Android Open Source - guides Web View Activity

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The source code is released under:
GNU General Public License
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Java Source Code

//        Guidebook is an Android application that reads audioguides using Text-to-Speech services.
//        Copyright (C) 2013  Adrin Romero Corchado
////from   w w w  . j  a va  2 s .  c  o m
//        This program is free software: you can redistribute it and/or modify
//        it under the terms of the GNU General Public License as published by
//        the Free Software Foundation, either version 3 of the License, or
//        (at your option) any later version.
//
//        This program is distributed in the hope that it will be useful,
//        but WITHOUT ANY WARRANTY; without even the implied warranty of
//        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//        GNU General Public License for more details.
//
//        You should have received a copy of the GNU General Public License
//        along with this program.  If not, see <http://www.gnu.org/licenses/>.

package com.adrguides;

import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;

/**
 * Created by adrian on 9/10/13.
 */
public class WebViewActivity extends Activity {

    public final static String EXTRA_URL = "EXTRA_URL";
    public final static String EXTRA_TITLE = "EXTRA_TITLE";

    private WebView mWebView;
    private ProgressBar webprogress;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_webview);
        getActionBar().setDisplayHomeAsUpEnabled(true);

        mWebView = (WebView) findViewById(R.id.webView);
        webprogress = (ProgressBar) findViewById(R.id.webProgress);


        WebSettings webSettings = mWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        mWebView.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return true;
            }
            @Override
            public void onPageStarted(WebView view, String url, Bitmap favicon) {
                webprogress.setProgress(0);
                webprogress.setVisibility(View.VISIBLE);
            }
            @Override
            public void onPageFinished(WebView view, String url) {
                webprogress.setVisibility(View.INVISIBLE);
            }
        });
        mWebView.setWebChromeClient(new WebChromeClient(){

            public void onProgressChanged(WebView view, int progress) {
                webprogress.setProgress(progress);
            }
        });

        if (savedInstanceState == null) {
            mWebView.loadUrl(getIntent().getStringExtra(EXTRA_URL));
        } else {
            mWebView.restoreState(savedInstanceState);
        }

        getActionBar().setTitle(getIntent().getStringExtra(EXTRA_TITLE));
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mWebView.saveState(outState);
    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            // Respond to the action bar's Up/Home button
            case android.R.id.home:
                this.finish();
                return true;
        }
        return super.onOptionsItemSelected(item);
    }
}
Java Source Code List
