Conditional compile when running in Simulator as opposed to on a device

Question

Is there a compiler directive I can use to compile a different line of code when targetting the simulator as opposed to my device. Something like:

# IF SIMULATOR         


        

Answer 1

For those looking for a modern Swift solution, the (new) platform condition targetEnvironment provides the definitive answer here. For instance:

#if targetEnvironment(simulator)
self.imagePicker.sourceType = .photoLibrary
#else
self.imagePicker.sourceType = .camera
#endif 

The target environment platform condition feature was introduced by SE-0190 and is available since Swift 4.1.