Main Thread Checker: UI API called on a background thread: -[UIApplication applicationState]

Question

I am using google maps in Xcode 9 beta, iOS 11.

I am getting an error outputted to the log as follows:

Main Thread Checker: UI API called on a

Answer 1

Refer this link https://developer.apple.com/documentation/code_diagnostics/main_thread_checker

For me this worked when I called from block.