iOS 错误信息 This application is modifying the autolayout engine from a background thread...

遇到这个错误:

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.

我们可以进行如下的处理:

dispatch_async(dispatch_get_main_queue(), ^{
[_tableview reloadData];
});