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Observer
Observer
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8 files changed

+132
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‎MLDesignPatterns-OC/MLDesignPatterns-OC.xcodeproj/project.pbxproj

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@@ -13,6 +13,8 @@
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10428FF31F8D22E800C67F26 /* Command.m in Sources */ = {isa = PBXBuildFile; fileRef = 10428FF21F8D22E800C67F26 /* Command.m */; };
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10428FF71F8FC3AD00C67F26 /* ChatRoom.m in Sources */ = {isa = PBXBuildFile; fileRef = 10428FF61F8FC3AD00C67F26 /* ChatRoom.m */; };
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10428FFA1F8FC4A600C67F26 /* User.m in Sources */ = {isa = PBXBuildFile; fileRef = 10428FF91F8FC4A600C67F26 /* User.m */; };
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10428FFD1F8FCB4300C67F26 /* JobProvider.m in Sources */ = {isa = PBXBuildFile; fileRef = 10428FFC1F8FCB4300C67F26 /* JobProvider.m */; };
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104290051F8FD05700C67F26 /* JobHunter.m in Sources */ = {isa = PBXBuildFile; fileRef = 104290041F8FD05700C67F26 /* JobHunter.m */; };
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104D30E61F5C5CC30092D139 /* ChickenBurger.m in Sources */ = {isa = PBXBuildFile; fileRef = 104D30E51F5C5CC30092D139 /* ChickenBurger.m */; };
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104D30E91F5C5DA60092D139 /* Condiment.m in Sources */ = {isa = PBXBuildFile; fileRef = 104D30E81F5C5DA60092D139 /* Condiment.m */; };
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104D30EC1F5C5E290092D139 /* Chilli.m in Sources */ = {isa = PBXBuildFile; fileRef = 104D30EB1F5C5E290092D139 /* Chilli.m */; };
@@ -96,6 +98,12 @@
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10428FF61F8FC3AD00C67F26 /* ChatRoom.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ChatRoom.m; sourceTree = "<group>"; };
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10428FF81F8FC4A600C67F26 /* User.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = User.h; sourceTree = "<group>"; };
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10428FF91F8FC4A600C67F26 /* User.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = User.m; sourceTree = "<group>"; };
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10428FFB1F8FCB4300C67F26 /* JobProvider.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = JobProvider.h; sourceTree = "<group>"; };
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10428FFC1F8FCB4300C67F26 /* JobProvider.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = JobProvider.m; sourceTree = "<group>"; };
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10428FFE1F8FCD5B00C67F26 /* ObserverProtocol.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ObserverProtocol.h; sourceTree = "<group>"; };
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104290021F8FCF3D00C67F26 /* SubjectProtocol.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = SubjectProtocol.h; sourceTree = "<group>"; };
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104290031F8FD05700C67F26 /* JobHunter.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = JobHunter.h; sourceTree = "<group>"; };
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104290041F8FD05700C67F26 /* JobHunter.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = JobHunter.m; sourceTree = "<group>"; };
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104D30E31F5C5C740092D139 /* Humburger.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Humburger.h; sourceTree = "<group>"; };
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104D30E41F5C5CC30092D139 /* ChickenBurger.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ChickenBurger.h; sourceTree = "<group>"; };
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104D30E51F5C5CC30092D139 /* ChickenBurger.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ChickenBurger.m; sourceTree = "<group>"; };
@@ -504,6 +512,12 @@
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107938B31F3B761F000F287A /* Observer */ = {
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isa = PBXGroup;
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children = (
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104290021F8FCF3D00C67F26 /* SubjectProtocol.h */,
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10428FFB1F8FCB4300C67F26 /* JobProvider.h */,
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10428FFC1F8FCB4300C67F26 /* JobProvider.m */,
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10428FFE1F8FCD5B00C67F26 /* ObserverProtocol.h */,
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104290031F8FD05700C67F26 /* JobHunter.h */,
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104290041F8FD05700C67F26 /* JobHunter.m */,
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);
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path = Observer;
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sourceTree = "<group>";
@@ -661,6 +675,7 @@
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109400481F42025E0026A0BB /* Singleton.m in Sources */,
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104D30F61F5DB19F0092D139 /* FlyweightFactory.m in Sources */,
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104D31041F619F8B0092D139 /* Manager.m in Sources */,
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10428FFD1F8FCB4300C67F26 /* JobProvider.m in Sources */,
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10D385371F4497120095A417 /* YellowHuman.m in Sources */,
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104D30F31F5DB1010092D139 /* Circle.m in Sources */,
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10428FF31F8D22E800C67F26 /* Command.m in Sources */,
@@ -687,6 +702,7 @@
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10D385EF1F4B41BF0095A417 /* FiveYuanNoSpicyBuild.m in Sources */,
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10D385361F4497120095A417 /* WhiteHuman.m in Sources */,
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10428FEA1F8D21CB00C67F26 /* Cook.m in Sources */,
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104290051F8FD05700C67F26 /* JobHunter.m in Sources */,
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10D385DC1F4B32870095A417 /* WoodDoorFactory.m in Sources */,
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10428FF71F8FC3AD00C67F26 /* ChatRoom.m in Sources */,
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104D30EC1F5C5E290092D139 /* Chilli.m in Sources */,

