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Use the Maven Publish plugin

Android Gradle plugin 3.6.0 and higher include support for the Maven Publish Gradle plugin, which allows you to publish build artifacts to an Apache Maven repository. The Android Gradle plugin creates a component for each build variant artifact in your app or library module that you can use to customize a publication to a Maven repository.

The components that the Android plugin creates depend on whether the module uses the application or library plugin, as described in the table below.

Android Gradle plugin Publication artifact Component name
com.android.library AAR components.variant
com.android.application A ZIP of APK(s), and available ProGuard or R8 mappings files components.variant_apk
com.android.application An Android App Bundle (AAB) components.variant_aab

The following code sample creates a publication for the release and debug build variants of an AAR library. Each publication applies the matching component and customizes attributes of the generated POM, such as the Maven coordinates.

// Because the components are created only during the afterEvaluate phase, you must
// configure your publications using the afterEvaluate() lifecycle method.
afterEvaluate {
    publishing {
        publications {
            // Creates a Maven publication called "release".
            release(MavenPublication) {
                // Applies the component for the release build variant.
                from components.release

                // You can then customize attributes of the publication as shown below.
                groupId = 'com.example.MyLibrary'
                artifactId = 'final'
                version = '1.0'
            }
            // Creates a Maven publication called “debug”.
            debug(MavenPublication) {
                // Applies the component for the debug build variant.
                from components.debug

                groupId = 'com.example.MyLibrary'
                artifactId = 'final-debug'
                version = '1.0'
            }
        }
    }

To create a publication that publishes your app as either a ZIP file of APKs or an Android App Bundle (AAB), simply use the appropriate component, as shown below.

afterEvaluate {
    publishing {
        publications {
            paidRelease(MavenPublication) {
              // The following applies a component to this publication
              // which results in publishing an app bundle.
              from components.paidRelease_aab

              groupId = 'com.example.MyApp'
              artifactId = 'paid-release-aab'
              version = '1.0'
            }
            paidDebug(MavenPublication) {
              // The following applies a component to this publication
              // which results in publishing APKs in a ZIP file.
              from components.paidDebug_apk

              groupId = 'com.example.MyApp'
              artifactId = 'paid-debug-apks'
              version = '1.0'
            }
        }
    }

After you create publications, the Maven Publish plugin creates publishing tasks that you can use to publish your artifact to the repositories that you specify.