Programmatically detect if app is being run on device or simulator

问题

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: http://volcore.limbicsoft.com/2009/09/iphone-os-31-gamekit-pt-1-woooohooo.html

回答1:

#if TARGET_OS_SIMULATOR

//Simulator

#else

// Device

#endif

Pls refer this previous SO question also What #defines are set up by Xcode when compiling for iPhone

回答2:

I created a macro in which you can specify which actions you want to perform inside parentheses and these actions will only be performed if the device is being simulated.

#define SIM(x) if ([[[UIDevice currentDevice].model lowercaseString] rangeOfString:@"simulator"].location != NSNotFound){x;}

This is used like this:

SIM(NSLog(@"This will only be logged if the device is simulated"));

回答3:

TARGET_IPHONE_SIMULATOR is defined on the device (but defined to false). and defined as below

#if TARGET_IPHONE_SIMULATOR
NSString * const DeviceMode = @"Simulator";
#else
NSString * const DeviceMode = @"Device";
#endif

Just use DeviceMode to know between device and simulator

回答4:

Check if simulator

#if TARGET_IPHONE_SIMULATOR
// Simulator
#endif

Check if device

#if !(TARGET_IPHONE_SIMULATOR)
// Device
#endif

Check for both

#if TARGET_IPHONE_SIMULATOR
// Simulator
#else
// Device
#endif

Please note that you should not ifdef on TARGET_IPHONE_SIMULATOR because it will always be defined to either 1 or 0.

回答5:

You can use the TARGET_IPHONE_SIMULATOR preprocessor macro to distinguish between device and simulator targets.

回答6:

From XCode 9.3+ , Swift

#if targetEnvironment(simulator)
//Simulator
#else
//Real device
#endif

Helps you to code against device type specific.

回答7:

Use this below code:

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

Works for Swift 4 and Xcode 9.4.1

来源：https://stackoverflow.com/questions/5775420/programmatically-detect-if-app-is-being-run-on-device-or-simulator