[android] apk 版本升级

[转自]http://blog.csdn.net/furongkang/article/details/6886526
Android自动检测版本及自动升级

步骤：

1.检测当前版本的信息AndroidManifest.xml-->manifest-->android:versionName。

2.从服务器获取版本号（版本号存在于xml文件中）并与当前检测到的版本进行匹配，如果不匹配，提示用户进行升级，如果匹配则进入程序主界面。

3.当提示用户进行版本升级时，如果用户点击了确定，系统将自动从服务器上下载并进行自动升级，如果点击取消将进入程序主界面。

效果图：

获取当前程序的版本号:

private String getVersionName() throws Exception{

//获取packagemanager的实例

PackageManager packageManager = getPackageManager();

//getPackageName()是你当前类的包名，0代表是获取版本信息

PackageInfo packInfo = packageManager.getPackageInfo(getPackageName(), 0);

return packInfo.versionName;

}

private String getVersionName() throws Exception{ //获取packagemanager的实例 PackageManager packageManager = getPackageManager(); //getPackageName()是你当前类的包名，0代表是获取版本信息 PackageInfo packInfo = packageManager.getPackageInfo(getPackageName(), 0); return packInfo.versionName; }

获取服务器端的版本号：

public static UpdataInfo getUpdataInfo(InputStream is) throws Exception{

XmlPullParser parser = Xml.newPullParser();

parser.setInput(is, "utf-8");//设置解析的数据源

int type = parser.getEventType();

UpdataInfo info = new UpdataInfo();//实体

while(type != XmlPullParser.END_DOCUMENT ){

switch (type) {

case XmlPullParser.START_TAG:

if("version".equals(parser.getName())){

info.setVersion(parser.nextText()); //获取版本号

}else if ("url".equals(parser.getName())){

info.setUrl(parser.nextText()); //获取要升级的APK文件

}else if ("description".equals(parser.getName())){

info.setDescription(parser.nextText()); //获取该文件的信息

}

break;

}

type = parser.next();

}

return info;

}

 public static UpdataInfo getUpdataInfo(InputStream is) throws Exception{ XmlPullParser parser = Xml.newPullParser(); parser.setInput(is, "utf-8");//设置解析的数据源 int type = parser.getEventType(); UpdataInfo info = new UpdataInfo();//实体 while(type != XmlPullParser.END_DOCUMENT ){ switch (type) { case XmlPullParser.START_TAG: if("version".equals(parser.getName())){ info.setVersion(parser.nextText()); //获取版本号 }else if ("url".equals(parser.getName())){ info.setUrl(parser.nextText()); //获取要升级的APK文件 }else if ("description".equals(parser.getName())){ info.setDescription(parser.nextText());//获取该文件的信息 } break; } type = parser.next(); } return info; }

从服务器下载apk:

public static File getFileFromServer(String path, ProgressDialog pd) throws Exception{

//如果相等的话表示当前的sdcard挂载在手机上并且是可用的

if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){

URL url = new URL(path);

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setConnectTimeout(5000);

//获取到文件的大小

pd.setMax(conn.getContentLength());

InputStream is = conn.getInputStream();

File file = new File(Environment.getExternalStorageDirectory(), "updata.apk");

FileOutputStream fos = new FileOutputStream(file);

BufferedInputStream bis = new BufferedInputStream(is);

byte[] buffer = new byte[1024];

int len ;

int total=0;

while((len =bis.read(buffer))!=-1){

fos.write(buffer, 0, len);

total+= len;

//获取当前下载量

pd.setProgress(total);

}

fos.close();

bis.close();

is.close();

return file;

}

else{

return null;

}

}

public static File getFileFromServer(String path, ProgressDialog pd) throws Exception{ //如果相等的话表示当前的sdcard挂载在手机上并且是可用的 if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){ URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5000); //获取到文件的大小 pd.setMax(conn.getContentLength()); InputStream is = conn.getInputStream(); File file = new File(Environment.getExternalStorageDirect<wbr>ory(), "updata.apk"); FileOutputStream fos = new FileOutputStream(file); BufferedInputStream bis = new BufferedInputStream(is); byte[] buffer = new byte[1024]; int len ; int total=0; while((len =bis.read(buffer))!=-1){ fos.write(buffer, 0, len); total+= len; //获取当前下载量 pd.setProgress(total); } fos.close(); bis.close(); is.close(); return file; } else{ return null; } }</wbr>

public class CheckVersionTask implements Runnable{

public void run() {

try {

//从资源文件获取服务器 地址

String path = getResources().getString(R.string.serverurl);

//包装成url的对象

URL url = new URL(path);

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setConnectTimeout(5000);

InputStream is =conn.getInputStream();

info = UpdataInfoParser.getUpdataInfo(is);

if(info.getVersion().equals(versionname)){

Log.i(TAG,"版本号相同无需升级");

LoginMain();

}else{

Log.i(TAG,"版本号不同 ,提示用户升级 ");

Message msg = new Message();

msg.what = UPDATA_CLIENT;

handler.sendMessage(msg);

}

} catch (Exception e) {

// 待处理

Message msg = new Message();

msg.what = GET_UNDATAINFO_ERROR;

handler.sendMessage(msg);

e.printStackTrace();

}

}

}

Handler handler = new Handler(){

@Override

public void handleMessage(Message msg) {

// TODO Auto-generated method stub

super.handleMessage(msg);

switch (msg.what) {

case UPDATA_CLIENT:

