Android Gradle 插件 3.6.0 及更高版本支持 Maven Publish Gradle 插件， 可让您将构建工件发布到 Apache Maven 代码库。Android Gradle 插件会为应用或库模块中的每个构建变体工件创建一个组件，您可以使用它来自定义要发布到 Maven 代码库的发布内容。

Android 插件所创建的组件取决于模块是否使用应用或库插件，如下表所述。

以下代码示例为 AAR 库的发布和调试构建变体创建了发布内容。每项发布内容都会应用匹配的组件，并自定义所生成 POM 的属性，如 Maven 坐标。

// 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'
            }
        }
    }

参考：

1. https://developer.android.google.cn/studio/build/maven-publish-plugin
2. https://docs.gradle.org/current/userguide/publishing_maven.html

下面是自己使用的脚本：（自带pom.xml，包含依赖关系，只包含Implements类型依赖）

直接执行：module的gradle任务列表中publishing类型下的publish任务

apply plugin: 'maven-publish'
task generateSourcesJar(type: Jar) {
    group = 'jar'
    from android.sourceSets.main.java.srcDirs
    classifier = 'sources'
}
afterEvaluate {
    publishing {
        publications {
            // Creates a Maven publication called "release".
            fuck(MavenPublication) {
                // Applies the component for the release build variant.
                from components.release
                // 上传源码
                artifact generateSourcesJar
                // You can then customize attributes of the publication as shown below.
                groupId = 'com.example.MyLibrary'
                artifactId = 'final'
                version = '1.0'
            }

        }

        repositories {
            maven {
                // change to point to your repo, e.g. http://my.org/repo
                url = "$buildDir/repo"

//                url = "http://my.org/repo"
//                credentials {
//                    username 'chengzhen'
//                    password maven_password
//                }
            }
        }
    }