用字典值动态填充对象属性 [英] Dynamically populate object properties with dictionary values

问题描述

在Objective-C中，我有一个字典：

In Objective-C, I have a dictionary:

firstName -> John
lastName -> Smith
age -> 34

和一个对象 Person 实例变量和属性（适当地处理内存管理）。我想创建一个方便的初始化器，它将字典作为参数，并从字典键/值中填充所有对象字段（通过其用于内存管理的属性），而不是手动执行以下操作：

and an object Person that has corresponding instance variables and properties (that handle memory management appropriately). I'd like to create a convenience initializer that takes a dictionary as an argument and populates all the object fields (via their properties for memory management purposes) from the dictionary keys/values, instead of manually doing something like:

obj.firstName = [dict objectForKey:@"firstName"];
obj.lastName = [dict objectForKey:@"lastName"];
obj.age = [dict objectForKey:@"age"];
....

我该怎么做？

推荐答案

您可以使用键值编码：

[obj setValuesForKeysWithDictionary:dict];

另请参见 -setValuesForKeysWithDictionary： / code> 。

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