本文实例为大家分享了Android App自动更新通知栏下载的具体代码,供大家参考,具体内容如下
版本更新说明
这里有调用UpdateService启动服务检查下载安装包等
1. 文件下载,下完后写入到sdcard
2. 如何在通知栏上显示下载进度
3. 下载完毕自动安装
4. 如何判断是否有新版本
版本更新的主类
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
package com.wei.update;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.HashMap;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.json.JSONException;
import org.json.JSONObject;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import com.wei.util.MyApplication;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Handler;
/**
* 版本更新主类,这里有调用UpdateService启动服务检查下载安装包等 1. 文件下载,下完后写入到sdcard 2. 如何在通知栏上显示下载进度
* 3. 下载完毕自动安装 4. 如何判断是否有新版本
*
* @author david
*/
public class UpdateManager {
private static String packageName; // = "com.yipinzhe"; // 应用的包名
private static String jsonUrl = "version.txt" ; // JSON版本文件URL
private static String xmlUrl = "version.xml" ; // XML版本文件URL
private static final String DOWNLOAD_DIR = "/" ; // 应用下载后保存的子目录
private Context mContext;
HashMap<String, String> mHashMap; // 保存解析的XML信息
int versionCode, isNew;
public UpdateManager(Context context) {
this .mContext = context;
packageName = context.getPackageName();
jsonUrl = MyApplication.site + jsonUrl;
xmlUrl = MyApplication.site + xmlUrl;
checkVersion();
}
Handler checkHandler = new Handler() {
@Override
public void handleMessage(android.os.Message msg) {
if (msg.what == 1 ) {
// 发现新版本,提示用户更新
StringBuffer message = new StringBuffer();
message.append(mHashMap.get( "note" ).replace( "|" , "\n" ));
AlertDialog.Builder alert = new AlertDialog.Builder(mContext);
alert.setTitle( "软件升级" )
.setMessage(message.toString())
.setPositiveButton( "更新" ,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
// 开启更新服务UpdateService
System.out.println( "你点击了更新" );
Intent updateIntent = new Intent(
mContext, UpdateService. class );
/**
* updateIntent.putExtra("downloadDir",
* DOWNLOAD_DIR);
* updateIntent.putExtra("apkUrl",
* mHashMap.get("url"));
*/
mContext.startService(updateIntent);
}
})
.setNegativeButton( "取消" ,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
}
});
alert.create().show();
}
};
};
/**
*检查是否有新版本
*/
public void checkVersion() {
try {
// 获取软件版本号,对应AndroidManifest.xml下android:versionCode
versionCode = mContext.getPackageManager().getPackageInfo(
packageName, 0 ).versionCode;
} catch (NameNotFoundException e) {
e.printStackTrace();
}
new Thread() {
@Override
public void run() {
String result = null ;
/**
* try { //如果服务器端是JSON文本文件 result =
* MyApplication.handleGet(jsonUrl); if (result != null) {
* mHashMap = parseJSON(result); } } catch (Exception e1) {
* e1.printStackTrace(); }
*/
InputStream inStream = null ;
try {
// 本机XML文件
inStream = UpdateManager. class .getClassLoader().getResourceAsStream( "version.xml" );
// 如果服务器端是XML文件
inStream = new URL(xmlUrl).openConnection().getInputStream();
if (inStream != null )
mHashMap = parseXml(inStream);
} catch (Exception e1) {
e1.printStackTrace();
}
if (mHashMap != null ) {
int serviceCode = Integer.valueOf(mHashMap.get( "version" ));
if (serviceCode > versionCode) { // 版本判断,返回true则有新版本
isNew = 1 ;
}
}
checkHandler.sendEmptyMessage(isNew);
};
}.start();
}
/**
*解析服务器端的JSON版本文件
*/
public HashMap<String, String> parseJSON(String str) {
HashMap<String, String> hashMap = new HashMap<String, String>();
try {
JSONObject obj = new JSONObject(str);
hashMap.put( "version" , obj.getString( "version" ));
hashMap.put( "name" , obj.getString( "name" ));
hashMap.put( "url" , obj.getString( "url" ));
hashMap.put( "note" , obj.getString( "note" ));
} catch (JSONException e) {
e.printStackTrace();
}
return hashMap;
}
/**
*解析服务器端的XML版本文件
*/
public HashMap<String, String> parseXml(InputStream inputStream) {
HashMap<String, String> hashMap = new HashMap<String, String>();
try {
XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser();
