Absolutely, your proposed setup is perfectly valid and exactly how you should handle this scenario! You can directly tie each product flavor to its corresponding module using variant-specific dependency configurations in Gradle, which will let you load flavor-specific AARs while keeping your common AARs intact.

Step 1: Confirm Your Flavor & Dependency Configuration #

Your initial code snippet is on the mark—using flavor1Implementation, flavor2Implementation, etc., is the correct way to link each flavor to its exclusive module. These variant-specific dependencies only get included when building that particular flavor, so you won’t have cross-flavor contamination.

Here’s how your full productFlavors and dependencies blocks might look in your app module’s build.gradle:

android {
    // ... other configs like compileSdk, defaultConfig, etc.

    productFlavors {
        flavor1 {
            applicationIdSuffix ".flav1"
            resValue "string", "app_name", "App-Flav1"
        }
        flavor2 {
            applicationIdSuffix ".flav2"
            resValue "string", "app_name", "App-Flav2"
        }
        flavor3 {
            applicationIdSuffix ".flav3"
            resValue "string", "app_name", "App-Flav3"
        }
    }
}

dependencies {
    // Common AARs for all flavors (from app/libs)
    implementation fileTree(dir: 'libs', include: ['*.aar'])

    // Flavor-specific module dependencies
    flavor1Implementation project(':flav1Module')
    flavor2Implementation project(':flav2Module')
    flavor3Implementation project(':flav3Module')

    // ... other common dependencies like androidx libraries, etc.
}

Step 2: Configure Each Flavor Module #

For each of your flavXModule library modules, make sure their build.gradle is set up to include their flavor-specific AARs:

apply plugin: 'com.android.library'

android {
    // Match compileSdk, minSdk, etc., to your app module
    compileSdk 34

    defaultConfig {
        minSdk 21
        targetSdk 34
    }
}

dependencies {
    // Include the flavor-specific AAR from the module's libs directory
    implementation fileTree(dir: 'libs', include: ['*.aar'])
}

Step 3: How the Override Works #

Great news—Gradle handles the "overlay" behavior automatically for you:

• If a common AAR (from app/libs) and a flavor-specific AAR (from flavXModule/libs) have the same name, the flavor-specific one will take precedence. This is because variant-specific dependencies (like flavor1Implementation) have higher priority than the main implementation configuration.
• All common AARs that don’t have a flavor-specific counterpart will still be included for every flavor.

Key Notes to Avoid Issues #

• Ensure each flavor module is marked as a Library Module (not an app module) in Android Studio—this ensures it gets built as a consumable dependency for your app module.
• Double-check that your flavor-specific AARs are properly built for their target package names (matching the applicationId of each flavor) to avoid runtime issues.
• If you’re using Kotlin DSL, the syntax is slightly different (e.g., flavor1Implementation(project(":flav1Module"))), but the logic remains identical.

This setup will give you exactly what you need: a shared base of common AARs, with flavor-specific versions overriding them where necessary, all tied directly to your product flavor configurations.

内容的提问来源于stack exchange，提问作者bobbymcsteels