Helper utility to detect build mode (debug, profile, and release) in a Flutter app.

build_mode.dart

abstract class BuildMode {
  static final BuildModeType buildMode = () {
    if (const bool.fromEnvironment('dart.vm.product')) {
      return BuildModeType.release;
    }
    var result = BuildModeType.profile;
    assert(() {
      result = BuildModeType.debug;
      return true;
    }());
    return result;
  }();

  static final bool isDebug = buildMode == BuildModeType.debug;
  static final bool isNotDebug = !isDebug;
  static final bool isProfile = buildMode == BuildModeType.profile;
  static final bool isNotProfile = !isProfile;
  static final bool isRelease = buildMode == BuildModeType.release;
  static final bool isNotRelease = !isRelease;
}

enum BuildModeType {
  debug,
  profile,
  release,
}

build_mode_example.dart

import './build_mode.dart';

print('App is running in ${BuildMode.buildMode}');

if(BuildMode.isRelease) { 
  initializeAnalytics();
}

if(BuildMode.isDebug) {
  print('Some debugging info.');
  // Note: to print debug info, check out also debugPrint() as an alternative
  // See https://flutter.dev/docs/testing/debugging#print-and-debugprint-with-flutter-logs
}