ios-新浪微博开发-18-（授权存储账号信息）用归档实现

来源：互联网发布：java 读取linux文件夹编辑：程序博客网时间：2024/05/17 07:45

#import <Foundation/Foundation.h>#warning 这里必须遵守协议 不然不知道对象中的哪些属性写进沙盒@interface QHAccount : NSObject <NSCoding>//  返回值字段 字段类型 字段说明  /** string 用于调用access_token，接口获取授权后的access token。*/@property(nonatomic,copy)NSString * access_token;/**string access_token的生命周期，单位是秒数。*/@property(nonatomic,copy)NSString * expires_in;/**string 当前授权用户的UID。*/@property(nonatomic,copy)NSString *uid;+ (instancetype)accountWithDict:(NSDictionary *)dict;@end

#import "QHAccount.h"@implementation QHAccount+ (instancetype)accountWithDict:(NSDictionary *)dict{    QHAccount *account = [[self alloc]init];    account.access_token = dict[@"access_token"];    account.uid = dict[@"uid"];    account.expires_in = dict[@"expires_in"];    return account;}/** *  当一个对象要归档进沙盒中时，就会调用这个方法 *  目的：在这个方法中说明这个对象的哪些属性要存进沙盒 */- (void)encodeWithCoder:(NSCoder *)aCoder{    [aCoder encodeObject:self.access_token forKey:@"access_token"];    [aCoder encodeObject:self.expires_in forKey:@"expires_in"];    [aCoder encodeObject:self.uid forKey:@"uid"];    }/** *  当从沙盒中解档一个对象时(从沙盒中加载一个对象时)就会调用这个方法 *  目的：在这个方法中说明沙盒中的属性该怎么解析 (需要取出哪些属性) */- (id)initWithCoder:(NSCoder *)aDecoder{    if(self = [super init])    {        self.access_token = [aDecoder decodeObjectForKey:@"access_token"];        self.expires_in = [aDecoder decodeObjectForKey:@"expires_in"];        self.uid = [aDecoder decodeObjectForKey:@"uid"];    }    return self;}@end

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