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/gpl.txt:
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1 | GNU GENERAL PUBLIC LICENSE
2 | Version 3, 29 June 2007
3 |
4 | Copyright (C) 2007 Free Software Foundation, Inc.
5 | Everyone is permitted to copy and distribute verbatim copies
6 | of this license document, but changing it is not allowed.
7 |
8 | Preamble
9 |
10 | The GNU General Public License is a free, copyleft license for
11 | software and other kinds of works.
12 |
13 | The licenses for most software and other practical works are designed
14 | to take away your freedom to share and change the works. By contrast,
15 | the GNU General Public License is intended to guarantee your freedom to
16 | share and change all versions of a program--to make sure it remains free
17 | software for all its users. We, the Free Software Foundation, use the
18 | GNU General Public License for most of our software; it applies also to
19 | any other work released this way by its authors. You can apply it to
20 | your programs, too.
21 |
22 | When we speak of free software, we are referring to freedom, not
23 | price. Our General Public Licenses are designed to make sure that you
24 | have the freedom to distribute copies of free software (and charge for
25 | them if you wish), that you receive source code or can get it if you
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32 | you modify it: responsibilities to respect the freedom of others.
33 |
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40 | Developers that use the GNU GPL protect your rights with two steps:
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343 | 7. Additional Terms.
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345 | "Additional permissions" are terms that supplement the terms of this
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407 | 8. Termination.
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435 | 9. Acceptance Not Required for Having Copies.
436 |
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446 | 10. Automatic Licensing of Downstream Recipients.
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468 | any patent claim is infringed by making, using, selling, offering for
469 | sale, or importing the Program or any portion of it.
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471 | 11. Patents.
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473 | A "contributor" is a copyright holder who authorizes use under this
474 | License of the Program or a work on which the Program is based. The
475 | work thus licensed is called the contributor's "contributor version".
476 |
477 | A contributor's "essential patent claims" are all patent claims
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521 | A patent license is "discriminatory" if it does not include within
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523 | conditioned on the non-exercise of one or more of the rights that are
524 | specifically granted under this License. You may not convey a covered
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526 | in the business of distributing software, under which you make payment
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534 | or that patent license was granted, prior to 28 March 2007.
535 |
536 | Nothing in this License shall be construed as excluding or limiting
537 | any implied license or other defenses to infringement that may
538 | otherwise be available to you under applicable patent law.
539 |
540 | 12. No Surrender of Others' Freedom.
541 |
542 | If conditions are imposed on you (whether by court order, agreement or
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547 | not convey it at all. For example, if you agree to terms that obligate you
548 | to collect a royalty for further conveying from those to whom you convey
549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 |
552 | 13. Use with the GNU Affero General Public License.
553 |
554 | Notwithstanding any other provision of this License, you have
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559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 |
563 | 14. Revised Versions of this License.
564 |
565 | The Free Software Foundation may publish revised and/or new versions of
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567 | be similar in spirit to the present version, but may differ in detail to
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573 | option of following the terms and conditions either of that numbered
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579 | If the Program specifies that a proxy can decide which future
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584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 |
635 | Copyright (C)
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | Copyright (C)
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
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/ic_launcher-web.png:
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/proguard-project.txt:
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1 | # To enable ProGuard in your project, edit project.properties
2 | # to define the proguard.config property as described in that file.
3 | #
4 | # Add project specific ProGuard rules here.
5 | # By default, the flags in this file are appended to flags specified
6 | # in ${sdk.dir}/tools/proguard/proguard-android.txt
7 | # You can edit the include path and order by changing the ProGuard
8 | # include property in project.properties.
9 | #
10 | # For more details, see
11 | # http://developer.android.com/guide/developing/tools/proguard.html
12 |
13 | # Add any project specific keep options here:
14 |
15 | # If your project uses WebView with JS, uncomment the following
16 | # and specify the fully qualified class name to the JavaScript interface
17 | # class:
18 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
19 | # public *;
20 | #}
21 |
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/project.properties:
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1 | # This file is automatically generated by Android Tools.
