-1J-d3D" secondAttribute="centerY" id="wTP-mS-Tpf"/>
188 |                         </constraints>
189 |                     </view>
190 |                     <tabBarItem key="tabBarItem" title="Third" image="second" id="05C-bh-lNM"/>
191 |                     <connections>
192 |                         <outlet property="label" destination="Is4-SH-jga" id="i1c-RW-Fjt"/>
193 |                     </connections>
194 |                 </viewController>
195 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="lJO-Cj-kK9" sceneMemberID="firstResponder"/>
196 |             </objects>
197 |             <point key="canvasLocation" x="750" y="1033"/>
198 |         </scene>
199 |     </scenes>
200 |     <resources>
201 |         <image name="first" width="30" height="30"/>
202 |         <image name="logo" width="16" height="16"/>
203 |         <image name="second" width="30" height="30"/>
204 |     </resources>
205 | </document>
206 | 


--------------------------------------------------------------------------------
/SwiftMulticastProtocol/FirstViewController.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  FirstViewController.swift
 3 | //  SwiftMulticastProtocol
 4 | //
 5 | //  Created by Luca Becchetti on 21/07/17.
 6 | //  Copyright © 2017 Luca Becchetti. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class FirstViewController: UIViewController,MessageDelegate {
12 | 
13 |     @IBOutlet weak var label        : UILabel!
14 |     @IBOutlet weak var textField    : UITextField!
15 |     
16 |     override func viewDidLoad() {
17 |         super.viewDidLoad()
18 |     }
19 |     
20 |     override func viewWillAppear(_ animated: Bool) {
21 |         
22 |         //Register to delegate
23 |         messageDelegateMulticast.addNotifier(notifier: self)
24 |         
25 |         if label.text == nil || label.text! == ""{
26 |             label.textColor = UIColor.orange
27 |             label.text = "Delegate has been subscribed"
28 |         }
29 |         
30 |     }
31 | 
32 |     override func didReceiveMemoryWarning() {
33 |         super.didReceiveMemoryWarning()
34 |         // Dispose of any resources that can be recreated.
35 |     }
36 |     
37 |     
38 |     /// Function to send message
39 |     ///
40 |     /// - Parameter sender: UIButton
41 |     @IBAction func sendMessage(_ sender: Any) {
42 |         
43 |         if let txt = textField.text{
44 |             //Comunicate event to delegate
45 |             messageDelegateMulticast.newMessageReceived(message: txt)
46 |         }
47 |         textField.text = ""
48 |         textField.resignFirstResponder()
49 |         
50 |     }
51 |     
52 |     //MARK: MessageDelegate
53 | 
54 |     
55 |     /// Called from multicast when new message has been received
56 |     ///
57 |     /// - Parameter message: custom type
58 |     func newMessageReceived(message: ChatMessage) {
59 |         
60 |         label.textColor = UIColor.green
61 |         label.text = "First class has received message: \(message)"
62 |         
63 |     }
64 |     
65 | }
66 | 
67 | 


--------------------------------------------------------------------------------
/SwiftMulticastProtocol/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>en</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>APPL</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>UILaunchStoryboardName</key>
24 | 	<string>LaunchScreen</string>
25 | 	<key>UIMainStoryboardFile</key>
26 | 	<string>Main</string>
27 | 	<key>UIRequiredDeviceCapabilities</key>
28 | 	<array>
29 | 		<string>armv7</string>
30 | 	</array>
31 | 	<key>UIStatusBarTintParameters</key>
32 | 	<dict>
33 | 		<key>UINavigationBar</key>
34 | 		<dict>
35 | 			<key>Style</key>
36 | 			<string>UIBarStyleDefault</string>
37 | 			<key>Translucent</key>
38 | 			<false/>
39 | 		</dict>
40 | 	</dict>
41 | 	<key>UISupportedInterfaceOrientations</key>
42 | 	<array>
43 | 		<string>UIInterfaceOrientationPortrait</string>
44 | 	</array>
45 | 	<key>UISupportedInterfaceOrientations~ipad</key>
46 | 	<array>
47 | 		<string>UIInterfaceOrientationPortrait</string>
48 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
49 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
50 | 		<string>UIInterfaceOrientationLandscapeRight</string>
51 | 	</array>
52 | </dict>
53 | </plist>
54 | 


