Flutter android flavors generate apk

Question

I am trying to set up Android flavors with flutter.

I have two entry points.

lib/main_prod.dart
lib/main_dev.dart

I have also added the following to my gradle file

flavorDimensions "version"
productFlavors {
    prod {
        dimension "version"
        applicationIdSuffix ".prod"
    }
    dev {
        dimension "version"
        applicationIdSuffix ".dev"
        versionNameSuffix " Dev"
    }
}

Now I am trying to generate two separate apk which I can use to publish to the Google Play Store.

I go on Android Studio and try generate these.

However I get this error.

Android Studio is still trying to look for the main.dart file, however, for my two flavors they are main_prod.dart and main_dev.dart. How do I tell Android Studio to look for the approperiate main file depending on the flavor im trying to get the apk file for.

JideGuru · Accepted Answer · 2022-01-27T11:16:01.777

105

To build apk or appbundle(to publish to the playstore) for each flavor you can use the commands(recommended) instead of using android studio.

For prod you can use:

APK

flutter build apk --flavor prod -t lib/main_prod.dart

App Bundle

flutter build appbundle --flavor prod -t lib/main_prod.dart

and for dev

APK

flutter build apk --flavor dev -t lib/main_dev.dart

App Bundle

flutter build appbundle --flavor dev -t lib/main_dev.dart

edited Jan 27 '22 at 11:16

answered Jul 28 '20 at 13:07

JideGuru

7,102
6
26
48

2

Thanks for your answer. For me "appBundle" didn´t work. It must be "appbundle" instead. – railon Dec 03 '20 at 14:39
1

How to generate app bundle with keys(Play app signing)? – BLB Jun 01 '21 at 14:48
@BLB for generating appbundle, try flutter build appbundle -t lib/main_dev.dart – CHIRAG SAHU Feb 23 '23 at 10:53
@jideGuru is there any way to generate build for iOS platform while including param "-t lib/main.dart" – CHIRAG SAHU Feb 23 '23 at 10:54
@JideGuru how we can set main.dart file to their respective build variants instead of this commands? – Vishal Zaveri Jul 27 '23 at 07:39

score 5 · Answer 2 · answered Nov 08 '22 at 22:11

The above command will work for release builds, but for the debug builds, you may need to use this command:

flutter build apk -t lib/main_dev.dart --flavor=dev --debug

Otherwise, it may throw this error:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:validateSigningDevRelease'.
> Keystore file not set for signing config release

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 5s
Running Gradle task 'assembleDevRelease'...                     6.6s
Gradle task assembleDevRelease failed with exit code 1

score 3 · Answer 3 · answered Mar 20 '23 at 10:21

3

Simply for prod environment flutter build apk -t lib/main_prod.dart --release for release apk and flutter build apk -t lib/main_prod.dart --debug for debug apk should work.

answered Mar 20 '23 at 10:21

Fahmida

1,050
8
19

Flutter android flavors generate apk

3 Answers3

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