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Maru
I'm afraid not.I tried, but it still crash.You can try this on any simulator that
The reason is the ScrollView own a NSKeyValueObservation instance that observer the same ScrollView.But on iOS11, That all work.
@ 做消息本地化不久可以做删除了，只删除本地的消息，云端的消息不影响。现在的无论什么应用，云端的数据能不删就不删的
封装一个FileMessage的子类，然后构造FileMessage里面的AVFile，然后send，Done！