Archive&Unarchive

2019-11-14 20:28:56

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来源：转载

供稿：网友

Archive（归档）

需要归档的对象必须要遵循NSCoding协议，那么在调用archiverRootObject方法的时候，会自动调用该对象的encodeWithCoder方法

- (void)encodeWithCoder:(NSCoder *)aCoder{    [aCoder encodeObject:_name forKey:@"name"];    [aCoder encodeInteger:_age forKey:@"age"];    [aCoder encodeObject:_tel forKey:@"tel"];    [aCoder encodeObject:_icon forKey:@"icon"];}

调用方法：[NSKeyedArchiver archiveRootObject:<#(id)#> toFile:<#(NSString *)#>];

Unarchive（恢复）

需要恢复的对象在调用unarchiveObjectWithFile方法的时候，会自动调用该对象的initWithCoder方法

- (id)initWithCoder:(NSCoder *)aDecoder{    NSLog(@".....");    _name = [aDecoder decodeObjectForKey:@"name"];    _age = [aDecoder decodeIntegerForKey:@"age"];    _tel = [aDecoder decodeObjectForKey:@"tel"];    _icon = [aDecoder decodeObjectForKey:@"icon"];    return self;}