flutter build release

https://medium.com/flutterpub/flutter-andorid-keystore-path-on-different-os-d0fc30a24d4f

https://blog.csdn.net/joye123/article/details/94588949

signingConfig signingConfigs.release

Important is signingConfig signingConfigs.debug -> signingConfig signingConfigs.release

    signingConfigs {
       release {
           keyAlias keystoreProperties['keyAlias']
           keyPassword keystoreProperties['keyPassword']
           storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
           storePassword keystoreProperties['storePassword']
       }
    }
    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.release

            minifyEnabled true
            useProguard true
        }
    }
}