iOS 使用RGArchiver存储OC对象

iOS自定义对象存储，必须继承NSCoding协议，实现对应的- (void)encodeWithCoder:(NSCoder *)coder;和- (nullable instancetype)initWithCoder:(NSCoder *)coder; 方法

RGArchiver采用runtime运行时特性，自动给对象添加encodeWithCoder,initWithCoder方法，在对应的方法中获取对象所有成员变量，进行持久化存储

github地址

使用 pod 'RGArchiver'下载框架即可直接使用，如果pod失败，需要先执行pod repo update更新本地pod库

示例

#import <Foundation/Foundation.h>


@interface User : NSObject

@property(nonatomic,assign) NSInteger age;

@property(nonatomic,copy) NSString *name;

@property(nonatomic,copy) NSString *address;

@end


@implementation User

@end

- (IBAction)archiverUser:(id)sender {
    
    User *user = [User new];
    user.name = @"小明";
    user.age = 17;
    [RGArchiver archiverObject:user toFile:[self userPath]];

}

- (IBAction)unarchiverUser:(id)sender {
    
    User *user = [RGArchiver unArchiverObjectOfObjectClass:[User class] fromFile:[self userPath]];
    NSLog(@"age = %ld,name = %@",user.age,user.name);
    
}
- (NSString *)userPath {
    
    NSString *path  = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).lastObject stringByAppendingPathComponent:@"user.plist"];
    NSLog(@"userPath = %@",path);
    return path;
}

User中类并没有实现NSCoding协议，即可实现User对象的存储