归档－对模型数组对象（存储到本地的plist文件）也数组里存放的是模型

一、模型文件

（1）JLMainViewsModel.h文件必须遵循 NSCoding协议

1 @interface JLMainViewsModel : NSObject<NSCopying,NSCoding>

（2）JLMainViewsModel.m文件实现代理方法

 1 @implementation JLMainViewsModel
 2 
 3 -(void)encodeWithCoder:(NSCoder *)aCoder{
 4     
 5     [aCoder encodeObject:self.fromSource forKey:@"fromSource"];
 6     [aCoder encodeObject:self.url forKey:@"url"];
 7     [aCoder encodeObject:self.title forKey:@"title"];
 8     [aCoder encodeObject:self.type forKey:@"type"];
 9     [aCoder encodeObject:self.newsTime forKey:@"newsTime"];
10     [aCoder encodeObject:self.imageUrl forKey:@"imageUrl"];
11     [aCoder encodeObject:self.imageArray forKey:@"imageArray"];
12     [aCoder encodeObject:self.bigImageUrl forKey:@"bigImageUrl"];
13     [aCoder encodeObject:self.bigImageArray forKey:@"bigImageArray"];
14     [aCoder encodeObject:self.recommend forKey:@"recommend"];
15     [aCoder encodeObject:self.exData forKey:@"exData"];
16     [aCoder encodeObject:self.newsType forKey:@"newsType"];
17     [aCoder encodeObject:self.style forKey:@"style"];
18     [aCoder encodeObject:self.gzh forKey:@"gzh"];
19     [aCoder encodeObject:self.uniqId forKey:@"uniqId"];
20     [aCoder encodeObject:self.subdesc forKey:@"subdesc"];
21     [aCoder encodeObject:self.autoplay forKey:@"autoplay"];
22     [aCoder encodeObject:self.fromicon forKey:@"fromicon"];
23     [aCoder encodeObject:self.webUrl forKey:@"webUrl"];
24 }
25 
26 -(id)initWithCoder:(NSCoder *)aDecoder{
27     if (self = [super init]) {
28         self.fromSource = [aDecoder decodeObjectForKey:@"fromSource"];
29         self.url = [aDecoder decodeObjectForKey:@"url"];
30         self.title = [aDecoder decodeObjectForKey:@"title"];
31         self.type = [aDecoder decodeObjectForKey:@"type"];
32         self.newsTime = [aDecoder decodeObjectForKey:@"newsTime"];
33         self.imageUrl = [aDecoder decodeObjectForKey:@"imageUrl"];
34         self.imageArray = [aDecoder decodeObjectForKey:@"imageArray"];
35         self.bigImageUrl = [aDecoder decodeObjectForKey:@"bigImageUrl"];
36         self.bigImageArray = [aDecoder decodeObjectForKey:@"bigImageArray"];
37         self.recommend = [aDecoder decodeObjectForKey:@"recommend"];
38         self.exData = [aDecoder decodeObjectForKey:@"exData"];
39         self.newsType = [aDecoder decodeObjectForKey:@"newsType"];
40         self.style = [aDecoder decodeObjectForKey:@"style"];
41         self.gzh = [aDecoder decodeObjectForKey:@"gzh"];
42         self.uniqId = [aDecoder decodeObjectForKey:@"uniqId"];
43         self.subdesc = [aDecoder decodeObjectForKey:@"subdesc"];
44         self.autoplay = [aDecoder decodeObjectForKey:@"autoplay"];
45         self.fromicon = [aDecoder decodeObjectForKey:@"fromicon"];
46         self.webUrl = [aDecoder decodeObjectForKey:@"webUrl"];
47     }
48     return self;
49 }
50 
51 - (id)copyWithZone:(NSZone *)zone
52 {
53     JLMainViewsModel *model = [[[self class] allocWithZone:zone]init];
54     return model;
55 }
56 @end

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二、对模型数组进行存储到本地

1 //此段代码紧紧只是为了说明 存储段数组 是模型数组
2                 NSMutableArray *mArray = [NSMutableArray array];
3                 //字典转模型
4                 for (NSDictionary *dict  in array) {
5                     JLMainViewsModel *news = [JLMainViewsModel newsWithDict:dict];
6                     [mArray addObject:news];
7                 }

这段代码才是存储操作

1 //1.获取存储的路径
2                     NSString *documents = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
3                     NSString *filePatha = [documents stringByAppendingPathComponent:@"newsModelWithArray.plist"];
4                     //归档
5                     [NSKeyedArchiver archiveRootObject:mArray toFile:filePatha];

三、读取归档的数据

 1 #pragma  mark - 获取本地缓存(归档)
 2 -(BOOL)getNwsDataUnarchiver{
 3     NSString *documents = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)lastObject];
 4     NSString *filePath = [documents stringByAppendingPathComponent:@"newsModelWithArray.plist"];
 5     NSMutableArray<JLMainViewsModel *> *newsModelList = [NSKeyedUnarchiver unarchiveObjectWithFile:filePath];
 6     if (newsModelList.count > 0) {
 7         self.dataArray = newsModelList.mutableCopy;
 8         return YES;
 9     }
10     return NO;
11 }

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