Android Webview : tel and whatsApp ERR_UNKNOWN_URL_SCHEME problem fix source code

Job ID: 31410795

Budget: $10 – $30 USD

On my webpage there is a support button for Call and WhatsApp (this one: https://getbutton.io/)

Everything works fine without any problems. But if I'm running via my app (traccar modified app: https://github.com/traccar/traccar-manager-android) I get an error message when i click on support button whatsApp or Telephone "net::ERR_UNKNOWN_URL_SCHEME".

Need someone to fix WhatsApp sheme and Tel sheme on my android app so when its clicked that works normally just like its on the web page view and please to explain to me which source code and where to implement it because I will need it in the future.

Need someone who can provide me with a source code for this solution.