Android 版本更新 请求Web 服务器

.版本升级 就是拿到清单文件中android:versionCode="1"个服务器versionServer 进行对比，versionServer >android:versionCode 升级，拿到返回的apk下载链接，安装。

1.拿到本地versionCode 

//获取版本号public static int getVersion(Context context){int version = 0;try {  version = context.getPackageManager().getPackageInfo(                      "你项目的包名", 0).versionCode;   //包名对应AndroidManifest.xm  package="……"           } catch (Exception e) {           System.out.println("获取版本号异常！");        }  return version;}

2.拿到本地传到服务器  有服务器判断 返回下载链接

3.开启子线程进行网络请求

//版本升级 String DEVICE_ID=null;//唯一标识码int version;String Strversion=null;//版本号转StringThread serviceThread; AlertDialog.Builder adb;private String Downurl=null;//下载链接

serviceThread= new Thread(new Runnable() {@Overridepublic void run() {// TODO Auto-generated method stubString namespace ="http://tempuri.org/";//targetNamespace="http://tempuri.org/">String transUrl ="";//接口String method  ="VersionUpgrade";//s:element name="VersionUpgrade">//后台询问或者从wsdl文档或者服务说明中查看int envolopeVersion =SoapEnvelope.VER12;//SoapObject request=new SoapObject(namespace, method);    Log.i("TAG", "版本号version====="+Strversion +"识别码DEVICE_ID====="+DEVICE_ID);    request.addProperty("versionNo", version);    request.addProperty("machineCode", Strversion);//本机唯一识别码 不需要可以不传        SoapSerializationEnvelope envelope=new SoapSerializationEnvelope(envolopeVersion);    envelope.setOutputSoapObject(request);envelope.dotNet=true;HttpTransportSE httpse=new HttpTransportSE(transUrl);try {httpse.call(null, envelope);} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (XmlPullParserException e) {// TODO Auto-generated catch blocke.printStackTrace();}Object response;try { response = (Object) envelope.getResponse();if (response!=null) {//如果返回不为bull 则可以升级，如果是null 则不需要更新SoapObject result = (SoapObject) envelope.bodyIn;  Downurl = result.getProperty(0).toString();  Log.i("TAG", "response"+response); Log.i("TAG", "下载链接Downurl"+Downurl); handler.sendEmptyMessage(1);}else {  AlertDialog.Builder builder  = new Builder(getActivity());              builder.setTitle("版本信息" ) ;              builder.setMessage("当前已经是最新版本" ) ;              builder.setPositiveButton("确定",null);              builder.show();Log.i("TAG", "无返回值");Toast.makeText(getActivity(), "无最新版本", Toast.LENGTH_LONG).show();}} catch (SoapFault e) {// TODO Auto-generated catch blocke.printStackTrace();}}});

4.得到下载链接后

 hander 发消息 

 handler.sendEmptyMessage(1);

5.开启handle 

private Handler handler = new Handler(){@Overridepublic void handleMessage(Message msg) {switch (msg.what) {case 1: showUpdateDialog();是否更新Dialog Log.i("TAG", "case 1:============case 1:");                 break;}}};

private void showUpdateDialog() { //弹出对话框提示更新adb = new AlertDialog.Builder(getActivity());        adb.setTitle("发现新版本");            adb.setCancelable(false);//要么点击确定，要么点击取消。否则不会关闭dialog        adb.setNegativeButton("确定", new DialogInterface.OnClickListener() {            public void onClick(DialogInterface dialog, int which) {                //下载更新的APK                downUpdateAPK();            }        });        adb.setPositiveButton("取消",null);                  adb.show();}

6.得到 Url 下载 就好比从服务器下载图片一样了

  6.1判断是否有sd卡

 String storageState = Environment.getExternalStorageState();                if (storageState.equals(Environment.MEDIA_MOUNTED)) {                    savePath = Environment.getExternalStorageDirectory()                            .getAbsolutePath() + "/update/";                    File file = new File(savePath);                    if (!file.exists()) {                        file.mkdir();                    }                    apkFilePath = savePath + apkName;                    tmpFilePath = savePath + tmpApk;                    Log.i("apkUrl","tmpFilePath"+tmpFilePath );                }

6.2  开启线程 下载

downloadThread = new Thread(mdownApkRunnable);

    private Runnable mdownApkRunnable = new Runnable() {        @Override        public void run() {            try {                String apkName = "AccessControllSystem" + ".apk";                String tmpApk = "AccessControllSystem" + ".tmp";                // 判断是否挂载了sd卡                String storageState = Environment.getExternalStorageState();                if (storageState.equals(Environment.MEDIA_MOUNTED)) {                    savePath = Environment.getExternalStorageDirectory()                            .getAbsolutePath() + "/update/";                    File file = new File(savePath);                    if (!file.exists()) {                        file.mkdir();                    }                    apkFilePath = savePath + apkName;                    tmpFilePath = savePath + tmpApk;                    Log.i("apkUrl","tmpFilePath"+tmpFilePath );                }                // 没有挂载sd卡，无法下载                if (apkFilePath == null || apkFilePath == "") {                    mhandler.sendEmptyMessage(DOWN_NOSDCARD);                    return;                }                File ApkFile = new File(apkFilePath);                // 输出临时文件                File tempFile = new File(tmpFilePath);                FileOutputStream fos = new FileOutputStream(tempFile);                URL url = new URL(apkUrl);                // 定义url链接对象                HttpURLConnection conn = (HttpURLConnection) url.openConnection();                conn.connect(); // 建立链接                int length = conn.getContentLength(); // 得到链接内容的                InputStream is = conn.getInputStream();                DecimalFormat df = new DecimalFormat("0.00");                apkFileSize = df.format((float) length / 1024 / 1024) + "MB";                int count = 0;                byte buf[] = new byte[1024];                // 循环下载                do {                    int numread = is.read(buf);                    count += numread;                    tmpFileSize = df.format((float) count / 1024 / 1024) + "MB";                    progress = (int) (((float) count / length) * 100);                  Log.i("TAG", "tmpFileSize"+tmpFileSize);                                    mhandler.sendEmptyMessage(DOWN_UPDATE);                    if (numread <= 0) {                        if (tempFile.renameTo(ApkFile)) {                            // 下载完成                            mhandler.sendEmptyMessage(DOWN_OVER);                        }                        break;                    }                    fos.write(buf, 0, numread);                } while (!interceptFlag);                fos.close();                is.close();            } catch (Exception ex) {                ex.printStackTrace();            }        }    };

6.4安装

    private void installApk() {        File apkfile = new File(apkFilePath);        if (!apkfile.exists()) {            return;        }        // 如果存在，启动安装流程        Intent i = new Intent(Intent.ACTION_VIEW);        i.setDataAndType(Uri.parse("file://" + apkfile.toString()),"application/vnd.android.package-archive");        context.startActivity(i);    }

1.启动网络webservice 通过SOAP（是web service的标准通信协议，SOAP为simple object access protocoll的缩写，简单对象访问协议. 它是一种标准化的传输消息的XML消息格式）.需要导jar： ksoap2-android-assembly-2.6.0-jar-with-dependencies.jar

2.开启线程