webview loading local html5

Working code below to load Chinese contents, a1.html is in src/main/assets



@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_item_detail, container, false);
        WebView myWebView =  ((WebView) rootView.findViewById(R.id.website_detail));
        // Show the dummy content as text in a TextView.
        if (mItem != null) {
            WebSettings settings = myWebView.getSettings();
            settings.setDefaultTextEncodingName("utf-8");
            settings.setSupportZoom(true);
            settings.setBuiltInZoomControls(true);
            //myWebView.loadUrl(mItem.website_url);
            myWebView.loadUrl("file:///android_asset/a1.html");
            // line below will set web page inside web view
            myWebView.setWebViewClient(new WebViewClient());
        }

        return rootView;
    }

Code listing at the bottom is the complete code include hiding the zoom control on the UI.

below is what I have researched links:

http://stackoverflow.com/questions/5125851/enable-disable-zoom-in-android-webview

http://stackoverflow.com/questions/18602676/android-studio-how-to-load-html5-content-from-a-local-path-using-webview

http://myexperiencewithandroid.blogspot.de/2011/09/android-loaddatawithbaseurl.html

http://blog.tourizo.com/2009/02/how-to-display-local-file-in-android.html

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http://www.techjini.com/blog/2009/01/10/android-tip-1-contentprovider-accessing-local-file-system-from-webview-showing-image-in-webview-using-content/

I think if your HTML data can have a link like

<img src=content://com.tourizo.android.localfile/foo.jpg>

-------------------------------------------------------------

final String mimeType = "text/html";
final String encoding = "utf-8";
WebView wv;
try {
InputStream is = getAssets().open("test.html");
int size = is.available();
// Read the entire asset into a local byte buffer.
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
// Convert the buffer into a string.
String strContent = new String(buffer);

wv = (WebView) findViewById(R.id.webview);
wv.loadData(strContent, mimeType, encoding);
} catch (IOException e) {
// Should never happen!
throw new RuntimeException(e);
}
}

-------------------------------------------------------------

package com.example.greg.masterdetailflow;

import android.os.Bundle;

import android.app.Fragment;

import android.view.LayoutInflater;

import android.view.MotionEvent;

import android.view.View;

import android.view.ViewGroup;

import android.webkit.WebSettings;

import android.webkit.WebViewClient;

import android.widget.TextView;

import android.webkit.WebView;

import android.widget.ZoomButtonsController;

import com.example.greg.masterdetailflow.dummy.DummyContent;

/**

 * A fragment representing a single Item detail screen.

 * This fragment is either contained in a {@link ItemListActivity}

 * in two-pane mode (on tablets) or a {@link ItemDetailActivity}

 * on handsets.

 */

public class ItemDetailFragment extends Fragment {

    ZoomButtonsController zoom_control = null;

    /**

     * The fragment argument representing the item ID that this fragment

     * represents.

     */

    public static final String ARG_ITEM_ID = "item_id";

    /**

     * The dummy content this fragment is presenting.

     */

    private DummyContent.DummyItem mItem;

    /**

     * Mandatory empty constructor for the fragment manager to instantiate the

     * fragment (e.g. upon screen orientation changes).

     */

    public ItemDetailFragment() {

    }

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        if (getArguments().containsKey(ARG_ITEM_ID)) {

            // Load the dummy content specified by the fragment

            // arguments. In a real-world scenario, use a Loader

            // to load content from a content provider.

            mItem = DummyContent.ITEM_MAP.get(getArguments().getString(ARG_ITEM_ID));

        }

    }

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.fragment_item_detail, container, false);

        WebView myWebView =  ((WebView) rootView.findViewById(R.id.website_detail));

        // Show the dummy content as text in a TextView.

        if (mItem != null) {

            final WebSettings settings = myWebView.getSettings();

            settings.setDefaultTextEncodingName("utf-8");

            settings.setSupportZoom(true);

            settings.setBuiltInZoomControls(true);

            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {

                // Use the API 11+ calls to disable the controls

                settings.setBuiltInZoomControls(true);

                settings.setDisplayZoomControls(false);

            } else {

                // Use the reflection magic to make it work on earlier APIs

                getControls();

            }

            if (zoom_control!=null && zoom_control.getZoomControls()!=null)

            {

                // Hide the controlls AFTER they where made visible by the default implementation.

                zoom_control.getZoomControls().setVisibility(View.GONE);

            }

            //myWebView.loadUrl(mItem.website_url);

            myWebView.loadUrl("file:///android_asset/a1.html");

            // line below will set web page inside web view

            myWebView.setWebViewClient(new WebViewClient());

        }

        return rootView;

    }

    private void getControls() {

        try {

            Class webview = Class.forName("android.webkit.WebView");

            //Method method = webview.getMethod("getZoomButtonsController");

            zoom_control = (ZoomButtonsController) webview.getMethod("getZoomButtonsController").invoke(this, null);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}