问题
for my App I'd like to have a debug view that I want to have only in debug-builds and not in release builds. I don't want to change my code though. Thats why i am wondering if I can check some compiler flag if this is a release build and exclude some code that i only want to have for debug builds.
回答1:
In your projects build settings, look for the preprocessor defines section, in there you can define a variable in your debug build only, such as DEBUG=1
, and then use this in your code:
#if DEBUG
NSLog(@"This will only print in debug!");
#endif
Just make sure in your release configuration, that same define is set to 0 in the same location in your build settings
回答2:
Check your projects build settings for debug to ensure that 'DEBUG' is being set - Apple gives you this for free - do this by selecting the project and clicking on the build settings tab. Search for 'DEBUG' and look to see if indeed DEBUG is being set.
![](https://www.eimg.top/images/2020/03/21/392d8cc24907497d66dc305e889b8811.png)
then conditionally code for DEBUG in your source files
#ifdef DEBUG
// Something to log your data here or even add a whole subview to see it on the device
#else
//
#endif
来源:https://stackoverflow.com/questions/9081334/ios-optional-code-fragments-for-debug-builds