ios - 未调用自定义 NSObject iniWithCoder

Question

我有一个自定义对象 ，LevelContent其中包含一些属性。LevelContent符合NSCoding，我已经实现了encodeWithCoder:和initWithCoder:方法。我将数据保存并获取到 Parse.com。保存工作正常，如下所示：

NSData *data = [NSKeyedArchiver archivedDataWithRootObject:self.currentLevelContent];

当我获取数据时，我得到了NSData正确的，但是当我尝试LevelContent用下载的数据初始化时，initWithCoder:永远不会被调用。我尝试LevelContent用这个加载：

LevelContent *content = [NSKeyedUnarchiver unarchiveObjectWithData:data];

这是编码/解码的代码

- (void)encodeWithCoder:(NSCoder *)aCoder {
    [aCoder encodeObject:self.tiles forKey:@"tiles"];
    [aCoder encodeObject:self.attributes forKey:@"attributes"];
    [aCoder encodeObject:self.level forKey:@"level"];
}

- (instancetype)initWithCoder:(NSCoder *)aDecoder {
    if (self == [super init]) {
        self.tiles = [NSMutableArray array];
        [self.tiles addObjectsFromArray:[aDecoder decodeObjectForKey:@"tiles"]];
        self.attributes = [NSMutableDictionary dictionary];
        [self.attributes addEntriesFromDictionary:[aDecoder decodeObjectForKey:@"attributes"]];
        self.level = [Level levelWithTopIndex:0 detailIndex:0];
        self.level = [aDecoder decodeObjectForKey:@"level"];
    }
    return self;
}

Answer 1

更改if (self == [super init])为if (self = [super init])_initWithCoder:

尝试这个，

- (instancetype)initWithCoder:(NSCoder *)aDecoder {
    if (self = [super init]) {
        .....
    }
    return self;
}