使用字典值动态填充对象属性
在 Objective-C 中，我有一个字典：
firstName -> John
lastName -> Smith
age -> 34
和一个具有相应实例变量和属性（适当处理内存管理）的对象 Person。我想创建一个方便的初始化程序，它采用字典作为参数，并从字典键/值填充所有对象字段（通过其属性用于内存管理目的），而不是手动执行以下操作：
obj.firstName = [dict objectForKey:@"firstName"];
obj.lastName = [dict objectForKey:@"lastName"];
obj.age = [dict objectForKey:@"age"];
....
我该怎么做？
In Objective-C, I have a dictionary:
firstName -> John
lastName -> Smith
age -> 34
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"];
....
How can I do this?
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您可以使用键值编码：
另请参阅
-setValuesForKeysWithDictionary:的文档。You can use Key-Value Coding:
See also the documentation for
-setValuesForKeysWithDictionary:.