android - Encoding issue with WebView's loadData

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android - Encoding issue with WebView's loadData

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

android - Encoding issue with WebView's loadData

I'm loading some data, containing latin-1 characters, in a WebView using

String uri = Uri.encode(html);
webview.loadData(uri, "text/html", "ISO-8859-1");

When displayed, the latin1 characters are replaced by weird characters.

If I load the html directly in a TextView (just to test), latin characters are properly displayed.

Anybody can help?

Thanks

html:

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.0//EN" "http://www.wapforum.org/DTD/xhtml-mobile10.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

    <!-- some html -->

</html>

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1 Answer

深蓝 · Answer 1 · 2021-10-23T17:51:30+0000

myWebView.loadData(myHtmlString, "text/html; charset=UTF-8", null);

This works flawlessly, especially on Android 4.0, which apparently ignores character encoding inside HTML.

Tested on 2.3 and 4.0.3.

In fact, I have no idea about what other values besides "base64" does the last parameter take. Some Google examples put null in there.

You should always use UTF-8 encoding. Every other character encoding has become obsolete for many years already.

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