Use GetX.

Open setting Dart entrypoint: lib/flavors/main_develop.dart Build flavor: dev

• Add: import java.util.regex.Matcher import java.util.regex.Pattern
• File build.gradle in android {} add: android { ... flavorDimensions "flavors" productFlavors { dev { dimension "flavors" applicationIdSuffix ".dev" } prod { dimension "flavors" applicationIdSuffix "" } } }

out android {}: flutter { source '../..' def flavourName = getCurrentFlavour() if (flavourName == 'dev') { target = 'lib/flavors/main_develop.dart' } else { target = ' lib/flavors/main_production.dart' } }

def getCurrentFlavour() { Gradle gradle = getGradle() String tskReqStr = gradle.getStartParameter().getTaskRequests().toString() Pattern pattern if (tskReqStr.contains("assemble")) pattern = Pattern.compile("assemble(\w+)(Release|Staging|Debug)") else pattern = Pattern.compile("generate(\w+)(Release|Staging|Debug)") Matcher matcher = pattern.matcher(tskReqStr) if (matcher.find()) { def value = matcher.group(1).toLowerCase() return value } else { return "" } }