How to post data for WebView android

Try like below...

Java:

 WebView webview = new WebView(this);
 setContentView(webview);

 String url = "http://www.example.com";

 String postData = "username=" + URLEncoder.encode(my_username, "UTF-8") + "&password=" + URLEncoder.encode(my_password, "UTF-8");
 webview.postUrl(url,postData.getBytes());

Kotlin:

val webview = WebView(this)
setContentView(webview)

val url = "http://www.example.com"

val postData = "username=${URLEncoder.encode(my_username, "UTF-8")}" +
"&password=${URLEncoder.encode(my_password, "UTF-8")}"
webview.postUrl(url, postData.toByteArray())

This is a simple workaround.

String html = "<!DOCTYPE html>" +
    "<html>" +
    "<body onload='document.frm1.submit()'>" +
    "<form action='http://www.yoursite.com/postreceiver' method='post' name='frm1'>" +
    "  <input type='hidden' name='foo' value='12345'><br>" +
    "  <input type='hidden' name='bar' value='23456'><br>" +
    "</form>" +
    "</body>" +
    "</html>";
webview.loadData(html, "text/html", "UTF-8");

I know this is not the best method but this works.

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Android

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Android Webview

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