--------------------------------------------------------------------------------
/SwiftMulticastProtocol/SecondViewController.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  SecondViewController.swift
 3 | //  SwiftMulticastProtocol
 4 | //
 5 | //  Created by Luca Becchetti on 21/07/17.
 6 | //  Copyright © 2017 Luca Becchetti. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class SecondViewController: UIViewController,MessageDelegate {
12 | 
13 |     
14 |     @IBOutlet weak var label: UILabel!
15 |     
16 |     override func viewDidLoad() {
17 |         super.viewDidLoad()
18 | 
19 |     }
20 |     
21 |     override func viewWillAppear(_ animated: Bool) {
22 |         
23 |         //Register to delegate
24 |         messageDelegateMulticast.addNotifier(notifier: self)
25 |         
26 |         if label.text == nil || label.text! == ""{
27 |             label.textColor = UIColor.orange
28 |             label.text = "Delegate has been subscribed"
29 |         }
30 |         
31 |     }
32 | 
33 |     override func didReceiveMemoryWarning() {
34 |         super.didReceiveMemoryWarning()
35 |         // Dispose of any resources that can be recreated.
36 |     }
37 |     
38 |     //MARK: MessageDelegate
39 |     
40 |     
41 |     /// Called from multicast when new message has been received
42 |     ///
43 |     /// - Parameter message: custom type
44 |     func newMessageReceived(message: ChatMessage) {
45 |         
46 |         label.textColor = UIColor.green
47 |         label.text = "Second class has received message: \(message)"
48 |         
49 |     }
50 | 
51 | 
52 | }
53 | 
54 | 


--------------------------------------------------------------------------------
/SwiftMulticastProtocol/SwiftMulticastProtocol.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  MessageDelegate.swift
 3 | //  SwiftMulticastProtocol
 4 | //
 5 | //  Created by Luca Becchetti on 21/07/17.
 6 | //  Copyright © 2017 Luca Becchetti. All rights reserved.
 7 | //
 8 | 
 9 | import Foundation
10 | 
11 | /// Custom type, edit as you need
12 | typealias ChatMessage = String
13 | 
14 | 
15 | /// Delegate to implement in all classes
16 | @objc protocol MessageDelegate {
17 |     
18 |     ///Called when new message has been received
19 |     func newMessageReceived(message: ChatMessage)
20 |     
21 | }
22 | 
23 | 
24 | /// Delegate multicast
25 | class MessageDelegateMulticast {
26 |     
27 |     //Array of registered classes
28 |     private var notifiers: [MessageDelegate] = []
29 |     
30 |     
31 |     /// New message received method
32 |     ///
33 |     /// - Parameter message: custom message type
34 |     func newMessageReceived(message: ChatMessage){
35 |         //Notify to all classes
36 |         notifyAll { notifier in
37 |             notifier.newMessageReceived(message: message)
38 |         }
39 |     }
40 | 
41 |     
42 |     /// Method Register class from multicast, usually called in ViewDidLoad
43 |     ///
44 |     /// - Parameter notifier: class that implement MessageDelegate
45 |     func addNotifier(notifier: MessageDelegate) {
46 |         removeNotifier(notifier: notifier)
47 |         notifiers.append(notifier)
48 |     }
49 |     
50 |     /// Method to unregister class from multicast, usually called in ViewDidDisappear
51 |     ///
52 |     /// - Parameter notifier: class that implement MessageDelegate
53 |     func removeNotifier(notifier: MessageDelegate) {
54 |         for i in 0 ..< notifiers.count {
55 |             if notifiers[i] === notifier || object_getClassName(notifiers[i]) ==  object_getClassName(notifier) {
56 |                 notifiers.remove(at: i)
57 |                 break;
58 |             }
59 |         }
60 |     }
61 |     
62 |     
63 |     /// Method that notify to all registered classes
64 |     ///
65 |     /// - Parameter notify: class that implement MessageDelegate
66 |     private func notifyAll(notify: (MessageDelegate) -> ()) {
67 |         for notifier in notifiers {
68 |             notify(notifier)
69 |         }
70 |     }
71 |     
72 | }
73 | 
74 | /// Singleton class for multicast
75 | let messageDelegateMulticast = MessageDelegateMulticast()
76 | 


--------------------------------------------------------------------------------
/SwiftMulticastProtocol/ThirdViewController.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  SecondViewController.swift
 3 | //  SwiftMulticastProtocol
 4 | //
 5 | //  Created by Luca Becchetti on 21/07/17.
 6 | //  Copyright © 2017 Luca Becchetti. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ThirdViewController: UIViewController,MessageDelegate {
12 | 
13 |     @IBOutlet weak var label: UILabel!
14 |     
15 |     override func viewDidLoad() {
16 |         super.viewDidLoad()
17 |         
18 |     }
19 |     
20 |     override func viewWillAppear(_ animated: Bool) {
21 |         
22 |         //Register to delegate
23 |         messageDelegateMulticast.addNotifier(notifier: self)
24 |         
25 |         if label.text == nil || label.text! == ""{
26 |             label.textColor = UIColor.orange
27 |             label.text = "Delegate has been subscribed"
28 |         }
29 |         
30 |     }
31 |     
32 |     override func didReceiveMemoryWarning() {
33 |         super.didReceiveMemoryWarning()
34 |         // Dispose of any resources that can be recreated.
35 |     }
36 |     
37 |     //MARK: MessageDelegate
38 |     
39 |     
40 |     /// Called from multicast when new message has been received
41 |     ///
42 |     /// - Parameter message: custom type
43 |     func newMessageReceived(message: ChatMessage) {
44 |         
45 |         label.textColor = UIColor.green
46 |         label.text = "Third class has received message: \(message)"
47 |         
48 |     }
49 | 
50 |     
51 | }
52 | 
53 | 


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