How to check flutter application is running in debug?

Question

I have a short question. I\'m looking for a way to execute code in Flutter when the app is in Debug mode. Is that possible in Flutter? I can\'t seem to find it anywhere in t

Answer 1

Not to be picky , but the foundation package includes a kDebugMode constant; So :

import 'package:flutter/foundation.dart' as Foundation;

if(Foundation.kDebugMode) {
   print("App in debug mode");
}

Answer 2

While asserts technically works, you should not use them.

Instead, use the constant kReleaseMode from package:flutter/foundation.dart

---

The difference is all about tree shaking

Tree shaking (aka the compiler removing unused code) depends on variables being constants.

The issue is, with asserts our isInReleaseMode boolean is not a constant. So when shipping our app, both the dev and release code are included.

On the other hand, kReleaseMode is a constant. Therefore the compiler is correctly able to remove unused code, and we can safely do:

if (kReleaseMode) {

} else {
  // Will be tree-shaked on release builds.
}

Answer 3

These are the two steps to find out in which mode the application runs

1. Add the following imports for getting

   import 'package:flutter/foundation.dart' as Foundation;
   

2. And kReleaseMode check which mode the application is running

   if(Foundation.kReleaseMode){ 
     print('app release mode');
   } else {
     print('App debug mode');
   }