How do I build different versions of my Flutter app for qa/dev/prod?

Question

I am building a Flutter app, and I have variables with different values for different environments (QA, dev, prod, etc). What\'s a good way to organize my app so I can easil

Answer 1

The cleaner way to do this is through Build Flavors.

As a quick example, if you want to have a different app id for your app for your "dev" build, you could have this in the gradle file:

flavorDimensions "version"
productFlavors {
    dev {
        applicationIdSuffix ".dev"
        versionNameSuffix "-dev"
    }
}

Read more about gradle build variant configuration here.

---

Now you can run with this build variant with command line:

flutter run --flavor dev

If you are using Android Studio, you can set the build variant in the Run configuration too:

Read more about iOS configuration on this blog. And official flutter documentation about build flavours.

Answer 2

One way to do it: create different main_<environment>.dart files in the lib/ directory of your project.

Each main_<environment>.dart contains the environment-specific configurations/values (such as the different database names, etc). Each main_<environment>.dart then imports the actual application library and runs the application, passing in the environment's values/configurations.

Then, choose which .dart file to build: flutter run -t lib/main_debug.dart

Answer 3

import 'package:flutter/foundation.dart';

And use following const values:

if (kReleaseMode) {
  // App is running in release mode. 
} else if (kProfileMode) {
  // App is running in profile mode.
} else if (kDebugMode) {
  // App is running in debug mode.
} else if (kIsWeb) {
  // App is running on the web.
}