带进度条的Android状态栏通知

我目前有一个状态栏通知，当从网址下载mp3时熄灭。它启动罚款（和文件确实下载正常），但是，进度栏不会进展。它保持静止。我不确定在哪里放置代码，以便通知下载进度。有任何想法吗？带进度条的Android状态栏通知

谢谢。

这里是我的代码部分：

public class DownloadFile extends AsyncTask<String, Integer, String>{ 
     @Override 
     protected String doInBackground(String... url) { 
      try { 
       URL url2 = new URL(sdrUrl); 
       HttpURLConnection c = (HttpURLConnection) url2.openConnection(); 
       c.setRequestMethod("GET"); 
       c.setDoOutput(true); 
       c.connect(); 

       int lengthOfFile = c.getContentLength(); 

       String PATH = Environment.getExternalStorageDirectory() 
         + "/download/"; 
       Log.v("", "PATH: " + PATH); 
       File file = new File(PATH); 
       file.mkdirs(); 

       String [] path = url2.getPath().split("/"); 
       String mp3 = path [path.length-1]; 
       String sdrMp3 = mp3.replace("%20", ""); 

       File outputFile = new File(file, sdrMp3); 
       FileOutputStream fos = new FileOutputStream(outputFile); 

       InputStream is = c.getInputStream(); 

       byte[] buffer = new byte[1024]; 
       int len1 = 0; 
       while ((len1 = is.read(buffer)) != -1) { 
        publishProgress((int)(len1*100/lengthOfFile)); 
        fos.write(buffer, 0, len1); 
       } 
       fos.close(); 
       is.close(); 

       }catch (IOException e) { 
         e.printStackTrace(); 
       } 


      return null; 
     } 

     @Override 
     public void onProgressUpdate(Integer... values) { 


      super.onProgressUpdate(values); 
     } 



    } 

    public void DownloadNotification(){ 

     Intent intent = new Intent(this, BlogActivity.class); 
     final PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, 0); 

     final Notification notification = new Notification(R.drawable.sdricontest, "Downloading...", System 
       .currentTimeMillis()); 
     notification.flags = notification.flags | Notification.FLAG_ONGOING_EVENT; 
     notification.contentView = new RemoteViews(getApplicationContext().getPackageName(), R.layout.notification_layout); 
     notification.contentIntent = pendingIntent; 
     notification.contentView.setImageViewResource(R.id.download_icon, R.drawable.sdricontest); 
     notification.contentView.setTextViewText(R.id.download_text, "simulation in progress"); 
     notification.contentView.setProgressBar(R.id.download_progress, 100, progress, false); 

     getApplicationContext(); 
     final NotificationManager notificationManager = (NotificationManager) getApplicationContext().getSystemService(
       Context.NOTIFICATION_SERVICE); 
     notificationManager.notify(42, notification); 
    } 

}

来源

2011-07-28 Splitusa

-1

请尝试以下 -

public class DownloadFile extends AsyncTask<String, Integer, String>{ 
    ProgressDialog pd; 

    public DownloadFile() { 
    super(); 
    pd = ProgressDialog.show(context, "Loading..", "Doing Stuff", true,false); 
    } 

    @Override 
    protected String doInBackground(String... url) { 
     //stuff 
    } 


    @Override 
    protected void onPostExecute (Boolean result){ 

    pd.dismiss(); 

    } 


}

来源

2011-07-28 22:11:12 Suchi

这只是ANR我的应用程序。当用户按下按钮时，我正在执行我的异步命令并下载通知。 – Splitusa

我已经添加了构造函数和onPostExecute。这是我自己的代码的一个撕裂，它工作。 – Suchi

因此，您没有使用状态栏通知，而是显示在屏幕上的进度对话框加载栏... – Splitusa

http://developer.android.com/training/notify-user/display-progress.html

这会为你工作，直到应用程序是在前台运行。如果应用停止进度条卡住。它更好地使用服务下载

来源

2015-09-14 17:48:15 HimalayanCoder

带进度条的Android状态栏通知

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