amber/examples/android/helloamber/src/org/amberlang/android/helloamber/HelloAmber.java

package org.amberlang.android.helloamber;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.webkit.ConsoleMessage;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;


public class HelloAmber extends Activity
{
    private static final String TAG = "HelloAmber";

    private WebView mWebView;

    private class HelloWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    }

    private class HelloWebChromeClient extends WebChromeClient {
        @Override
        public boolean onConsoleMessage(ConsoleMessage cm) {
            Log.d(TAG, cm.message()
                    + " -- " + cm.messageLevel()
                    + " From line " + cm.lineNumber()
                    + " of " + cm.sourceId() );
            return true;
        }
    }

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mWebView = (WebView) findViewById(R.id.webview);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.setWebViewClient(new HelloWebViewClient());
        mWebView.setWebChromeClient(new HelloWebChromeClient());
        mWebView.loadUrl("file:///android_asset/index.html");
    } 

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
            mWebView.goBack();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }
}