//对话框通知用户升级程序

showUpdataDialog();

break;

case GET_UNDATAINFO_ERROR:

//服务器超时

Toast.makeText(getApplicationContext(), "获取服务器更新信息失败", 1).show();

LoginMain();

break;

case DOWN_ERROR:

//下载apk失败

Toast.makeText(getApplicationContext(), "下载新版本失败", 1).show();

LoginMain();

break;

}

}

};

protected void showUpdataDialog() {

AlertDialog.Builder builer = new Builder(this) ;

builer.setTitle("版本升级");

builer.setMessage(info.getDescription());

//当点确定按钮时从服务器上下载 新的apk 然后安装

builer.setPositiveButton("确定", new OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

Log.i(TAG,"下载apk,更新");

downLoadApk();

}

});

//当点取消按钮时进行登录

builer.setNegativeButton("取消", new OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

LoginMain();

}

});

AlertDialog dialog = builer.create();

dialog.show();

}

protected void downLoadApk() {

final ProgressDialog pd; //进度条对话框

pd = new ProgressDialog(this);

pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);

pd.setMessage("正在下载更新");

pd.show();

new Thread(){

@Override

public void run() {

try {

File file = DownLoadManager.getFileFromServer(info.getUrl(), pd);

sleep(3000);

installApk(file);

pd.dismiss(); //结束掉进度条对话框

} catch (Exception e) {

Message msg = new Message();

msg.what = DOWN_ERROR;

handler.sendMessage(msg);

e.printStackTrace();

}

}}.start();

}

//安装apk

protected void installApk(File file) {

Intent intent = new Intent();

//执行动作

intent.setAction(Intent.ACTION_VIEW);

//执行的数据类型

intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");

startActivity(intent);

}

private void LoginMain(){

Intent intent = new Intent(this,MainActivity.class);

startActivity(intent);

//结束掉当前的activity

this.finish();

}

public class CheckVersionTask implements Runnable{ public void run() { try { //从资源文件获取服务器 地址 String path = getResources().getString(R.string.serverurl); //包装成url的对象 URL url = new URL(path); HttpURLConnection conn = (HttpURLConnection)url.openConnection();

 conn.setConnectTimeout(5000); InputStream is =conn.getInputStream(); info = UpdataInfoParser.getUpdataInfo(is); if(info.getVersion().equals(versionname)){ Log.i(TAG,"版本号相同无需升级"); LoginMain(); }else{ Log.i(TAG,"版本号不同 ,提示用户升级 "); Message msg = new Message(); msg.what = UPDATA_CLIENT; handler.sendMessage(msg); } } catch (Exception e) { // 待处理 Message msg = new Message(); msg.what = GET_UNDATAINFO_ERROR; handler.sendMessage(msg); e.printStackTrace(); } } } Handler handler = new Handler(){ @Override public void handleMessage(Message msg) { // TODO Auto-generated method stub super.handleMessage(msg); switch (msg.what) { case UPDATA_CLIENT: //对话框通知用户升级程序 showUpdataDialog(); break; case GET_UNDATAINFO_ERROR: //服务器超时 Toast.makeText(getApplicationContext(),"获取服务器更新信息失败", 1).show(); LoginMain(); break; case DOWN_ERROR: //下载apk失败 Toast.makeText(getApplicationContext(), "下载新版本失败", 1).show(); LoginMain(); break; } } }; protected void showUpdataDialog() { AlertDialog.Builder builer = new Builder(this) ; builer.setTitle("版本升级"); builer.setMessage(info.getDescription()); //当点确定按钮时从服务器上下载 新的apk 然后安装 builer.setPositiveButton("确定", new OnClickListener() { public void onClick(DialogInterface dialog, int which) { Log.i(TAG,"下载apk,更新"); downLoadApk(); } }); //当点取消按钮时进行登录 builer.setNegativeButton("取消", new OnClickListener() { public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub LoginMain(); } }); AlertDialog dialog = builer.create(); dialog.show(); } protected void downLoadApk() { final ProgressDialog pd; //进度条对话框 pd = new ProgressDialog(this); pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); pd.setMessage("正在下载更新"); pd.show(); new Thread(){ @Override public void run() { try { File file = DownLoadManager.getFileFromServer(info.getUrl(), pd); sleep(3000); installApk(file); pd.dismiss(); //结束掉进度条对话框 } catch (Exception e) { Message msg = new Message(); msg.what = DOWN_ERROR; handler.sendMessage(msg); e.printStackTrace(); } }}.start(); } //安装apk protected void installApk(File file) { Intent intent = new Intent(); //执行动作 intent.setAction(Intent.ACTION_VIEW); //执行的数据类型 intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive"); startActivity(intent); } private void LoginMain(){ Intent intent = new Intent(this,MainActivity.class); startActivity(intent); //结束掉当前的activity this.finish(); }

UpdataInfo：

private String version;

private String url;

private String description;

public String getVersion() {

return version;

}

public void setVersion(String version) {

this.version = version;

}

public String getUrl() {

return url;

}

public void setUrl(String url) {

this.url = url;

}

public String getDescription() {

return description;

}

public void setDescription(String description) {

this.description = description;

}

}

public class UpdataInfo { private String version; private String url; private String description; public String getVersion() { return version; } public void setVersion(String version) { this.version = version; } public String getUrl() { return url; } public void setUrl(String url) { this.url = url; } public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } }

update.xml: