来源：http://www.android100.org/html/201406/08/21956.html
XML放入网络空间---version.xml .url地址应该为正常***/*****.apk
<update>
<version>5</version>
<name>yuanbao</name>
<url>http://cdn.market.hiapk.com/data/upload//2012/06_27/13/yuanbao.co.
cc_134532.apk
</url>
</update>
1 package gognzibai.co.cc;
2 import android.app.Activity;
3 import android.os.Bundle;
4 import android.view.View;
5 import android.view.View.OnClickListener;
6 import android.widget.Button;
7
8 public class MainActivity extends Activity
9 {
10 @Override
11 public void onCreate(Bundle savedInstanceState)
12 {
13 super.onCreate(savedInstanceState);
14 setContentView(R.layout.main);
15 //按钮更新
16 Button updateBtn = (Button) findViewById
17 (R.id.btnUpdate);
18 updateBtn.setOnClickListener(new OnClickListener()
19 {
20 @Override
21 public void onClick(View v)
22 {
23 UpdateManager manager = new
24 UpdateManager(MainActivity.this);
25
26 manager.checkUpdate();
27 }
28 });
29
30 }
31 }
MainActivity
1 package gongzibai.co.cc;
2 import java.io.InputStream;
3 import java.util.HashMap;
4 import javax.xml.parsers.DocumentBuilder;
5 import javax.xml.parsers.DocumentBuilderFactory;
6 import org.w3c.dom.Document;
7 import org.w3c.dom.Element;
8 import org.w3c.dom.Node;
9 import org.w3c.dom.NodeList;
10 //解析xml
11 public class ParseXmlService {
12 public HashMap<String, String> parseXml(
13 InputStream inStream)
14 throws Exception {
15 HashMap<String, String> hashMap = new HashMap<String,
16 String>();
17
18 DocumentBuilderFactory factory = DocumentBuilderFactory
19 .newInstance();
20
21 DocumentBuilder builder = factory
22 .newDocumentBuilder();
23
24 Document document = builder
25 .parse(inStream);
26
27 Element root = document
28 .getDocumentElement();
29
30 NodeList childNodes = root
31 .getChildNodes();
32 for (int j = 0; j < childNodes
33 .getLength(); j++) {
34
35 Node childNode = (Node) childNodes
36 .item(j);
37 if (childNode.getNodeType() ==
38 Node.ELEMENT_NODE) {
39 Element childElement = (Element)
40 childNode;
41
42 if ("version"
43 .equals(childElement
44
45 .getNodeName())) {
46 hashMap.put(
47 "version",
48 childElement
49
50 .getFirstChild()
51
52 .getNodeValue());
53 }
54
55 else if (("name"
56 .equals(childElement
57
58 .getNodeName()))) {
59 hashMap.put(
60 "name",
61 childElement
62
63 .getFirstChild()
64
65 .getNodeValue());
66 }
67
68 else if (("url"
69 .equals(childElement
70
71 .getNodeName()))) {
72 hashMap.put(
73 "url",
74 childElement
75
76 .getFirstChild()
77
78 .getNodeValue());
79 }
80 }
81 }
82 return hashMap;
83 }
84 }
ParseXmlService.java
1 package gongzibai.co.cc;
2 import java.io.File;
3 import java.io.FileOutputStream;
4 import java.io.IOException;
5 import java.io.InputStream;
6 import java.net.HttpURLConnection;
7 import java.net.MalformedURLException;
8 import java.net.URL;
9 import java.util.HashMap;
10 import android.app.AlertDialog;
11 import android.app.Dialog;
12 import android.app.AlertDialog.Builder;
13 import android.content.Context;
14 import android.content.DialogInterface;
15 import android.content.Intent;
16 import android.content.DialogInterface.OnClickListener;
17 import android.content.pm.PackageManager.NameNotFoundException;
18 import android.net.Uri;
19 import android.os.Environment;
20 import android.os.Handler;
21 import android.os.Message;
22 import android.view.LayoutInflater;
23 import android.view.View;
24 import android.widget.ProgressBar;
25 import android.widget.Toast;
26
27 public class UpdateManager {
28
29 private static final int DOWNLOAD = 1;
30
31 private static final int DOWNLOAD_FINISH = 2;
32
33 HashMap<String, String> mHashMap;
34
35 private String mSavePath;
36
37 private int progress;
38
39 private boolean cancelUpdate = false;
40 private Context mContext;
41
42 private ProgressBar mProgress;
43 private Dialog mDownloadDialog;
44 private Handler mHandler = new Handler() {
45 public void handleMessage(
46 Message msg) {
47 switch (msg.what) {
48
49 case DOWNLOAD:
50
51 mProgress
52 .setProgress(progress);
53 break;
54 case DOWNLOAD_FINISH:
55 //安装APK
56 installApk();
57 break;
58 default:
59 break;
60 }
61 };
62 };
63 public UpdateManager(Context context) {
64 this.mContext = context;
65 }
66 //检查更新
67 public void checkUpdate() {
68 if (isUpdate()) {
69
70 showNoticeDialog();
71 } else {
72 Toast.makeText(
73 mContext,
74 R.string.soft_update_no,
75 Toast.LENGTH_LONG)
76 .show();
77 }
78 }
79
80 private boolean isUpdate() {
81
82 int versionCode = getVersionCode(mContext);
83
84 //本地的XML更新
85 // InputStream inStream = ParseXmlService.class
86 //
87 // .getResourceAsStream("version.xml");
88 // InputStream inStream = ParseXmlService.class
89 // .getClassLoader()
90 // .getResourceAsStream(
91 // "version1.xml");
92
93 //解析网络xml进行更新软件
94 URL url = null;
95 try {
96 url = new URL(
