android apk版本更新

浏览数：25 / 时间：2015年06月11日

android apk版本更新

/**
   * 获取版本名称
   *
   * @return version
   */
   private String getVersionName() {
       try {
           // 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);
           version = packInfo.versionName;// versionName是获取版本名称还有版本号等等...
       } catch (NameNotFoundException e) {
           e.printStackTrace();
       }
       return version;
   }

activity类调用

// 这里来检测版本是否需要更新
               UpdateManager mUpdateManager = new UpdateManager(
                       SettingActivity.this);
               mUpdateManager.checkUpdateInfo();

public class UpdateManager {

   private Context mContext;
   /* 下载包安装路径 */
   private static final String savePath = "//sdcard//updatedemo//";
   private static final String saveFileName = savePath + "licaike.apk";
   /* 进度条与通知ui刷新的handler和msg常量 */

   private int progress;
   private ProgressDialogUtil pdu;

   private boolean interceptFlag = true;

   @SuppressLint("HandlerLeak")
   private Handler mHandler = new Handler() {
       public void handleMessage(Message msg) {
           switch (msg.what) {
           case 0x123:
               pdu.setProgress(progress);
               break;
           case 0x124: // 安装apk
               File apkfile = new File(saveFileName);
               if (!apkfile.exists()) {
                   return;
               }
               Intent i = new Intent(Intent.ACTION_VIEW);
               i.setDataAndType(Uri.parse("file://" + apkfile.toString()),
                       "application/vnd.android.package-archive");
               mContext.startActivity(i);
               pdu.dismiss();
               break;
           default:
               break;
           }
       };
   };

   public UpdateManager(Context context) {
       this.mContext = context;
   }

   // 外部接口让主Activity调用
   public void checkUpdateInfo() {
       final AlertDialogUtil dialogUtil = new AlertDialogUtil(mContext, false,
               null);
       dialogUtil.setMessage("请更新新版本");
       dialogUtil.setBtnPositiveValue("更新");
       dialogUtil.setPositiveClickListener(new View.OnClickListener() {

           @Override
           public void onClick(View arg0) {
               showDownloadDialog();
               dialogUtil.dismiss();
           }
       });
       dialogUtil.setBtnNegativeValue("取消");
       dialogUtil.setNegativeClickListener(new View.OnClickListener() {

           @Override
           public void onClick(View arg0) {
               dialogUtil.dismiss();
           }
       });
       dialogUtil.show();

   }

   private void showDownloadDialog() {
       // 下载apk
       downLoadThread();
       pdu = new ProgressDialogUtil(mContext, false, null);
       pdu.setMessage("软件正在更新中...");
       pdu.setBtnNegativeValue("取消");
       pdu.setNegativeClickListener(new View.OnClickListener() {

           @Override
           public void onClick(View arg0) {
               interceptFlag = false;
               pdu.dismiss();
           }
       });
       pdu.show();
   }

   private void downLoadThread() {
       new Thread(new Runnable() {

           @Override
           public void run() {
               InputStream is = null;
               FileOutputStream fos = null;
               try {
                   // 返回的安装包url
                   String apkUrl = "http://d.m.hexun.com/app/licaike.apk";
                   URL url = new URL(apkUrl);
                   HttpURLConnection conn = (HttpURLConnection) url
                           .openConnection();
                   conn.connect();
                   int length = conn.getContentLength();
                   is = conn.getInputStream();

                   File file = new File(savePath);
                   if (!file.exists()) {
                       file.mkdir();
                   }
                   String apkFile = saveFileName;
                   File ApkFile = new File(apkFile);
                   fos = new FileOutputStream(ApkFile);

                   int count = 0;
                   byte buf[] = new byte[1024];
                   while (interceptFlag) {// 点击取消就停止下载.
                       int numread = is.read(buf);
                       count += numread;
                       progress = (int) (((float) count / length) * 100);
                       // 更新进度
                       mHandler.sendEmptyMessage(0x123);
                       if (numread <= 0) {
                           // 下载完成通知安装
                           mHandler.sendEmptyMessage(0x124);
                           break;
                       }
                       fos.write(buf, 0, numread);
                   }
               } catch (Exception e) {
                   e.printStackTrace();
               } finally {
                   try {
                       if (fos != null)
                           fos.close();
                       if (is != null)
                           is.close();
                   } catch (Exception e) {
                   } finally {
                       fos = null;
                       is = null;
                   }
               }

           }
       }).start();
   }

}