这可能有助于

https://groups.google.com/group/android-developers/browse_thread/thread/e20e87d2faf9ff41?pli=1#

  webview.loadDataWithBaseURL（文件：/// android_asset /，HTML，text / html的，
UTF-8，NULL）;
 

I'm trying to load an html page from a server the page contains a script that links to android sdcard .js file.

Java:

String url ="http://192.168.84.86:8080/test/maw/js_load_test.html";
this.loadUrl(url);

js_load_test.html:

<script src="file:///sdcard/test.js"></script>

I've also tried :

<script src="file:///android_asset/www/js/test.js"></script>

test.js file exists and js file path is correct. But in logcat: file:///sdcard/test.js:

03-18 13:01:12.467: E/Web Console(26189): Not allowed to load local resource: file:///sdcard/test.js at :0

file:///android_asset/www/js/test.js:

03-18 13:01:53.467: E/Web Console(26189): Not allowed to load local resource: file:///android_asset/www/js/test.js at :0

This may help

https://groups.google.com/group/android-developers/browse_thread/thread/e20e87d2faf9ff41?pli=1#

webview.loadDataWithBaseURL( "file:///android_asset/", html, "text/html", 
"utf-8", null );