<ul><li>Meta engineers have been translating their 10 million line Android codebase from Java to Kotlin.</li><li>They have developed a tool called Kotlinator to automate the conversion process as much as possible.</li><li>The process involves pre- and post-conversion steps to ensure the converted code can build and eliminate nullability issues.</li><li>Meta's journey to make their codebase 100% Kotlin is still ongoing, but it provides valuable insights into transforming Kotlin code programmatically.</li></ul>

How Meta Ported Million Lines of Android Code from Java to Kotlin

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