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

 @interface JLMainViewsModel : NSObject<NSCopying,NSCoding> 

（2）JLMainViewsModel.m文件 实现代理方法

@implementation JLMainViewsModel

-(void)encodeWithCoder:(NSCoder *)aCoder{
    
    [aCoder encodeObject:self.fromSource forKey:@"fromSource"];
    [aCoder encodeObject:self.url forKey:@"url"];
    [aCoder encodeObject:self.title forKey:@"title"];
    [aCoder encodeObject:self.type forKey:@"type"];
    [aCoder encodeObject:self.newsTime forKey:@"newsTime"];
    [aCoder encodeObject:self.imageUrl forKey:@"imageUrl"];
    [aCoder encodeObject:self.imageArray forKey:@"imageArray"];
    [aCoder encodeObject:self.bigImageUrl forKey:@"bigImageUrl"];
    [aCoder encodeObject:self.bigImageArray forKey:@"bigImageArray"];
    [aCoder encodeObject:self.recommend forKey:@"recommend"];
    [aCoder encodeObject:self.exData forKey:@"exData"];
    [aCoder encodeObject:self.newsType forKey:@"newsType"];
    [aCoder encodeObject:self.style forKey:@"style"];
    [aCoder encodeObject:self.gzh forKey:@"gzh"];
    [aCoder encodeObject:self.uniqId forKey:@"uniqId"];
    [aCoder encodeObject:self.subdesc forKey:@"subdesc"];
    [aCoder encodeObject:self.autoplay forKey:@"autoplay"];
    [aCoder encodeObject:self.fromicon forKey:@"fromicon"];
    [aCoder encodeObject:self.webUrl forKey:@"webUrl"];
}

-(id)initWithCoder:(NSCoder *)aDecoder{
    if (self = [super init]) {
        self.fromSource = [aDecoder decodeObjectForKey:@"fromSource"];
        self.url = [aDecoder decodeObjectForKey:@"url"];
        self.title = [aDecoder decodeObjectForKey:@"title"];
        self.type = [aDecoder decodeObjectForKey:@"type"];
        self.newsTime = [aDecoder decodeObjectForKey:@"newsTime"];
        self.imageUrl = [aDecoder decodeObjectForKey:@"imageUrl"];
        self.imageArray = [aDecoder decodeObjectForKey:@"imageArray"];
        self.bigImageUrl = [aDecoder decodeObjectForKey:@"bigImageUrl"];
        self.bigImageArray = [aDecoder decodeObjectForKey:@"bigImageArray"];
        self.recommend = [aDecoder decodeObjectForKey:@"recommend"];
        self.exData = [aDecoder decodeObjectForKey:@"exData"];
        self.newsType = [aDecoder decodeObjectForKey:@"newsType"];
        self.style = [aDecoder decodeObjectForKey:@"style"];
        self.gzh = [aDecoder decodeObjectForKey:@"gzh"];
        self.uniqId = [aDecoder decodeObjectForKey:@"uniqId"];
        self.subdesc = [aDecoder decodeObjectForKey:@"subdesc"];
        self.autoplay = [aDecoder decodeObjectForKey:@"autoplay"];
        self.fromicon = [aDecoder decodeObjectForKey:@"fromicon"];
        self.webUrl = [aDecoder decodeObjectForKey:@"webUrl"];
    }
    return self;
}

- (id)copyWithZone:(NSZone *)zone
{
    JLMainViewsModel *model = [[[self class] allocWithZone:zone]init];
    return model;
}
@end

二、对模型数组进行存储 到本地

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

这段代码才是 存储操作

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

三、读取 归档的数据

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