Bug:
This application is modifying the autolayout engine from a background thread after the engine was accessed from the main thread. This can lead to engine corruption and weird crashes.
原因：
没在主线程更新ui
解决方法：
OC
dispatch_async(dispatch_get_main_queue()){
//刷新ui
}
Swift 3
DispatchQueue.main.async {
//刷新ui
}
Bug: This application is modifying the autolayout engine ...
Modifying the Application (修改application) The application...
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 ...
This application is modifying the autolayout engine from ...
This application is modifying the autolayout engine from ...
本文标题： This application is modifying t
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