2 | # Do not modify this file -- YOUR CHANGES WILL BE ERASED!
3 | #
4 | # This file must be checked in Version Control Systems.
5 | #
6 | # To customize properties used by the Ant build system edit
7 | # "ant.properties", and override values to adapt the script to your
8 | # project structure.
9 | #
10 | # To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
11 | #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
12 |
13 | # Project target.
14 | target=android-17
15 |
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/res/drawable-ldpi/ic_launcher.png:
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/res/layout/history.xml:
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1 |
2 |
21 |
27 |
28 |
35 |
36 |
43 |
44 |
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/res/layout/main.xml:
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1 |
2 |
21 |
25 |
26 |
32 |
33 |
38 |
39 |
45 |
46 |
47 |
51 |
52 |
62 |
63 |
73 |
74 |
83 |
84 |
93 |
94 |
103 |
104 |
112 |
113 |
122 |
123 |
124 |
125 |
131 |
132 |
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/res/values-es/strings.xml:
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1 |
2 |
21 |
22 |
23 | WebView Demo
24 | Atrás
25 | Siguiente
26 | Detener
27 | Ir
28 | OK
29 | Historial
30 | Cancelar
31 | Descarga
32 | ¿Desea guardar este fichero?
33 | Fichero guardado:
34 | Borrar
35 | Cerrar
36 | deteniendo
37 | favicon
38 | La conexión a Internet no se encuentra disponible
39 | Error
40 | Almacenamiento no disponible
41 |
42 |
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/res/values/strings.xml:
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1 |
2 |
21 |
22 |
23 | WebView Demo
24 | Back
25 | Forward
26 | Stop
27 | History
28 | Go
29 | OK
30 | Cancel
31 | Download
32 | Do you want to save this file?
33 | File saved:
34 | Clear
35 | Close
36 | stopping
37 | favicon
38 | Internet connection not available
39 | Error
40 | Storage not available
41 |
42 |
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/src/com/danielme/android/webviewdemo/Link.java:
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1 | /*
2 | * Copyright (C) 2012 Daniel Medina
3 | *
4 | * This file is part of "Android WebView Demo".
5 | *
6 | * "Android WebView Demo" is free software: you can redistribute it and/or modify
7 | * it under the terms of the GNU General Public License as published by
8 | * the Free Software Foundation, version 3.
9 | *
10 | * "Android WebView Demo" is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License version 3
16 | * along with this program. If not, see
17 | */
18 | package com.danielme.android.webviewdemo;
19 |
20 | import android.graphics.Bitmap;
21 |
22 | public class Link
23 | {
24 |
25 | private String url;
26 |
27 | private String title;
28 |
29 | private Bitmap favicon;
30 |
31 | public Link()
32 | {
33 |
34 | }
35 |
36 | public Link(String url, Bitmap favicon)
37 | {
38 | super();
39 | this.url = url;
40 | this.favicon = favicon;
41 | }
42 |
43 | public String getUrl()
44 | {
45 | return url;
46 | }
47 |
48 | public void setUrl(String url)
49 | {
50 | this.url = url;
51 | }
52 |
53 | public Bitmap getFavicon()
54 | {
55 | return favicon;
56 | }
57 |
58 | public void setFavicon(Bitmap favicon)
59 | {
60 | this.favicon = favicon;
61 | }
62 |
63 |
64 | public String getTitle()
65 | {
66 | return title;
67 | }
68 |
69 |
70 | public void setTitle(String title)
71 | {
72 | this.title = title;
73 | }
74 |
75 |
76 |
77 | }
78 |
--------------------------------------------------------------------------------
/src/com/danielme/android/webviewdemo/LinkHolder.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2012 Daniel Medina
3 | *
4 | * This file is part of "Android WebView Demo".
5 | *
6 | * "Android WebView Demo" is free software: you can redistribute it and/or modify
7 | * it under the terms of the GNU General Public License as published by
8 | * the Free Software Foundation, version 3.
