我怎么能用NSMutable Array确定KVO(关键价值-观察)。
我希望在阵列出现变化时通知我。 我从未像一阵列那样使用过KVO。
我认为,你有兴趣了解。
关键是,你可以直接观察阵列上的任何财产——阵列只是储存——但你注意到得到该阵列支持的对人的关系(如果我假定你的阵列是某处物体上的财产)。
如果你不希望全地利用这些特别准入者,那么你拥有阵列的法典就可以呼吁
-willChange:valuesAtIndexes:forKey: and
as described in this answer.
如果你重新加入一个Mac,而不是SOS,则你应考虑NSArrayController。
You can use KVOMutableArray. It is a subclass of NSMutableArray, and it supports KVO.
否认: 我是作者:
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