parser.setInput(inputStream, "GBK" ); //设置数据源编码
int eventCode = parser.getEventType(); //获取事件类型
while (eventCode != XmlPullParser.END_DOCUMENT) {
System.out.println( "循环开始" );
switch (eventCode){
case XmlPullParser.START_DOCUMENT: //开始读取XML文档
System.out.println( "START_DOCUMENT" );
break ;
case XmlPullParser.START_TAG: //开始读取某个标签
if ( "version" .equals(parser.getName())) {
hashMap.put(parser.getName(), parser.nextText());
} else if ( "name" .equals(parser.getName())) {
hashMap.put(parser.getName(), parser.nextText());
} else if ( "url" .equals(parser.getName())) {
hashMap.put(parser.getName(), parser.nextText());
} else if ( "note" .equals(parser.getName())) {
hashMap.put(parser.getName(), parser.nextText());
}
break ;
case XmlPullParser.END_TAG:
break ;
}
eventCode = parser.next(); //继续读取下一个元素节点,并获取事件码
}
System.out.println(hashMap.get( "version" ));
} catch (Exception e) {
}
return hashMap;
/**
*try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse(inStream);
Element root = document.getDocumentElement();//获取根节点
NodeList childNodes = root.getChildNodes();//获得所有子节点,然后遍历
for (int j = 0; j < childNodes.getLength(); j++) {
Node childNode = childNodes.item(j);
if (childNode.getNodeType() == Node.ELEMENT_NODE) {
Element childElement = (Element) childNode;
if ("version".equals(childElement.getNodeName())) {
hashMap.put("version", childElement.getFirstChild()
.getNodeValue());
}
else if (("name".equals(childElement.getNodeName()))) {
hashMap.put("name", childElement.getFirstChild()
.getNodeValue());
}
else if (("url".equals(childElement.getNodeName()))) {
hashMap.put("url", childElement.getFirstChild()
.getNodeValue());
} else if (("note".equals(childElement.getNodeName()))) {
hashMap.put("note", childElement.getFirstChild()
.getNodeValue());
}
}
}
} catch (Exception e) {
e.printStackTrace();
}*/
}
}
|
版本更新的服务类
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
package com.wei.update;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import com.wei.util.MyApplication;
import com.wei.wotao.R;
//import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.view.View;
import android.widget.RemoteViews;
/**
* 下载安装包的服务类
* @author david
*/
public class UpdateService extends Service {
// 文件存储
private File saveDir;
private File saveFile;
private String apkUrl;
// 通知栏
private NotificationManager updateNotificationManager = null ;
private Notification updateNotification = null ;
// 通知栏跳转Intent
private Intent updateIntent = null ;
private PendingIntent updatePendingIntent = null ;
// 下载状态
private final static int DOWNLOAD_COMPLETE = 0 ;
private final static int DOWNLOAD_FAIL = 1 ;
private RemoteViews contentView;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
System.out.println( "onStartCommand" );
contentView = new RemoteViews(getPackageName(), R.layout.activity_app_update);
// 获取传值
String downloadDir = intent.getStringExtra( "downloadDir" );
apkUrl = MyApplication.site+intent.getStringExtra( "apkUrl" );
// 如果有SD卡,则创建APK文件
if (android.os.Environment.MEDIA_MOUNTED.equals(android.os.Environment
.getExternalStorageState())) {
saveDir = new File(Environment.getExternalStorageDirectory(),
downloadDir);
saveFile = new File(saveDir.getPath(), getResources()
.getString(R.string.app_name) + ".apk" );
}
this .updateNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
this .updateNotification = new Notification();
// 设置下载过程中,点击通知栏,回到主界面
updateIntent = new Intent();
updatePendingIntent = PendingIntent.getActivity( this , 0 , updateIntent, 0 );
// 设置通知栏显示内容
updateNotification.icon = R.drawable.icon_info;
updateNotification.tickerText = "开始下载" ;
updateNotification.contentView.setProgressBar(R.id.progressBar1, 100 , 0 , true );
updateNotification.setLatestEventInfo( this ,
getResources().getString(R.string.app_name), "0%" ,
updatePendingIntent);
// 发出通知