9 | *
10 | * "Android WebView Demo" is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License version 3
16 | * along with this program. If not, see
17 | */
18 | package com.danielme.android.webviewdemo;
19 |
20 | import android.widget.ImageView;
21 | import android.widget.TextView;
22 |
23 | public class LinkHolder
24 | {
25 |
26 | private TextView url;
27 |
28 | private ImageView imageView;
29 |
30 | public TextView getUrl()
31 | {
32 | return url;
33 | }
34 |
35 | public void setUrl(TextView url)
36 | {
37 | this.url = url;
38 | }
39 |
40 | public ImageView getImageView()
41 | {
42 | return imageView;
43 | }
44 |
45 | public void setImageView(ImageView imageView)
46 | {
47 | this.imageView = imageView;
48 | }
49 |
50 |
51 |
52 | }
53 |
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/src/com/danielme/android/webviewdemo/WebViewDemoActivity.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2012 Daniel Medina
3 | *
4 | * This file is part of "Android WebView Demo".
5 | *
6 | * "Android WebView Demo" is free software: you can redistribute it and/or modify
7 | * it under the terms of the GNU General Public License as published by
8 | * the Free Software Foundation, version 3.
9 | *
10 | * "Android WebView Demo" is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License version 3
16 | * along with this program. If not, see
17 | */
18 |
19 | package com.danielme.android.webviewdemo;
20 |
21 | import java.io.ByteArrayOutputStream;
22 | import java.io.File;
23 | import java.io.FileOutputStream;
24 | import java.io.IOException;
25 | import java.io.InputStream;
26 | import java.net.HttpURLConnection;
27 | import java.net.URL;
28 | import java.util.LinkedList;
29 | import java.util.List;
30 | import java.util.ListIterator;
31 | import java.util.Locale;
32 | import java.util.regex.Pattern;
33 |
34 | import android.annotation.SuppressLint;
35 | import android.app.Activity;
36 | import android.app.AlertDialog;
37 | import android.app.AlertDialog.Builder;
38 | import android.app.Dialog;
39 | import android.content.Context;
40 | import android.content.DialogInterface;
41 | import android.content.DialogInterface.OnClickListener;
42 | import android.graphics.Bitmap;
43 | import android.net.ConnectivityManager;
44 | import android.net.NetworkInfo;
45 | import android.os.AsyncTask;
46 | import android.os.Build;
47 | import android.os.Bundle;
48 | import android.os.Environment;
49 | import android.util.Log;
50 | import android.view.LayoutInflater;
51 | import android.view.MotionEvent;
52 | import android.view.View;
53 | import android.view.ViewGroup;
54 | import android.view.inputmethod.InputMethodManager;
55 | import android.webkit.DownloadListener;
56 | import android.webkit.WebChromeClient;
57 | import android.webkit.WebIconDatabase;
58 | import android.webkit.WebView;
59 | import android.webkit.WebViewClient;
60 | import android.webkit.WebSettings.PluginState;
61 | import android.widget.ArrayAdapter;
62 | import android.widget.Button;
63 | import android.widget.EditText;
64 | import android.widget.FrameLayout;
65 | import android.widget.ImageView;
66 | import android.widget.ProgressBar;
67 | import android.widget.TextView;
68 | import android.widget.Toast;
69 |
70 | public class WebViewDemoActivity extends Activity
71 | {
72 | private WebView webview;
73 |
74 | private ProgressBar progressBar;
75 |
76 | private EditText urlEditText;
77 |
78 | private List historyStack;
79 |
80 | private ArrayAdapter dialogArrayAdapter;
81 |
82 | private Button stopButton;
83 |
84 | private ImageView faviconImageView;
85 |
86 | private static final Pattern urlPattern = Pattern.compile("^(https?|ftp|file)://(.*?)");
87 |
88 |
89 | @SuppressLint({ "SetJavaScriptEnabled", "NewApi" })
90 | @Override
91 | public void onCreate(Bundle savedInstanceState)
92 | {
93 | super.onCreate(savedInstanceState);
94 | setContentView(R.layout.main);
95 |
96 | historyStack = new LinkedList();
97 | webview = (WebView) findViewById(R.id.webkit);
98 | faviconImageView = (ImageView) findViewById(R.id.favicon);
99 |
100 | urlEditText = (EditText) findViewById(R.id.url);
101 | progressBar = (ProgressBar) findViewById(R.id.progressbar);
102 | stopButton = ((Button) findViewById(R.id.stopButton));
103 | //favicon, deprecated since Android 4.3 but it's still necesary O_O ¿?
