{"id":3806,"date":"2025-12-23T10:00:06","date_gmt":"2025-12-23T15:00:06","guid":{"rendered":"https:\/\/www.mymiller.name\/wordpress\/?p=3806"},"modified":"2025-12-23T10:00:06","modified_gmt":"2025-12-23T15:00:06","slug":"sharing-is-caring-publishing-your-android-library-to-maven-central-with-gradle","status":"publish","type":"post","link":"https:\/\/www.mymiller.name\/wordpress\/gradle\/sharing-is-caring-publishing-your-android-library-to-maven-central-with-gradle\/","title":{"rendered":"Sharing is Caring: Publishing Your Library to Maven Central with Gradle"},"content":{"rendered":"\n<div class=\"wp-block-jetpack-markdown\"><p>You\u2019ve built an awesome library, and now you want to share it with the world!  Publishing to Maven Central makes your library easily accessible to developers through Gradle, Maven, and other build tools.<\/p>\n<p>This guide walks you through the process of publishing your Android library to Maven Central using both Groovy and Kotlin DSL in your Gradle builds.<\/p>\n<p><strong>1. Set Up Your Sonatype Account<\/strong><\/p>\n<p>Maven Central is hosted by Sonatype. You\u2019ll need to create a Sonatype account and a JIRA ticket to request permission to publish your library.<\/p>\n<ul>\n<li><strong>Create an Account:<\/strong> Head over to <a href=\"https:\/\/issues.sonatype.org\/secure\/Signup!default.jspa\">Sonatype\u2019s JIRA<\/a> and sign up.<\/li>\n<li><strong>Create a JIRA Ticket:<\/strong> After logging in, create a new issue in the \u201cCommunity Support &#8211; Open Source Project Repository Hosting (OSSRH)\u201d project.\n<ul>\n<li>Request access to publish your library.<\/li>\n<li>Provide your Group ID (usually your domain name in reverse, e.g., <code>com.example<\/code>).<\/li>\n<li>Sonatype will review your request and grant you access.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>2. Prepare Your Library<\/strong><\/p>\n<ul>\n<li><strong><code>build.gradle<\/code> (Groovy) or <code>build.gradle.kts<\/code> (Kotlin)<\/strong>\n<ul>\n<li><strong>Apply Plugins:<\/strong><pre><code class=\"language-groovy\">plugins {\n    id 'maven-publish'\n    id 'signing' \/\/ For signing your artifacts\n}\n<\/code><\/pre>\n<\/li>\n<li><strong>Project Information:<\/strong><pre><code class=\"language-groovy\">group = &quot;com.yourdomain.yourlibrary&quot; \/\/ Replace with your Group ID\nversion = &quot;1.0.0&quot; \/\/ Your library's version\n\nandroid {\n    \/\/... your Android configurations\n}\n<\/code><\/pre>\n<\/li>\n<li><strong>Publishing Configuration:<\/strong><pre><code class=\"language-groovy\">afterEvaluate {\n    publishing {\n        publications {\n            release(MavenPublication) {\n                from components.release \n                groupId = &quot;com.yourdomain.yourlibrary&quot;\n                artifactId = 'your-library-name' \/\/ Replace with your artifact ID\n                version = '1.0.0' \n\n                pom {\n                    name = 'Your Library Name'\n                    description = 'A description of your library'\n                    url = 'https:\/\/github.com\/your-github\/your-library' \/\/ Your project URL\n                    licenses {\n                        license {\n                            name = 'The Apache License, Version 2.0'\n                            url = 'http:\/\/www.apache.org\/licenses\/LICENSE-2.0.txt'\n                        }\n                    }\n                    developers {\n                        developer {\n                            id = 'your-github-username'\n                            name = 'Your Name'\n                            email = 'your.email@example.com'\n                        }\n                    }\n                    scm {\n                        connection = 'scm:git:github.com\/your-github\/your-library.git'\n                        developerConnection = 'scm:git:ssh:\/\/github.com\/your-github\/your-library.git'\n                        url = 'https:\/\/github.com\/your-github\/your-library' \n                    }\n                }\n            }\n        }\n        repositories {\n            maven {\n                name = &quot;sonatype&quot;\n                url = &quot;https:\/\/s01.oss.sonatype.org\/service\/local\/staging\/deploy\/maven2\/&quot;\n                credentials {\n                    username = System.getenv(&quot;OSSRH_USERNAME&quot;) \/\/ Set these environment variables\n                    password = System.getenv(&quot;OSSRH_PASSWORD&quot;)\n                }\n            }\n        }\n    }\n}\n\nsigning {\n    sign publishing.publications.release\n}\n<\/code><\/pre>\n<\/li>\n<li><strong>Kotlin DSL (<code>build.gradle.kts<\/code>)<\/strong><pre><code class=\"language-kotlin\">\/\/... (Similar to Groovy, but with Kotlin syntax)\npublishing {\n    publications {\n        create&lt;MavenPublication&gt;(&quot;release&quot;) {\n            \/\/... (configure publication as above)\n        }\n    }\n    \/\/... (repositories and signing)\n}\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>Generate a GPG Key:<\/strong> You\u2019ll need a GPG key to sign your artifacts. Follow the instructions in the <a href=\"https:\/\/central.sonatype.org\/publish\/requirements\/gpg\/\">Maven Central Guide<\/a> to generate one.<\/li>\n<li><strong>Upload Your Public Key:<\/strong> Upload your public key to a keyserver (e.g., <a href=\"https:\/\/keyserver.ubuntu.com\/\">keyserver.ubuntu.com<\/a>).<\/li>\n<\/ul>\n<p><strong>3. Publish Your Library<\/strong><\/p>\n<ul>\n<li><strong>Set Environment Variables:<\/strong> Set the <code>OSSRH_USERNAME<\/code> and <code>OSSRH_PASSWORD<\/code> environment variables with your Sonatype credentials.<\/li>\n<li><strong>Run Gradle Tasks:<\/strong>\n<ul>\n<li><code>.\/gradlew publishReleasePublicationToSonatypeRepository<\/code> (or the equivalent for your setup)<\/li>\n<li>This will build your library, sign it, and upload it to Sonatype\u2019s staging repository.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>4. Release to Maven Central<\/strong><\/p>\n<ul>\n<li><strong>Close and Release:<\/strong> Log in to the <a href=\"https:\/\/s01.oss.sonatype.org\/\">Sonatype Nexus Repository Manager<\/a>.\n<ul>\n<li>Find your staged repository.<\/li>\n<li>Close it (this performs some checks).<\/li>\n<li>Release it.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Sync to Maven Central:<\/strong> It may take a few hours for your library to appear in Maven Central after it\u2019s released from the staging repository.<\/li>\n<\/ul>\n<p><strong>Congratulations!<\/strong> You\u2019ve successfully published your Android library to Maven Central. Now, developers around the world can easily include it in their projects.<\/p>\n<p><strong>Important Notes:<\/strong><\/p>\n<ul>\n<li><strong>Documentation:<\/strong> Include clear documentation (README, Javadocs, etc.) with your library.<\/li>\n<li><strong>Versioning:<\/strong> Follow semantic versioning principles (major.minor.patch).<\/li>\n<li><strong>Testing:<\/strong> Thoroughly test your library before publishing.<\/li>\n<\/ul>\n<p>By following these steps, you can share your Android library with the world and contribute to the vibrant open-source ecosystem. Happy publishing!<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":3807,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[460],"tags":[462,461,463],"series":[],"class_list":["post-3806","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gradle","tag-gradle","tag-library","tag-publish"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.mymiller.name\/wordpress\/wp-content\/uploads\/2025\/01\/shelf-159852_1280-png.avif","jetpack-related-posts":[{"id":3802,"url":"https:\/\/www.mymiller.name\/wordpress\/gradle\/taming-version-chaos-with-gradle-version-catalogs\/","url_meta":{"origin":3806,"position":0},"title":"Taming Version Chaos with Gradle Version Catalogs","author":"Jeffery Miller","date":"April 20, 2026","format":false,"excerpt":"Keeping track of dependencies and their versions across a project can quickly become a nightmare, especially as your project grows. 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