问题描述：
在进行tableview刷新列表操作过程中出现问题：This application is modifying the autolayout engin from a background thread,which can lead to engine corruption and weird crashes,This will cause an exception in a future rellease.
原因分析：
可能因为是异步获取数据后（融云的即时通讯消息），在子线程中直接刷新列表数据造成。
解决方法:
在获取数据后，在主线程中刷新列表。
从别的线程中拿到数据源后，必须回到主线程中更新数据和UI。
dispatch_async(dispatch_get_main_queue(), ^{
[msgTabView reloadData];
});
UI界面的刷新需要回到主线程中。 dispatch_async(dispatch_get_main_queue()...
问题描述： 在进行tableview刷新列表操作过程中出现问题：This application is modif...
Modifying the Application (修改application) The application...
更新UI的操作必须放在主线程里，否则可能会出错。This application is modifying the...
This application is modifying the autolayout engine from ...
This application is modifying the autolayout engine from ...
This application is modifying the autolayout engine from ...
This application is modifying the autolayout engine from ...
This application is modifying the autolayout engine from ...
This application is modifying the autolayout engine from ...
本文标题：线程：This application is modifying
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