104 | WebIconDatabase.getInstance().open(getDir("icons", MODE_PRIVATE).getPath());
105 |
106 | // javascript and zoom
107 | webview.getSettings().setJavaScriptEnabled(true);
108 | webview.getSettings().setBuiltInZoomControls(true);
109 |
110 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO)
111 | {
112 | webview.getSettings().setPluginState(PluginState.ON);
113 | }
114 | else
115 | {
116 | //IMPORTANT!! this method is no longer available since Android 4.3
117 | //so the code doesn't compile anymore
118 | webview.getSettings().setPluginsEnabled(true);
119 | }
120 |
121 | // downloads
122 | webview.setDownloadListener(new CustomDownloadListener());
123 |
124 | webview.setWebViewClient(new CustomWebViewClient());
125 |
126 | webview.setWebChromeClient(new WebChromeClient()
127 | {
128 | @Override
129 | public void onProgressChanged(WebView view, int progress)
130 | {
131 | progressBar.setProgress(0);
132 | FrameLayout progressBarLayout = (FrameLayout) findViewById(R.id.progressBarLayout);
133 | progressBarLayout.setVisibility(View.VISIBLE);
134 | WebViewDemoActivity.this.setProgress(progress * 1000);
135 |
136 | TextView progressStatus = (TextView) findViewById(R.id.progressStatus);
137 | progressStatus.setText(progress + " %");
138 | progressBar.incrementProgressBy(progress);
139 |
140 | if (progress == 100)
141 | {
142 | progressBarLayout.setVisibility(View.GONE);
143 | }
144 | }
145 |
146 | @Override
147 | public void onReceivedTitle(WebView view, String title)
148 | {
149 | WebViewDemoActivity.this.setTitle(getString(R.string.app_name) + " - " + WebViewDemoActivity.this.webview.getTitle());
150 | for(Link link : historyStack)
151 | {
152 | if (link.getUrl().equals(WebViewDemoActivity.this.webview.getUrl()))
153 | {
154 | link.setTitle(title);
155 | }
156 | }
157 | }
158 |
159 | @Override
160 | public void onReceivedIcon(WebView view, Bitmap icon)
161 | {
162 | faviconImageView.setImageBitmap(icon);
163 | view.getUrl();
164 | boolean b = false;
165 | ListIterator listIterator = historyStack.listIterator();
166 | while (!b && listIterator.hasNext())
167 | {
168 | Link link = listIterator.next();
169 | if (link.getUrl().equals(view.getUrl()))
170 | {
171 | link.setFavicon(icon);
172 | b = true;
173 | }
174 | }
175 | }
176 |
177 | });
178 |
179 | //http://stackoverflow.com/questions/2083909/android-webview-refusing-user-input
180 | webview.setOnTouchListener(new View.OnTouchListener()
181 | {
182 | @Override
183 | public boolean onTouch(View v, MotionEvent event)
184 | {
185 | switch (event.getAction())
186 | {
187 | case MotionEvent.ACTION_DOWN:
188 | case MotionEvent.ACTION_UP:
189 | if (!v.hasFocus())
190 | {
191 | v.requestFocus();
192 | }
193 | break;
194 | }
195 | return false;
196 | }
197 |
198 | });
199 |
200 |
201 | // Welcome page loaded from assets directory
202 | if (Locale.getDefault().getLanguage().equals("es"))
203 | {
204 | webview.loadUrl("file:///android_asset/welcome_es.html");
205 | }
206 | else
207 | {
208 | webview.loadUrl("file:///android_asset/welcome.html");
209 | }
210 |
211 | webview.requestFocus();
212 | }
213 |
214 |
215 | @Override
216 | protected Dialog onCreateDialog(int id)
217 | {
218 | AlertDialog.Builder builder = new AlertDialog.Builder(this);
219 |
220 | builder.setTitle(getString(R.string.history));
221 | builder.setPositiveButton(getString(R.string.clear), new OnClickListener()
