I need to post data to Webview.
I found from some of the links the below code:
WebView webview = new WebView(this);
setContentView(webview);
String url = "http://www.example.com";
String postData = username=my_username&password=my_password";
webview.postUrl(url",EncodingUtils.getBytes(postData, "BASE64"));
But in my android studio I see EncodingUtils as deprecated
Can anyone help me what is the alternative for EncodingUtils to post data to Android WebView?
Try like below...
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());
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.
try this: You need to URL-encode the parameter value before sending it.
String postData = "fileContents=" + URLEncoder.encode(fileCon, "UTF-8");
来源：https://stackoverflow.com/questions/39506246/how-to-post-data-for-webview-android