Reference documentation

go/androidx/reference_documentation

Our reference docs (Javadocs and KotlinDocs) are published to https://developer.android.com/reference/androidx/packages and may be built locally.

Generate docs

To build API reference docs for both Java and Kotlin source code using Dackka, run the Gradle task:

./gradlew docs

Location of generated refdocs:

  • docs-public (what is published to DAC): {androidx-main}/out/androidx/docs-public/build/docs
  • docs-tip-of-tree: {androidx-main}/out/androidx/docs-tip-of-tree/build/docs

The generated docs are plain HTML pages with links that do not work locally. These issues are fixed when the docs are published to DAC, but to preview a local version of the docs with functioning links and CSS, run:

python3 development/offlinifyDocs/offlinify_dackka_docs.py

You will need to have the bs4 Python package installed. The CSS used is not the same as what will be used when the docs are published.

By default, this command converts the tip-of-tree docs for all libraries. To see more options, run:

python3 development/offlinifyDocs/offlinify_dackka_docs.py --help

Release docs

To build API reference docs for published artifacts formatted for use on d.android.com, run the Gradle command:

./gradlew zipDocs

This will create the artifact {androidx-main}/out/dist/docs-public-0.zip. This command builds docs based on the version specified in {androidx-main-checkout}/frameworks/support/docs-public/build.gradle and uses the prebuilt checked into {androidx-main-checkout}/prebuilts/androidx/internal/androidx/. We colloquially refer to this two step process of (1) updating docs-public and (2) checking in a prebuilt artifact into the prebuilts directory as The Prebuilts Dance. So, to build javadocs that will be published to https://developer.android.com/reference/androidx/packages, both of these steps need to be completed.