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add property copy and customize encoding/decoding methods #516

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Roen-Ro wants to merge 1 commit into ibireme:master from Roen-Ro:master

Roen-Ro commented Dec 24, 2018

给YYModel添加了自定义 encode/decode方法

-(BOOL)shouldCustomEncodeValueForKey:(NSString *)propertyKey withCoder:(NSCoder *)aCoder;
-(BOOL)shouldCustomDecodeValueForKey:(NSString *)propertyKey withCoder:(NSCoder *)aDecoder;

程序员可以在子类重写这两个方法来自定义一些属性的encode/decode，比如一些struct结构体，或者做一些历史版本数据的兼容，就很必要用到这两个方法。

给YYModel添加了从其他对象拷贝属性的方法
添加的方法：

-(void)copyPropertiesFromSourceObject:(id)sourceObj

通过这个方法将一个对象A的属性全部拷贝到已有的对象B上，而不需要新建创建对象


          add property copy and customize encoding/decoding methods

2872bf6

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