How to interact with an android code using webpages?

Here is what I am doing:

I'm building a webpage which I'm going to use in [an] android [app] for [the main] UI.

I want [to] interact with the android code while working the webpage. What I need is when I click a button on the webpage on an android phone a piece of android code should get executed. Normally we use direct buttons from android but in this app I n开发者_开发问答eed it that way.

Please drop in any suggestions.

Thank you

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You need to read the documentation: Building Web Apps in WebView