iOS12之后：[NSKeyedArchiver archiveRootObject: toFile: ]; 弃用了，以下是新的api

遵循NSCoding协议会解档失败，所以遵循NSSecureCoding协议

1.集成<NSCoding>

NSData *data = [NSKeyedArchiver archivedDataWithRootObject:model requiringSecureCoding: YES error:&error];

1)requiringSecureCoding = YES

报错：Error Domain=NSCocoaErrorDomain Code=4866 "The data couldn’t be written because it isn’t in the correct format." UserInfo={NSUnderlyingError=0x2836e4cc0 {Error Domain=NSCocoaErrorDomain Code=4864 "This decoder will only decode classes that adopt NSSecureCoding. Class 'PYHomeFunctionModel' does not adopt it." UserInfo={NSDebugDescription=This decoder will only decode classes that adopt NSSecureCoding. Class 'PYHomeFunctionModel' does not adopt it.}}}

2)requiringSecureCoding = NO之后，归档成功，解档 失败

解档报错：Error Domain=NSCocoaErrorDomain Code=4864 "This decoder will only decode classes that adopt NSSecureCoding. Class 'PYHomeFunctionModel' does not adopt it." UserInfo={NSDebugDescription=This decoder will only decode classes that adopt NSSecureCoding. Class 'PYHomeFunctionModel' does not adopt it.}

2.集成< NSSecureCoding >

requiringSecureCoding = YES
解档、归档都可以

3.解档时：切记把所有的对象类型都加进去

[NSKeyedUnarchiver unarchivedObjectOfClasses:[NSSet setWithArray:@[[PYHomeFunctionModel class],[NSString class], [NSArray class]]] fromData:getData error:&error];

model.h

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface PYHomeFunctionModel : NSObject<NSSecureCoding>
@property (nonatomic, copy) NSString *empid;
@property (nonatomic, copy) NSString *empname;

/// 归档
/// - Parameter model:
+ (BOOL)storeFunctionListModel:(PYHomeFunctionModel *)model;

/// 解档
+ (PYHomeFunctionModel *)readFunctionListModel;
@end

NS_ASSUME_NONNULL_END

model.m

#import "PYHomeFunctionModel.h"
#define LoginInfoPath [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"loginInfo.data"]

@implementation PYHomeFunctionModel

- (void)encodeWithCoder:(NSCoder *)coder {
    [coder encodeObject:self.empid forKey:@"empid"];
    [coder encodeObject:self.empname forKey:@"empname"];
}

- (instancetype)initWithCoder:(NSCoder *)coder {
    if (self = [super init]) {
        self.empid = [coder decodeObjectForKey:@"empid"];
        self.empname = [coder decodeObjectForKey:@"empname"];
    }
    return self;
}

+ (BOOL)supportsSecureCoding {
    return YES;
}

/**
 存储功能上下架模型数据
 */
+ (BOOL)storeFunctionListModel:(PYHomeFunctionModel *)model{
    NSError *error = nil;
    BOOL isSaveSuccess = YES;
    NSString *filePath = LoginInfoPath;
//    [NSKeyedArchiver archiveRootObject:model toFile:LoginInfoPath];
    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:model requiringSecureCoding:YES error:&error];
    
    if (data == nil || error) {
        NSLog(@"归档失败:%@",error);
        isSaveSuccess = NO;
    } else {
        BOOL suc = [data writeToFile:filePath atomically:YES];
        if (suc) {
            NSLog(@"写入成功");
            isSaveSuccess = YES;

        } else{
            NSLog(@"写入失败");
            isSaveSuccess = NO;
        }
        
    }
    
    return isSaveSuccess;
}

/**
 读取功能上下架模型数据
 */
+ (PYHomeFunctionModel *)readFunctionListModel {
    NSError *error;
    NSString *filePath = LoginInfoPath;
    NSData *getData = [NSData dataWithContentsOfFile:filePath];
    if (!getData) {
        return nil;
    }
    PYHomeFunctionModel *model = [NSKeyedUnarchiver unarchivedObjectOfClasses:[NSSet setWithArray:@[[PYHomeFunctionModel class],[NSString class], [NSArray class]]] fromData:getData error:&error];
    if (getData == nil || error) {
        NSLog(@"解档失败:%@",error);
    }
    
    if (model == nil) {
        model = [[PYHomeFunctionModel alloc] init];
        model.empid = @"";
        model.empname = @"";
    }
    return model;
}
@end