How to set different applicationId for each flavor combination using flavorDimensions when using Gradle Kotlin-DSL?

android, gradle, gradle-kotlin-dsl

Solution

Google added the variants API with the Android Gradle Plugin 7.0.0. With it we can alter the `applicationId`.

android {
    flavorDimensions.addAll(listOf("price", "dataset"))

    productFlavors {
        create("free") { dimension = "price" }
        create("pro") { dimension = "price" }
        create("dataset1") { dimension = "dataset" }
        create("dataset2") { dimension = "dataset" }
    }
}

androidComponents {
    onVariants { variant ->
        val applicationId = when(variant.flavorName) {
            "freeDataset1" -> "com.beansys.freeappdataset1"
            "freeDataset2" -> "com.beansys.freedataset2"
            "proDataset1" -> "com.beansys.dataset1paid"
            "proDataset2" -> "com.beansys.mypaiddataset2"
            else -> throw(IllegalStateException("Whats your flavor? ${variant.flavorName}!"))
        }
        variant.applicationId.set(applicationId)
    }
}

Note that it is probably better to use a task to determine the `applicationId`.

For more informations see the following resources:

- https://developer.android.com/studio/releases/gradle-plugin#variant-api-stable

- https://youtu.be/AZBW5StgF8o?t=240

Problem

I am converting an Android app to the Gradle Kotlin-DSL by using Kotlinscript files. I have a problem converting our `applicationId` logic. We don't use the `defaultConfiguration` with `applicationId` plus various `applicationIdSuffix` for our flavors but a custom logic. The logic is described in this SO answer, here is the groovy code: ``` flavorDimensions "price", "dataset" productFlavors { free { dimension "price" } paid { dimension "price" } dataset1 { dimension "dataset" } dataset2 { dimension "dataset" } } android.applicationVariants.all { variant -> def mergedFlavor = variant.mergedFlavor switch (variant.flavorName) { case "freeDataset1": mergedFlavor.setApplicationId("com.beansys.freeappdataset1") break case "freeDataset2": mergedFlavor.setApplicationId("com.beansys.freedataset2") break case "paidDataset1": mergedFlavor.setApplicationId("com.beansys.dataset1paid") break case "paidDataset2": mergedFlavor.setApplicationId("com.beansys.mypaiddataset2") break } } ``` With kotlin I cannot alter the `applicationId` of the `mergedFlavor` like in groovy. It is a val and therefore can't be changed. Any elegant solution to solve this?

Original source

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