When I read a plist for a dictionary which is not empty and has at-least one key value pair into an NSMutableDictionary property of my model class, Everything works fine. I can add,delete modify the mutable dictionary.
但当字典 < 坚固> 是空 时
并用这样的标签可以看到此列表 :
然后,尽管我的财产有一个NSM变数指示器, 所创造的物体变得不可改变。
and when I try to set an object in it for a particular property, It gives me this error saying:
NS 内部一致性例外,原因: - -- NSCF 变量设置Object:forKey: :: 向不可变对象发送突变方法
NSMutableDictionary *mutable = [yourApparentlyMutableDictionary mutableCopy];
相当肯定从列表中检索到的所有物体都是不可变异的变异物。 但是,我确实看到了一种选择,可以把它们消散成变异。
编辑 :
本篇文章解释如何将一个可变列表划为可变列表:
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