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【Xcode/Swift】紫の警告の対応方法:UIApplication.registerForRemoteNotifications() must be used from main thread only
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Problem when animating a UIView to scale to zero using CGAffineTransform on iOS | by Sarthak Tayade | Medium
Error shown: UIView.isHidden must be used from main thread only · Issue #5904 · mozilla-mobile/firefox-ios · GitHub
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UITextField.textAlignment must be used from main thread only” Can't reset TextRows in iOS 11 xcode 9.1 · Issue #1351 · xmartlabs/Eureka · GitHub
![swift - Getting a "This application is modifying the autolayout engine from a background thread" error? - Stack Overflow swift - Getting a "This application is modifying the autolayout engine from a background thread" error? - Stack Overflow](https://i.stack.imgur.com/bYqev.png)
swift - Getting a "This application is modifying the autolayout engine from a background thread" error? - Stack Overflow
![swift - Getting a "This application is modifying the autolayout engine from a background thread" error? - Stack Overflow swift - Getting a "This application is modifying the autolayout engine from a background thread" error? - Stack Overflow](https://i.stack.imgur.com/Pw1q5.png)