iOS設計模式之備忘錄模式

2021-07-04 10:12:47 字數 2679 閱讀 8889

-(id)initwithcoder:(nscoder *)coder;

-(void)encodewithcoder:(nscoder *)coder;

//


//  caretaker.h


//  memodemo


////  created by zhanggui on 15/8/8.


//#import %26lt;foundation/foundation.h%26gt;


@class memo;


@inte***ce caretaker : nsobject


@property(nonatomic,strong) memo *memo;


@end
caretaker.m

//


//  caretaker.m


//  memodemo


////  created by zhanggui on 15/8/8.


//#import %26quot;caretaker.h%26quot;


@implementation caretaker


@end
上面這個是看管人。

memo.h

//


//  memo.h


//  memodemo


////  created by zhanggui on 15/8/8.


//#import %26lt;foundation/foundation.h%26gt;


@inte***ce memo : nsobject


-(memo *)initwithname:(nsstring *)name andwithaddress:(nsstring *)address;


-(nsstring *)getname;


-(nsstring *)getaddress;


@end
memo.m

//


//  memo.m


//  memodemo


////  created by zhanggui on 15/8/8.


//#import %26quot;memo.h%26quot;


@implementation memo


-(memo *)initwithname:(nsstring *)name andwithaddress:(nsstring *)address


-(nsstring *)getaddress


-(nsstring *)getname


@end
上面這個是備忘錄。

student.h

//


//  student.h


//  memodemo


////  created by zhanggui on 15/8/8.


//#import %26lt;foundation/foundation.h%26gt;


@class memo;


@inte***ce student : nsobject


@property(nonatomic,strong)nsstring *myname;


@property(nonatomic,strong)nsstring *address;


-(memo *)creatememo;


-(void)setmemo:(memo *)memo;


-(void)display;


@end
student.m

//


//  student.m


//  memodemo


////  created by zhanggui on 15/8/8.


//#import %26quot;student.h%26quot;


#import %26quot;memo.h%26quot;


@implementation student


-(memo *)creatememo 


-(void)setmemo:(memo *)memo


-(void)display


@end
上面這個是student。然後看一下具體的呼叫：

//


//  viewcontroller.m


//  memodemo


////  created by zhanggui on 15/8/8.


//#import %26quot;viewcontroller.h%26quot;


#import %26quot;memo.h%26quot;


#import %26quot;caretaker.h%26quot;


#import %26quot;student.h%26quot;


@inte***ce viewcontroller ()


@end


@implementation viewcontroller


- (void)viewdidload 


@end
也就是把zhangsan原來的姓名和位址先儲存到備忘錄中，可是過了一段時間zhangsan不行用自己的新名字和位址了,所有就通過備忘錄來還原自己的姓名和位址。

iOS設計模式之備忘錄模式

id initwithcoder nscoder coder void encodewithcoder nscoder coder caretaker.h memodemo created by zhanggui on 15 8 8.import 26lt foundation foundation...

iOS設計模式之備忘錄模式

id initwithcoder nscoder coder void encodewithcoder nscoder coder caretaker.h memodemo created by zhanggui on 15 8 8.import 26lt foundation foundation...

iOS設計模式之備忘錄模式

id initwithcoder nscoder coder void encodewithcoder nscoder coder caretaker.h memodemo created by zhanggui on 15 8 8.import class memo inte ce caretak...