I have to load an existing html file into a WebView that is located at this path in the file system:
/data/data/com.example.example/files/file.
The html file should be placed in the assets folder, which will belong in the root directory of your project.
So move your file to in case of eclipse
assets/index.html
In an Android Studio project use this folder:
/app/src/main/assets/index.html
Now use
WebView wv= (WebView)findViewById(R.id.webView1);
wv.loadUrl("file:///android_asset/index.html");