222 | {
223 | @Override
224 | public void onClick(DialogInterface dialog, int which)
225 | {
226 | historyStack.clear();
227 | }
228 | });
229 |
230 | builder.setNegativeButton(R.string.close, null);
231 |
232 | dialogArrayAdapter = new ArrayAdapter(this, R.layout.history, historyStack)
233 | {
234 | @Override
235 | public View getView(int position, View convertView, ViewGroup parent)
236 | {
237 | //holder pattern
238 | LinkHolder holder = null;
239 | if (convertView == null)
240 | {
241 | LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
242 | convertView = inflater.inflate(R.layout.history, null);
243 | holder = new LinkHolder();
244 | holder.setUrl((TextView) convertView.findViewById(R.id.textView1));
245 | holder.setImageView((ImageView) convertView.findViewById(R.id.favicon));
246 |
247 | convertView.setTag(holder);
248 | }
249 | else
250 | {
251 | holder = (LinkHolder) convertView.getTag();
252 | }
253 |
254 | Link link = historyStack.get(position);
255 | //show title when available
256 | if (link.getTitle() != null)
257 | {
258 | holder.getUrl().setText(link.getTitle());
259 | }
260 | else
261 | {
262 | holder.getUrl().setText(link.getUrl());
263 | }
264 | Bitmap favicon = link.getFavicon();
265 | if (favicon == null)
266 | {
267 | holder.getImageView().setImageDrawable(super.getContext().getResources().getDrawable(R.drawable.favicon_default));
268 | }
269 | else
270 | {
271 | holder.getImageView().setImageBitmap(favicon);
272 | }
273 |
274 | return convertView;
275 | }
276 | };
277 |
278 | builder.setAdapter(dialogArrayAdapter, new DialogInterface.OnClickListener()
279 | {
280 | public void onClick(DialogInterface dialog, int item)
281 | {
282 | webview.loadUrl(historyStack.get(item).getUrl());
283 | stopButton.setEnabled(true);
284 | }
285 |
286 | });
287 |
288 | return builder.create();
289 | }
290 |
291 | @Override
292 | protected void onPrepareDialog(int id, Dialog dialog)
293 | {
294 | dialogArrayAdapter.notifyDataSetChanged();
295 | super.onPrepareDialog(id, dialog);
296 | }
297 |
298 | // back button
299 | @Override
300 | public void onBackPressed()
301 | {
302 | if (webview.canGoBack())
303 | {
304 | webview.goBack();
305 | }
306 | else
307 | {
308 | super.onBackPressed();
309 | }
310 | }
311 |
312 | class CustomWebViewClient extends WebViewClient
313 | {
314 | // the current WebView will handle the url
315 | @Override
316 | public boolean shouldOverrideUrlLoading(WebView view, String url)
317 | {
318 |
319 | return false;
320 | }
321 |
322 | // history and navigation buttons
323 | @Override
324 | public void onPageStarted(WebView view, String url, Bitmap favicon)
325 | {
326 | if (checkConnectivity())
327 | {
328 | //resets favicon
329 | WebViewDemoActivity.this.faviconImageView.setImageDrawable(WebViewDemoActivity.this.getResources().getDrawable(R.drawable.favicon_default));
330 | // shows the current url
331 | WebViewDemoActivity.this.urlEditText.setText(url);
332 |
333 | //only one occurrence
334 | boolean b = false;
335 | ListIterator listIterator = historyStack.listIterator();
336 | while (listIterator.hasNext() && !b)
337 | {
338 | if (listIterator.next().getUrl().equals(url))
339 | {
340 | b = true;
341 | listIterator.remove();
342 | }
343 | }
344 | Link link = new Link(url, favicon);
345 | historyStack.add(0, link);
346 |
347 | stopButton.setEnabled(true);
