//
// ProtectedDelegate.h
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@protocol ProtectedDelegate <NSObject>
- (
void)bark;
@end
//
// Person.h
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "ProtectedDelegate.h"
@interface Person : NSObject
{
id <ProtectedDelegate>
_delegate;
}//对象指针也要遵守协议
@property (retain, nonatomic)id <ProtectedDelegate>
delegate;
- (
void)go;
@end
//
// Person.m
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Person.h"
@implementation Person
- (
void)go
{
[_delegate bark];
}
@end
//
// Cat.h
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "ProtectedDelegate.h"//包含头文件
@interface Cat : NSObject <ProtectedDelegate>//遵守这个协议
@end
//
// Cat.m
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Cat.h"
@implementation Cat
- (
void)bark
{
NSLog(@"Miao miao miao ...");
}
@end
//
// Dog.h
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "ProtectedDelegate.h"
@interface Dog : NSObject <ProtectedDelegate>
@end
//
// Dog.m
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Dog.h"
@implementation Dog
- (
void)bark
{
NSLog(@"Wang wang wang ...");
}
@end
//
// main.m
// OC8_代理基本概念
//
// Created by zhangxueming on 15/6/24.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Dog.h"
#import "Cat.h"
#import "Person.h"
int main(
int argc,
const char *
argv[]) {
@autoreleasepool {
Person *xiaoXin =
[[Person alloc] init];
Dog *dog =
[[Dog alloc] init];
xiaoXin.delegate =
dog;
[xiaoXin go];
Cat *cat =
[[Cat alloc] init];
xiaoXin.delegate =
cat;
[xiaoXin go];
}
return 0;
}
转载于:https://www.cnblogs.com/0515offer/p/4598564.html
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