This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes

Question

I get this log in the console when I am running my application in is simulator. Haven\'t seen this in iOS 8. I am not quite sure whats causing this. Has anyone else come acr

Answer 1

All UI part updation you need to move into MAIN thread of App.

I was calling a createMenuView() into background and i got below error

"This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes"

So I called above method into Main thread Using

    DispatchQueue.main.async {
    }

in SWIFT 3.0 and Xcode 8.0

Correct code written below :

RequestAPI.post(postString: postString, url: "https://www.someurl.com") { (succeeded: Bool, msg: String, responceData:AnyObject) -> () in

        if(succeeded) {
            print(items: "User logged in. Registration is done.")

            // Move to the UI thread
            DispatchQueue.main.async (execute: { () -> Void in

                //Set User's logged in
                Util.set_IsUserLoggedIn(state: true)
                Util.set_UserData(userData: responceData)
                self.appDelegate.createMenuView()

            })

        }
        else {
            // Move to the UI thread
            DispatchQueue.main.async (execute: { () -> Void in
                let alertcontroller = UIAlertController(title: JJS_MESSAGE, message: msg, preferredStyle: UIAlertControllerStyle.alert)
                alertcontroller.title = "No Internet"
                alertcontroller.message = FAILURE_MESSAGE
                self.present(alertcontroller, animated: true, completion: nil)
            })
        }
    }