OC10_代理反向传值

//
//  ProtectedDelegate.h
//  OC10_代理反向传值
//
//  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

//
//  Dog.h
//  OC10_代理反向传值
//
//  Created by zhangxueming on 15/6/24.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "ProtectedDelegate.h"
#import "Person.h"

@interface Dog : NSObject <ProtectedDelegate>

@property (nonatomic)Person *master;

@end

//
//  Dog.m
//  OC10_代理反向传值
//
//  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 ...");
    [self.master report:arc4random()%+];
}

@end

//
//  Person.h
//  OC10_代理反向传值
//
//  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

@property (assign, nonatomic) id <ProtectedDelegate>delegate;

- (void)go;

- (void)report:(NSInteger)count;

@end

//
//  Person.m
//  OC10_代理反向传值
//
//  Created by zhangxueming on 15/6/24.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import "Person.h"

@implementation Person

- (void)go
{
    [self.delegate bark];
}

- (void)report:(NSInteger)count
{
    NSLog(@"killed %li people",count);
}

@end

//
//  main.m
//  OC10_代理反向传值
//
//  Created by zhangxueming on 15/6/24.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "Person.h"
#import "Dog.h"

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        Person *xiaoXin = [[Person alloc] init];
        Dog *dog = [[Dog alloc] init];
        xiaoXin.delegate = dog;
        dog.master = xiaoXin;

        [xiaoXin go];
    }
    return ;
}