NSKeyArchiver缓存model信息

最新推荐文章于 2020-09-22 01:54:23 发布

原创最新推荐文章于 2020-09-22 01:54:23 发布 · 513 阅读

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本文介绍如何使用NSKeyArchiver和NSKeyedUnarchiver在iOS中存储和读取用户模型信息，实现数据的持久化。

NSKeyArchiver缓存model信息

/**
 * 存储用户信息
 */
+ (void)setUserModel:(UserModel *)model
{
    NSString *documents = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *path = [documents stringByAppendingPathComponent:kKeySaveUserModelPath];
    [NSKeyedArchiver archiveRootObject:model toFile:path];
    
}

+ (UserModel *)getUserModel
{
    NSString *documents = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *path = [documents stringByAppendingPathComponent:kKeySaveUserModelPath];
    UserModel *userModel = [NSKeyedUnarchiver unarchiveObjectWithFile:path];
    return userModel;
}