348 | updateButtons();
349 | }
350 | }
351 |
352 | @Override
353 | public void onPageFinished(WebView view, String url)
354 | {
355 | stopButton.setEnabled(false);
356 | updateButtons();
357 | }
358 |
359 | // handles unrecoverable errors
360 | @Override
361 | public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
362 | {
363 | AlertDialog.Builder builder = new AlertDialog.Builder(WebViewDemoActivity.this);
364 | builder.setMessage(description).setPositiveButton((R.string.ok), null).setTitle("onReceivedError");
365 | builder.show();
366 | }
367 |
368 | }
369 |
370 |
371 | public void go(View view)
372 | {
373 | // hides the keyboard
374 | InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
375 | inputMethodManager.hideSoftInputFromWindow(urlEditText.getWindowToken(), 0);
376 |
377 | if (checkConnectivity())
378 | {
379 | stopButton.setEnabled(true);
380 |
381 | //http protocol by default
382 | if (!urlPattern.matcher(urlEditText.getText().toString()).matches())
383 | {
384 | urlEditText.setText("http://" + urlEditText.getText().toString());
385 | }
386 | webview.loadUrl(urlEditText.getText().toString());
387 | }
388 | }
389 |
390 | public void back(View view)
391 | {
392 | if (checkConnectivity())
393 | {
394 | webview.goBack();
395 | }
396 | }
397 |
398 | public void forward(View view)
399 | {
400 | if (checkConnectivity())
401 | {
402 | webview.goForward();
403 | }
404 | }
405 |
406 | public void stop(View view)
407 | {
408 | webview.stopLoading();
409 | Toast.makeText(this, getString(R.string.stopping), Toast.LENGTH_LONG).show();
410 | }
411 |
412 | public void history(View view)
413 | {
414 | showDialog(0);
415 | }
416 |
417 |
418 |
419 | private void updateButtons()
420 | {
421 | Button backButton = (Button) WebViewDemoActivity.this.findViewById(R.id.backButton);
422 |
423 | if (webview.canGoBack())
424 | {
425 | backButton.setEnabled(true);
426 | }
427 | else
428 | {
429 | backButton.setEnabled(false);
430 | }
431 |
432 | Button forwardButton = (Button) WebViewDemoActivity.this.findViewById(R.id.forwardButton);
433 |
434 | if (webview.canGoForward())
435 | {
436 | forwardButton.setEnabled(true);
437 | }
438 | else
439 | {
440 | forwardButton.setEnabled(false);
441 | }
442 | }
443 |
444 | // DOWNLOAD MANAGER WITH ASYNCTASK
445 |
446 | class CustomDownloadListener implements DownloadListener
447 | {
448 | public void onDownloadStart(final String url, String userAgent, String contentDisposition, String mimetype, long contentLength)
449 | {
450 | AlertDialog.Builder builder = new AlertDialog.Builder(WebViewDemoActivity.this);
451 |
452 | builder.setTitle(getString(R.string.download));
453 | builder.setMessage(getString(R.string.question));
454 | builder.setCancelable(false).setPositiveButton((R.string.ok), new DialogInterface.OnClickListener()
455 | {
456 | public void onClick(DialogInterface dialog, int id)
457 | {
458 | new DownloadAsyncTask().execute(url);
459 | }
460 |
461 | }).setNegativeButton((R.string.cancel), new DialogInterface.OnClickListener()
462 | {
463 | public void onClick(DialogInterface dialog, int id)
464 | {
465 | dialog.cancel();
466 | }
467 | });
468 |
469 | builder.create().show();
470 |
471 | }
472 |
473 | }
474 |
475 | private class DownloadAsyncTask extends AsyncTask
476 | {
477 |
478 | @Override
479 | protected String doInBackground(String... arg0)
480 | {
481 | String result = "";
