ios NSKeyedUnarchiver在iOS11 以上的用

0 归档数据的存取

#pragma mark -  数据归档
//存缓存数据
-(void)writeData:(NSArray *)dataArr andFfieldName:(NSString *)pathName {
    NSString *paths = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject];
    NSMutableArray *leftArray = [NSMutableArray arrayWithArray:dataArr];
    NSString *leftArrPath = [paths stringByAppendingString:pathName ];
     [[NSFileManager defaultManager] removeItemAtPath:leftArrPath error:nil];
      NSError *errorObj = [NSError new];
      NSData *data = [NSKeyedArchiver archivedDataWithRootObject:leftArray requiringSecureCoding:NO error:&errorObj];
       [data writeToFile:leftArrPath options:NSDataWritingAtomic error:&errorObj];
}
//取缓存数据
-(NSArray *)loadDataArrWithfieldName:(NSString *)pathName{
    NSString *paths = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject];
    NSString *leftArrPath = [paths stringByAppendingString:pathName ];
     if ([[NSFileManager defaultManager] fileExistsAtPath:leftArrPath]) {
               NSData *newData = [NSData dataWithContentsOfFile:leftArrPath];
               NSArray *dataArr = [NSKeyedUnarchiver unarchivedObjectOfClasses:[self loadSetArr] fromData:newData error:nil];
               return dataArr;
     }
     return nil;
}

//处理所有的数据类型
-(NSSet *)loadSetArr {
     return [NSSet setWithArray:@[NSArray.class,NSDictionary.class, NSString.class, UIFont.class, NSMutableArray.class, NSMutableDictionary.class, NSMutableString.class, UIColor.class, NSMutableData.class, NSData.class, NSNull.class, NSValue.class, NSDate.class, NewsRecommendModel.class, AppRecommendListModel.class]];
}

1 这是传统的自定义model.h文件

@interface NewsRecommendModel : NSObject
@property (nonatomic, copy) NSString *showTopLine;   
@property (nonatomic, copy) NSString *showBottomLine;  
@end

2 这是传统的自定义model.m文件

#import "NewsRecommendModel.h"
@interface NewsRecommendModel()<NSCoding, NSSecureCoding> //NSCoding老的协议 ,NSSecureCoding新的协议，协议必须遵守
@end

@implementation NewsRecommendModel
// 接归档此方法必须添加(接档此处必须添加)
+ (BOOL)supportsSecureCoding {
    return YES;
}
//用于归档数据
-(void)encodeWithCoder:(NSCoder *)aCoder
{
    [aCoder encodeObject:self.showTopLine forKey:@"showTopLine"];
    [aCoder encodeObject:self.showBottomLine forKey:@"showBottomLine"];
}

//用于 反归档读取数据
-(id)initWithCoder:(NSCoder *)aDecoder
{
    if (self = [super init]) {
        self.showTopLine = [aDecoder decodeObjectForKey:@"showTopLine"];
        self.showBottomLine = [aDecoder decodeObjectForKey:@"showBottomLine"];
    return self;
}
+ (instancetype) newsRecommendModelWithDictionary:(NSDictionary*)dictionary {
    NewsRecommendModel *model = [[self alloc] init];
   model.showTopLine = @"1";
  model.showBottomLine = @"1";
    return model;
}
@end

3 这是yymodel处理的model.h文件

#import <Foundation/Foundation.h>

@interface AppRecommendListModel : NSObject

@property (nonatomic, copy) NSString *type;
@property (nonatomic, copy) NSString *isVip;
@property (nonatomic, copy) NSString *siteId;
@property (nonatomic, copy) NSString *linkUrl;
@property (nonatomic, copy) NSString *channelId;
@property (nonatomic, copy) NSString *updateDate;
@property (nonatomic, copy) NSString *regionName;
@property (nonatomic, copy) NSString *channelLogo;
@property (nonatomic, copy) NSString *channelDesc;
@property (nonatomic, copy) NSString *channelName;
@property (nonatomic, copy) NSString *followStatus;
@property (nonatomic, copy) NSString *isClientSubscribe;
@property (nonatomic, copy) NSString *forbidSubNavigation;

@end

4 这是yymodel处理的model.m文件

#import "AppRecommendListModel.h"

@interface AppRecommendListModel()<NSCoding, NSSecureCoding>

@end

@implementation AppRecommendListModel

- (BOOL)modelCustomTransformFromDictionary:(NSDictionary *)dic {
    return YES;
}
//yymodel用于 反归档读取数据
- (instancetype)initWithCoder:(NSCoder *)coder
{
    self = [super init];
    return [self yy_modelInitWithCoder:coder];
}

//yymodel用于 归档读取数据
- (void)encodeWithCoder:(NSCoder *)coder
{
    [self yy_modelEncodeWithCoder:coder];
}
// 此方法必须添加(接档此处必须添加)
+ (BOOL)supportsSecureCoding {
    return YES;
}