UITableView bug - modifying the autolayout engine from a background thread

This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes. This will cause an exception in a future release.

上述问题的解决方法:
reloadData,或者layoutSubView方法没有在主线程中执行,可以试着输出当前线程是否在主线程,若不在则返回主线程更新UI/刷新数据

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