‎MLDesignPatterns-OC/MLDesignPatterns-OC/Observer/JobHunter.h

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//
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// JobHunter.h
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// MLDesignPatterns-OC
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//
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// Created by mjpc on 2017/10/13.
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// Copyright © 2017年 mali. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@interface JobHunter : NSObject
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@end

‎MLDesignPatterns-OC/MLDesignPatterns-OC/Observer/JobHunter.m

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//
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// JobHunter.m
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// MLDesignPatterns-OC
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//
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// Created by mjpc on 2017/10/13.
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// Copyright © 2017年 mali. All rights reserved.
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//
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#import "JobHunter.h"
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@implementation JobHunter
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@end

‎MLDesignPatterns-OC/MLDesignPatterns-OC/Observer/JobProvider.h

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//
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// Subject.h
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// MLDesignPatterns-OC
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//
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// Created by mjpc on 2017/10/13.
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// Copyright © 2017年 mali. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#import "SubjectProtocol.h"
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@interface Subject : NSObject<SubjectProtocol>
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@end

‎MLDesignPatterns-OC/MLDesignPatterns-OC/Observer/JobProvider.m

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//
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// Subject.m
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// MLDesignPatterns-OC
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//
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// Created by mjpc on 2017/10/13.
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// Copyright © 2017年 mali. All rights reserved.
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//
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#import "Subject.h"
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@interface Subject()
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@property (nonatomic, strong) NSMutableArray *observers;
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@end
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@implementation Subject
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- (void)addObserver:(NSObject *)observer {
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[self.observers addObject:observer];
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}
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- (void)removeObserver:(NSObject *)observer {
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[self.observers removeObject:observer];
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}
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- (void)notify {
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for (id <ObserverProtocol> observer in self.observers) {
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[observer update];
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}
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}
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- (NSMutableArray *)observers {
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if (!_observers) {
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_observers = [[NSMutableArray alloc] init];
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}
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return _observers;
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}
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@end

‎MLDesignPatterns-OC/MLDesignPatterns-OC/Observer/ObserverProtocol.h

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//
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// ObserverProtocol.h
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// MLDesignPatterns-OC
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//
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// Created by mjpc on 2017/10/13.
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// Copyright © 2017年 mali. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@protocol ObserverProtocol <NSObject>
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@end

‎MLDesignPatterns-OC/MLDesignPatterns-OC/Observer/SubjectProtocol.h

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//
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// SubjectProtocol.h
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// MLDesignPatterns-OC
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//
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// Created by mjpc on 2017/10/13.
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// Copyright © 2017年 mali. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@protocol SubjectProtocol <NSObject>
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@end

‎MLDesignPatterns-OC/MLDesignPatterns-OC/main.m

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#import "AbaloneCommand.h"
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#import "User.h"
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#import "ChatRoom.h"
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#import "JobProvider.h"
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#import "JobHunter.h"
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#warning 调用部分请见main方法
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@@ -200,6 +202,14 @@ void mediator() {
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[me sendMessage:@"谢谢，不做伪工作者"];
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}
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void observer() {
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JobHunter *zhangSan = [[JobHunter alloc] initWithName:@"张三"];
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JobHunter *liSi = [[JobHunter alloc] initWithName:@"李四"];
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JobProvider *jobProvider = [[JobProvider alloc] init];
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[jobProvider addObserver:zhangSan];
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[jobProvider addObserver:liSi];
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[jobProvider notify];
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}
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int main(int argc, const char * argv[]) {
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@autoreleasepool {
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// proxy();
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// chainOfResponsibility();
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// command();
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mediator();
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// mediator();
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observer();
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}
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return 0;
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}

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