Programmatically detect if app is being run on device or simulator

Question

I\'d like to know whether my app is being run on device or simulator at run time. Is there a way to detect this?

Reason being to test bluetooth api with simulator:

Answer 1

Use this below code:

#if targetEnvironment(simulator)
   // iOS Simulator
#else
   // Device
#endif

Works for Swift 4 and Xcode 9.4.1