Android软件更新
16lz
2021-12-04
Android软件更新
//得到当前版本编码和版本名称、public static int getVerCode(Context context) { int verCode = -1; try { verCode = context.getPackageManager().getPackageInfo("com.example", 0).versionCode; } catch (NameNotFoundException e) { Log.e(TAG, e.getMessage()); } return verCode; } public static String getVerName(Context context) { String verName = ""; try { verName = context.getPackageManager().getPackageInfo("com.example", 0).versionName; } catch (NameNotFoundException e) { Log.e(TAG, e.getMessage()); } return verName; } public static String getAppName(Context context) { String verName = context.getResources().getText(R.string.app_name).toString(); return verName; }
// 获取更新版本内容
public static String getContent(String url) throws Exception{ StringBuilder sb = new StringBuilder(); HttpClient client = new DefaultHttpClient(); HttpParams httpParams = client.getParams(); //设置网络超时参数 HttpConnectionParams.setConnectionTimeout(httpParams, 3000); HttpConnectionParams.setSoTimeout(httpParams, 5000); HttpResponse response = client.execute(new HttpGet(url)); HttpEntity entity = response.getEntity(); if (entity != null) { BufferedReader reader = new BufferedReader(new InputStreamReader(entity.getContent(), "UTF-8"), 8192); String line = null; while ((line = reader.readLine())!= null){ sb.append(line + "\n"); } reader.close(); } return sb.toString(); }// 判断是否得到了服务器传来的版本号
private boolean getServerVerCode() { try { String verjson = NetworkTool.getContent(Config.UPDATE_SERVER + Config.UPDATE_VERJSON); JSONArray array = new JSONArray(verjson); if (array.length() > 0) { JSONObject obj = array.getJSONObject(0); try { newVerCode = Integer.parseInt(obj.getString("verCode")); newVerName = obj.getString("verName"); } catch (Exception e) { newVerCode = -1; newVerName = ""; return false; } } } catch (Exception e) { Log.e(TAG, e.getMessage()); return false; } return true; }// 如果版本号得到了就更新，否则不更新
if (getServerVerCode()) { int vercode = Config.getVerCode(this); if (newVerCode > vercode) { doNewVersionUpdate(); } else { notNewVersionShow(); } }// 更新软件的代码
private void doNewVersionUpdate() { int verCode = Config.getVerCode(this); String verName = Config.getVerName(this); StringBuffer sb = new StringBuffer(); sb.append("当前版本:"); sb.append(verName); sb.append(" Code:"); sb.append(verCode); sb.append(", 发现新版本:"); sb.append(newVerName); sb.append(" Code:"); sb.append(newVerCode); sb.append(", 是否更新?"); Dialog dialog = new AlertDialog.Builder(UpdateActivity.this) .setTitle("软件更新") .setMessage(sb.toString()) // 设置内容 .setPositiveButton("更新",// 设置确定按钮 new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { pBar = new ProgressDialog(UpdateActivity.this); pBar.setTitle("正在下载"); pBar.setMessage("请稍候..."); pBar.setProgressStyle(ProgressDialog.STYLE_SPINNER); downFile(Config.UPDATE_SERVER + Config.UPDATE_APKNAME); } }) .setNegativeButton("暂不更新", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog,int whichButton) { // 点击"取消"按钮之后退出程序 finish(); } }).create();// 创建 // 显示对话框 dialog.show(); } void downFile(final String url) { pBar.show(); new Thread() { public void run() { HttpClient client = new DefaultHttpClient(); HttpGet get = new HttpGet(url); HttpResponse response; try { response = client.execute(get); HttpEntity entity = response.getEntity(); long length = entity.getContentLength(); InputStream is = entity.getContent(); FileOutputStream fileOutputStream = null; if (is != null) { File file = new File( Environment.getExternalStorageDirectory(),Config.UPDATE_SAVENAME); fileOutputStream = new FileOutputStream(file); byte[] buf = new byte[1024]; int ch = -1; int count = 0; while ((ch = is.read(buf)) != -1) { fileOutputStream.write(buf, 0, ch); count += ch; if (length > 0) { } } } fileOutputStream.flush(); if (fileOutputStream != null) { fileOutputStream.close(); } down(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }.start(); } void down() { handler.post(new Runnable() { public void run() { pBar.cancel(); update(); } }); } void update() { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory(), Config.UPDATE_SAVENAME)), "application/vnd.android.package-archive"); startActivity(intent); }// 不更新软件的代码
private void notNewVersionShow() { int verCode = Config.getVerCode(this); String verName = Config.getVerName(this); StringBuffer sb = new StringBuffer(); sb.append("当前版本:"); sb.append(verName); sb.append(" Code:"); sb.append(verCode); sb.append(",\n已是最新版,无需更新!"); Dialog dialog = new AlertDialog.Builder(UpdateActivity.this) .setTitle("软件更新").setMessage(sb.toString())// 设置内容 .setPositiveButton("确定",// 设置确定按钮 new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog,int which) { finish(); } }).create();// 创建 // 显示对话框 dialog.show(); }
代码下载链接：http://www.apkbus.com/android-153953-1-1.html
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