How I Change Default Generated APK File Name

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When we build and generate new APK file using Android Studio or gradle command line, it has default file names such as app-dev-debug.apk or app-prod-release.apk . Sometimes we need to rename it for better historical documentation, like including the version number and application name.

Assume your build configuration has buildTypes and productFlafors setup.

buildTypes {
    getByName("release") {
        ...
    }
    getByName("debug") {
        ...
    }
}

flavorDimensions.add("mode")
productFlavors {
    create("prod") {
        ...
    }
    create("dev") {
        ...
    }
}

Update your build.gradle.kts file by adding this code on android block.

applicationVariants.all {
    val variant = this
    variant.outputs
        .map { it as com.android.build.gradle.internal.api.BaseVariantOutputImpl }
        .filter {
            val names = it.name.split("-")
            it.name.lowercase().contains(names[0], true) && it.name.lowercase().contains(names[1], true)
        }
        .forEach { output ->
            val outputFileName = "awesomeapp_${variant.flavorName}_${variant.buildType.name}_${variant.versionName}.apk"
            output.outputFileName = outputFileName
        }
}

• Here we get all our application variants and then iterate through their output names.