这是一个小坑, 看看你的BaseModel的便利构造器的方法:
+ (__kindof BaseModel *)modelWithDic:(NSDictionary *)dic {
return [[self alloc] initWithDic:dic];
}
self 一定要写成self, 这样才会调用子类的setvalue的方法. 不要写成BaseModel.
BaseModel.m中的代码如下:
- (instancetype)initWithDic:(NSDictionary *)dic {
self = [super init];
if (self) {
[self setValuesForKeysWithDictionary:dic];
}
return self;
}
+ (__kindof BaseModel *)modelWithDic:(NSDictionary *)dic {
return [[self alloc] initWithDic:dic];
}
- (void)setValue:(id)value forUndefinedKey:(NSString *)key {
}
- (id)valueForUndefinedKey:(NSString *)key {
return nil;
}