Main Thread Checker: UI API called on a background thread: -[UIApplication applicationState]
PID: 370, TID: 69204, Thread name: com.apple.CoreMotion.MotionThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
The main thread checker of Xcode 10.2 shows above warning message.
Main Thread Checker: UI API called on a background thread: -[UIApplication applicationState] PID: 370, TID: 69204, Thread name: com.apple.CoreMotion.MotionThread, Queue name: com.apple.root.default-qos.overcommit, QoS: 0
The main thread checker of Xcode 10.2 shows above warning message.