97
98 "http://gongzibai.h001.sjsdidc.cn/version.xml");
99 } catch (MalformedURLException e1) {
100 // TODO Auto-generated catch block
101 e1.printStackTrace();
102 }
103 HttpURLConnection conn = null;
104 try {
105 conn = (HttpURLConnection) url
106 .openConnection();
107 } catch (IOException e1) {
108 // TODO Auto-generated catch block
109 e1.printStackTrace();
110 }
111 conn.setConnectTimeout(5000);
112 InputStream is = null;
113 try {
114 is = conn.getInputStream();
115 } catch (IOException e1) {
116 // TODO Auto-generated catch block
117 e1.printStackTrace();
118 }
119
120 ParseXmlService service = new ParseXmlService();
121 try {
122 mHashMap = service
123 .parseXml(is);
124 } catch (Exception e) {
125 e.printStackTrace();
126 }
127 if (null != mHashMap) {
128 int serviceCode = Integer
129 .valueOf(mHashMap
130 .get
131 ("version"));
132
133 if (serviceCode > versionCode) {
134 return true;
135 }
136 }
137 return false;
138 }
139
140 private int getVersionCode(
141 Context context) {
142 int versionCode = 0;
143 try {
144
145 versionCode = context
146 .getPackageManager()
147 .getPackageInfo(
148
149 "gongzibai.co.cc",
150 0).versionCode;
151 } catch (NameNotFoundException e) {
152 e.printStackTrace();
153 }
154 return versionCode;
155 }
156
157 private void showNoticeDialog() {
158
159 AlertDialog.Builder builder = new Builder(
160 mContext);
161 builder.setTitle(R.string.soft_update_title);
162 builder.setMessage(R.string.soft_update_info);
163
164 builder.setPositiveButton(
165 R.string.soft_update_updatebtn,
166 new OnClickListener() {
167 @Override
168 public void onClick(
169 DialogInterface
170 dialog,
171 int which) {
172 dialog.dismiss();
173
174 showDownloadDialog();
175 }
176 });
177
178 builder.setNegativeButton(
179 R.string.soft_update_later,
180 new OnClickListener() {
181 @Override
182 public void onClick(
183 DialogInterface
184 dialog,
185 int which) {
186 dialog.dismiss();
187 }
188 });
189 Dialog noticeDialog = builder
190 .create();
191 noticeDialog.show();
192 }
193
194 private void showDownloadDialog() {
195
196 AlertDialog.Builder builder = new Builder(
197 mContext);
198 builder.setTitle(R.string.soft_updating);
199
200 final LayoutInflater inflater = LayoutInflater
201 .from(mContext);
202 View v = inflater
203 .inflate(
204
205 R.layout.softupdate_progress,
206 null);
207 mProgress = (ProgressBar) v
208 .findViewById(R.id.update_progress);
209 builder.setView(v);
210
211 builder.setNegativeButton(
212 R.string.soft_update_cancel,
213 new OnClickListener() {
214 @Override
215 public void onClick(
216 DialogInterface
217 dialog,
218 int which) {
219 dialog.dismiss();
220
221 cancelUpdate = true;
222 }
223 });
224 mDownloadDialog = builder
225 .create();
226 mDownloadDialog.show();
227
228 downloadApk();
229 }
230 private void downloadApk() {
231
232 new downloadApkThread().start();
233 }
234 private class downloadApkThread
235 extends Thread {
236 @Override
237 public void run() {
238 try {
239
240 if (Environment
241
242 .getExternalStorageState()
243 .equals
244 (Environment.MEDIA_MOUNTED)) {
245
246 String sdpath = Environment
247
248 .getExternalStorageDirectory()
249 + "/";
250 mSavePath = sdpath
251 + "download";
252 URL url = new URL(
253 mHashMap.get
254 ("url"));
255
256 HttpURLConnection conn =
257 (HttpURLConnection) url
258
259 .openConnection();
260 conn.connect();
261
262 int length = conn
263
264 .getContentLength();
265
266 InputStream is = conn
267
268 .getInputStream();
269 File file = new File(
270 mSavePath);
271
272 if (!file.exists()) {
273 file.mkdir();
274 }
275 File apkFile = new File(
276 mSavePath,
277 mHashMap.get
278 ("name"));
279 FileOutputStream fos = new
280 FileOutputStream(
281 apkFile);
282 int count = 0;
283
284 byte buf[] = new byte[1024];
285
286 do {
287 int numread = is
288 .read
289 (buf);
290 count += numread;
291
292 progress = (int)
293 (((float) count / length) * 100);
294
295
296 mHandler.sendEmptyMessage(DOWNLOAD);
297 if (numread <= 0) {
298
299
300 mHandler.sendEmptyMessage(DOWNLOAD_FINISH);
301 break;
302 }
303
304 fos.write(buf,
305 0,
306
307 numread);
308 } while (!cancelUpdate);
309 fos.close();
310 is.close();
311 }
312 } catch (MalformedURLException e) {
313 e.printStackTrace();
314 } catch (IOException e) {
315 e.printStackTrace();
316 }
317
318 mDownloadDialog.dismiss();
319 }
320 };
321
322 private void installApk() {
323 File apkfile = new File(
324 mSavePath,
325 mHashMap.get("name"));
326 if (!apkfile.exists()) {
327 return;
328 }
329
330 Intent i = new Intent(
331 Intent.ACTION_VIEW);
332 i.setDataAndType(
333 Uri.parse("file://"
334 + apkfile
335
336 .toString()),
337 "application/vnd.android.package-
338 archive");
339 mContext.startActivity(i);
340 }
341 }
UpdateManager.java
时间： 2024-08-06 07:55:43