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; }
iOS -- 给model赋值时走了[self setValuesForKeysWithDictionary:dic]不走setvalue: forked:
原文：http://www.cnblogs.com/mafeng/p/5848746.html