Implement Lucene Search in Android App – How to make it work

I created an Android app for World Health Organization long ago. I made different kinds of search engines before with full-text indexing. This time I wanted to do something different. I had only 4 days to make the app. They had different kinds of contents like

  1. html
  2. Plain text files
  3. PDF files

And they needed a search engine to search all the contents and show a unified result set ( Showing results in a same page with relevancy ). Now I could implement it in SQLite, but that would mean a lot of task and the gain would be much lesser than a document-based search engine like Apache Lucene.

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