归档普通对象Demo示例程序源代码

1. 源代码下载链接:06-归档普通对象.zip
   34.2 KB

2. // MJPerson.h

3. //
4. //  MJPerson.h
5. //  06-归档普通对象
6. //
7. //  Created by apple on 13-12-11.
8. //  Copyright (c) 2013年itcast. All rights reserved.
9. //
10. #import<Foundation/Foundation.h>
11. @interfaceMJPerson : NSObject <NSCoding>
12. @property(nonatomic,copy) NSString *name;
13. @property(nonatomic,assign)intage;
14. @property(nonatomic,assign)doubleheight;
15. @end

16. // MJPerson.m

    Map

17. //
18. //  MJPerson.m
19. //  06-归档普通对象
20. //
21. //  Created by apple on 13-12-11.
22. //  Copyright (c) 2013年itcast. All rights reserved.
23. //
24. #import"MJPerson.h"
25. @implementationMJPerson
26. #pragma mark将对象归档的时候会调用（将对象写入文件之前会调用）
27. //在这个方法说清楚：
28. // 1.哪些属性需要存储
29. // 2.怎样存储这些属性
30. - (void)encodeWithCoder:(NSCoder *)encoder
31. {
32.    //将_name属性值进行编码（会将_name的值存进文件）
33.     [encoder encodeObject:_name forKey:@"name"];
34.    
35.     [encoder encodeInt:_age forKey:@"age"];
36.    
37.    
38.     [encoder encodeDouble:_height forKey:@"height"];
39.    
40.     NSLog(@"Person---encodeWithCoder-----");
41. }
42. #pragma mark当从文件中解析对象时调用
43. //在这个方法说清楚：
44. // 1.哪些属性需要解析（读取）
45. // 2.怎样解析（读取）这些属性
46. - (id)initWithCoder:(NSCoder *)decoder
47. {
48.     NSLog(@"Person---initWithCoder-----");
49.    if(self = [super init]) {
50.         _name = [decoder decodeObjectForKey:@"name"];
51.         _age = [decoder decodeIntForKey:@"age"];
52.         _height = [decoder decodeDoubleForKey:@"height"];
53.     }
54.    return self;
55. }
56. @end

57. // MJStudent.h

    Map

58. //
59. //  MJStudent.h
60. //  06-归档普通对象
61. //
62. //  Created by apple on 13-12-11.
63. //  Copyright (c) 2013年itcast. All rights reserved.
64. //
65. #import"MJPerson.h"
66. @interfaceMJStudent : MJPerson
67. @property(nonatomic,copy) NSString *no;
68. @end

69. // MJStudent.m

    Map

70. //
71. //  MJStudent.m
72. //  06-归档普通对象
73. //
74. //  Created by apple on 13-12-11.
75. //  Copyright (c) 2013年itcast. All rights reserved.
76. //
77. #import"MJStudent.h"
78. @implementation MJStudent
79. - (void)encodeWithCoder:(NSCoder *)encoder
80. {
81.     [super encodeWithCoder:encoder];
82.    
83.     [encoder encodeObject:_no forKey:@"no"];
84.    
85.     NSLog(@"MJStudent---encodeWithCoder-----");
86. }
87. //本文永久链接,转载请注明出处:http://www.cnblogs.com/ChenYilong/p/3490624.html
88. - (id)initWithCoder:(NSCoder *)decoder
89. {
90.    if(self= [superinitWithCoder:decoder]) {
91.         NSLog(@"MJStudent---encodeWithCoder-----");
92.         _no = [decoder decodeObjectForKey:@"no"];
93.     }
94.    returnself;
95. }
96. @end

97. // MJViewController.h

    Map

98. //
99. //  MJViewController.h
100. //  06-归档普通对象
101. //
102. //  Created by apple on 13-12-11.
103. //  Copyright (c) 2013年itcast. All rights reserved.
104. //
105. #import<UIKit/UIKit.h>
106. @interfaceMJViewController : UIViewController
107. - (IBAction)save;
108. - (IBAction)read;
109. @end

110. // MJViewController.m

     Map

111. //
112. //  MJViewController.m
113. //  06-归档普通对象
114. //
115. //  Created by apple on 13-12-11.
116. //  Copyright (c) 2013年itcast. All rights reserved.
117. //
118. #import"MJViewController.h"
119. #import"MJPerson.h"
120. #import"MJStudent.h"
121. @interfaceMJViewController ()
122. @end
123. @implementationMJViewController
124. - (void)viewDidLoad
125. {
126.     [superviewDidLoad];
127. // Do any additional setup after loading the view, typically from a nib.
128. }
129. - (void)didReceiveMemoryWarning
130. {
131.     [superdidReceiveMemoryWarning];
132.    // Dispose of any resources that can be recreated.
133. }
134. - (IBAction)save {
135. //    MJPerson *p = [[MJPerson alloc] init];
136. //    p.name = @"jack";
137. //    p.age = 10;
138. //    p.height = 1.55;
139. //   
140. //    NSString *path = @"/Users/apple/Desktop/person.data";
141. //    //归档
142. //    [NSKeyedArchiver archiveRootObject:p toFile:path];
143.    
144.     MJStudent *stu = [[MJStudent alloc] init];
145.     stu.name =@"rose";
146.     stu.age =20;
147.     stu.height =1.75;
148.     stu.no =@"110";
149.    
150.     NSString *path =@"/Users/apple/Desktop/person.data";
151.    
152.     [NSKeyedArchiver archiveRootObject:stu toFile:path];
153. }
154. - (IBAction)read {
155.     NSString *path =@"/Users/apple/Desktop/person.data";
156.    
157.     MJStudent *stu = [NSKeyedUnarchiver unarchiveObjectWithFile:path];
158.    
159.     NSLog(@"%@ - %d - %f- %@", stu.name, stu.age, stu.height, stu.no);
160. ////本文永久链接,转载请注明出处:http://www.cnblogs.com/ChenYilong/p/3490624.html
161. //    //读档（反归档）
162. //    MJPerson *p = [NSKeyedUnarchiver unarchiveObjectWithFile:path];
163. //   
164. //    NSLog(@"%@ - %d - %f", p.name, p.age, p.height);
165. }
166. @end