MinSDK version is 15... I think we need 16 if allowing local file access.

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="io.soundtrack"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-permission android:name="android.permission.INTERNET" />    
    
    <uses-sdk
        android:minSdkVersion="15"
        android:targetSdkVersion="17" />

    <application
        android:hardwareAccelerated="true"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="io.soundtrack.YourActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

YourActivityClassThing.java

public class YourActivity extends Activity {
  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        WebView myWebView = (WebView) findViewById(R.id.webview);
        WebSettings webSettings = myWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        webSettings.setRenderPriority(WebSettings.RenderPriority.HIGH);
        //webSettings.setAllowFileAccessFromFileURLs(true); //Maybe you don't need this rule
        webSettings.setAllowUniversalAccessFromFileURLs(true);
 
        myWebView.setWebViewClient(new CustomWebViewClient());
        myWebView.setWebChromeClient(new WebChromeClient() {
          @Override
    		public void onConsoleMessage(String message, int lineNumber,
    				String sourceID) {
    	  	    Log.d("Ermagerd", message + " -- From line "
                          + lineNumber + " of "
                          + sourceID);
    			
    		}

        });
        
        // load a file from ./assets/ -- you can put folders directly here as well (i.e., css/ and js/)
        myWebView.loadUrl("file:///android_asset/index.html");
        
    }

	private class CustomWebViewClient extends WebViewClient {
	    @Override
	    public boolean shouldOverrideUrlLoading(WebView view, String url) {
	    	Log.d("Ermagerd", url);
	        view.loadUrl(url);
	        return true;
	    }

		public void onConsoleMessage(String message, int lineNumber,
				String sourceID) {
	  	    Log.d("Ermagerd", message + " -- From line "
                      + lineNumber + " of "
                      + sourceID);
			
		}
	}
}