updateNotificationManager.notify( 0 , updateNotification);
new Thread( new DownloadThread()).start();
return super .onStartCommand(intent, flags, startId);
}
@Override
public IBinder onBind(Intent intent) {
return null ;
}
/**
*下载的线程
*/
private class DownloadThread implements Runnable {
Message message = updateHandler.obtainMessage();
public void run() {
message.what = DOWNLOAD_COMPLETE;
if (saveDir!= null && !saveDir.exists()) {
saveDir.mkdirs();
}
if (saveFile!= null && !saveFile.exists()) {
try {
saveFile.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
try {
long downloadSize = downloadFile(apkUrl, saveFile);
if (downloadSize > 0 ) { // 下载成功
updateHandler.sendMessage(message);
}
} catch (Exception ex) {
ex.printStackTrace();
message.what = DOWNLOAD_FAIL;
updateHandler.sendMessage(message); // 下载失败
}
}
public long downloadFile(String downloadUrl, File saveFile)
throws Exception {
int downloadCount = 0 ;
int currentSize = 0 ;
long totalSize = 0 ;
int updateTotalSize = 0 ;
int rate = 0 ; // 下载完成比例
HttpURLConnection httpConnection = null ;
InputStream is = null ;
FileOutputStream fos = null ;
try {
URL url = new URL(downloadUrl);
httpConnection = (HttpURLConnection) url.openConnection();
httpConnection.setRequestProperty( "User-Agent" ,
"PacificHttpClient" );
if (currentSize > 0 ) {
httpConnection.setRequestProperty( "RANGE" , "bytes="
+ currentSize + "-" );
}
httpConnection.setConnectTimeout( 200000 );
httpConnection.setReadTimeout( 200000 );
updateTotalSize = httpConnection.getContentLength(); //获取文件大小
if (httpConnection.getResponseCode() == 404 ) {
throw new Exception( "fail!" );
}
is = httpConnection.getInputStream();
fos = new FileOutputStream(saveFile, false );
byte buffer[] = new byte [ 1024 * 1024 * 3 ];
int readsize = 0 ;
while ((readsize = is.read(buffer)) != - 1 ) {
fos.write(buffer, 0 , readsize);
totalSize += readsize; //已经下载的字节数
rate = ( int ) (totalSize * 100 / updateTotalSize); //当前下载进度
// 为了防止频繁的通知导致应用吃紧,百分比增加10才通知一次
if ((downloadCount == 0 ) || rate - 0 > downloadCount) {
downloadCount += 1 ;
updateNotification.setLatestEventInfo(
UpdateService. this , "正在下载" , rate + "%" ,
updatePendingIntent); //设置通知的内容、标题等
updateNotification.contentView.setProgressBar(R.id.progressBar1, 100 , rate, true );
updateNotificationManager.notify( 0 , updateNotification); //把通知发布出去
}
}
} finally {
if (httpConnection != null ) {
httpConnection.disconnect();
}
if (is != null ) {
is.close();
}
if (fos != null ) {
fos.close();
}
}
return totalSize;
}
}
private Handler updateHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case DOWNLOAD_COMPLETE:
//当下载完毕,自动安装APK(ps,打电话 发短信的启动界面工作)
Uri uri = Uri.fromFile(saveFile); //根据File获得安装包的资源定位符
Intent installIntent = new Intent(Intent.ACTION_VIEW); //设置Action
installIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //新的Activity会在一个新任务打开,而不是在原先的任务栈
installIntent.setDataAndType(uri, "application/vnd.android.package-archive" ); //设置URI的数据类型
startActivity(installIntent); //把打包的Intent传递给startActivity
//当下载完毕,更新通知栏,且当点击通知栏时,安装APK
updatePendingIntent = PendingIntent.getActivity(UpdateService. this , 0 , installIntent, 0 );
updateNotification.defaults = Notification.DEFAULT_SOUND; // 铃声提醒
updateNotification.setLatestEventInfo(UpdateService. this , getResources().getString(R.string.app_name),
"下载完成,点击安装" , updatePendingIntent);
updateNotificationManager.notify( 0 , updateNotification);
// 停止服务
stopService(updateIntent);
break ;
case DOWNLOAD_FAIL:
// 下载失败
updateNotification.setLatestEventInfo(UpdateService. this ,
getResources().getString(R.string.app_name),
"下载失败,网络连接超时" , updatePendingIntent);
updateNotificationManager.notify( 0 , updateNotification);
break ;
default :
stopService(updateIntent);
break ;
}
}
};
}
|
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/jueblog/article/details/15013635