482 | String urlString = arg0[0];
483 |
484 | if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
485 | {
486 | InputStream inputStream = null;
487 | FileOutputStream fileOutputStream = null;
488 | try
489 | {
490 |
491 | URL url = new URL(urlString);
492 | HttpURLConnection connection = (HttpURLConnection) url.openConnection();
493 | connection.setRequestMethod("GET");
494 | inputStream = connection.getInputStream();
495 |
496 | String fileName = android.os.Environment.getExternalStorageDirectory().getAbsolutePath() + "/webviewdemo";
497 | File directory = new File(fileName);
498 | File file = new File(directory, urlString.substring(urlString.lastIndexOf("/")));
499 | directory.mkdirs();
500 |
501 | // commons-io, I miss you :(
502 | fileOutputStream = new FileOutputStream(file);
503 | ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
504 | byte[] buffer = new byte[1024];
505 | int len = 0;
506 |
507 | while (inputStream.available() > 0 && (len = inputStream.read(buffer)) != -1)
508 | {
509 | byteArrayOutputStream.write(buffer, 0, len);
510 | }
511 |
512 | fileOutputStream.write(byteArrayOutputStream.toByteArray());
513 | fileOutputStream.flush();
514 |
515 | result = getString(R.string.result) + file.getAbsolutePath();
516 | }
517 | catch (Exception ex)
518 | {
519 | Log.e(WebViewDemoActivity.class.toString(), ex.getMessage(), ex);
520 | result = ex.getClass().getSimpleName() + " " + ex.getMessage();
521 | }
522 | finally
523 | {
524 | if (inputStream != null)
525 | {
526 | try
527 | {
528 | inputStream.close();
529 | }
530 | catch (IOException ex)
531 | {
532 | Log.e(WebViewDemoActivity.class.toString(), ex.getMessage(), ex);
533 | result = ex.getClass().getSimpleName() + " " + ex.getMessage();
534 | }
535 | }
536 | if (fileOutputStream != null)
537 | {
538 | try
539 | {
540 | fileOutputStream.close();
541 | }
542 | catch (IOException ex)
543 | {
544 | Log.e(WebViewDemoActivity.class.toString(), ex.getMessage(), ex);
545 | result = ex.getClass().getSimpleName() + " " + ex.getMessage();
546 | }
547 | }
548 | }
549 | }
550 | else
551 | {
552 | result = getString(R.string.nosd);
553 | }
554 |
555 | return result;
556 | }
557 |
558 | @Override
559 | protected void onPostExecute(String result)
560 | {
561 | AlertDialog.Builder builder = new AlertDialog.Builder(WebViewDemoActivity.this);
562 | builder.setMessage(result).setPositiveButton((R.string.ok), null).setTitle(getString(R.string.download));
563 | builder.show();
564 |
565 | }
566 |
567 | }
568 |
569 | /**
570 | * Checks networking status.
571 | */
572 | private boolean checkConnectivity()
573 | {
574 | boolean enabled = true;
575 |
576 | ConnectivityManager connectivityManager = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
577 | NetworkInfo info = connectivityManager.getActiveNetworkInfo();
578 |
579 | if ((info == null || !info.isConnected() || !info.isAvailable()))
580 | {
581 | enabled = false;
582 | Builder builder = new Builder(this);
583 | builder.setIcon(android.R.drawable.ic_dialog_alert);
584 | builder.setMessage(getString(R.string.noconnection));
585 | builder.setCancelable(false);
586 | builder.setNeutralButton(R.string.ok, null);
587 | builder.setTitle(getString(R.string.error));
588 | builder.create().show();
589 | }
590 | return enabled;
591 | }
592 |
593 | }
594 |
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