Sending data from Android to JavaScript?

Question

Android

Comrades welcome! Help me please.
The Internet is full of examples of passing data from java to javascript via @javascriptiterface in which javascript is the initiator. But I did not find that android sent some data to javascript. Can you tell me who did something like this?
For example, sending GPS data not on request from JS, but automatically when changing position.
You can use a simple example. Thank you.

Answer 1

myWebView.loadUrl("javascript:test()");and declare the function in javascript:function test(){}

Answer 2

Look towards Sockets/WebSockets.