Download a file with Android and showing the progress in a ProgressDialog

Question

I am trying to write a simple application that gets updated  For this I need a simple function that can download a file and show the current progress in a ProgressDialog  I know how to do the ProgressDialog  but I m not sure how to display the current progress and how to download the file in the first place

User · Answer

Important  AsyncTask is deprecated in Android 11   For more information please checkout following posts   Android AsyncTask API deprecating in Android 11 What are the alternatives  https   developer android com reference android os AsyncTask   Probably should move to concorency Framework as suggested by google

User · Answer

Don t forget to add permissions to your manifest file if you re gonna be downloading stuff from the internet    lt manifest xmlns android  http   schemas android com apk res android      package  com example helloandroid      android versionCode  1      android versionName  1 0  gt            lt uses-sdk android minSdkVersion  10    gt            lt uses-permission android name  android permission WRITE EXTERNAL STORAGE  gt  lt  uses-permission gt           lt uses-permission android name  android permission INTERNET  gt  lt  uses-permission gt           lt uses-permission android name  android permission ACCESS NETWORK STATE  gt  lt  uses-permission gt           lt uses-permission android name  android permission READ PHONE STATE  gt  lt  uses-permission gt            lt application              android icon   drawable icon               android label   string app name               android debuggable  true  gt            lt  application gt    lt  manifest gt

User · Answer

My personal advice is to use Progress Dialog and build up before execution   or initiate at OnPreExecute     publish progress often if you use horizontal style of progress bar of the progress dialog  The remaining part is to optimize the algorithm of doInBackground

User · Answer

I found this blog post very helpful  Its using loopJ to download file  it has only one Simple function  will be helpful to some new android guys

User · Answer

Use Android Query library  very cool indeed You can change it to use ProgressDialog as you see in other examples  this one will show progress view from your layout and hide it after completion   File target   new File new File Environment getExternalStorageDirectory     ApplicationName     tmp pdf    new AQuery this  progress R id progress view  download  competition qualificationScoreCardsPdf    target  new AjaxCallback lt File gt          public void callback String url  File file  AjaxStatus status            if  file    null                   do something with file

User · Answer

You can observer the progress of the download manager using LiveData and coroutines  see the gist below  https   gist github com FhdAlotaibi 678eb1f4fa94475daf74ac491874fc0e  data class DownloadItem val bytesDownloadedSoFar  Long   -1  val totalSizeBytes  Long   -1  val status  Int   class DownloadProgressLiveData private val application  Application  private val requestId  Long    LiveData lt DownloadItem gt     CoroutineScope        private val downloadManager by lazy           application getSystemService Context DOWNLOAD SERVICE  as DownloadManager            private val job   Job        override val coroutineContext  CoroutineContext         get     Dispatchers IO   job      override fun onActive             super onActive           launch               while  isActive                    val query   DownloadManager Query   setFilterById requestId                  val cursor   downloadManager query query                  if  cursor moveToFirst                          val status   cursor getInt cursor getColumnIndex DownloadManager COLUMN STATUS                       Timber d  Status  status                       when  status                            DownloadManager STATUS SUCCESSFUL                          DownloadManager STATUS PENDING                          DownloadManager STATUS FAILED                          DownloadManager STATUS PAUSED - gt  postValue DownloadItem status   status                           else - gt                                val bytesDownloadedSoFar   cursor getInt cursor getColumnIndex DownloadManager COLUMN BYTES DOWNLOADED SO FAR                               val totalSizeBytes   cursor getInt cursor getColumnIndex DownloadManager COLUMN TOTAL SIZE BYTES                               postValue DownloadItem bytesDownloadedSoFar toLong    totalSizeBytes toLong    status                                                                       if  status    DownloadManager STATUS SUCCESSFUL    status    DownloadManager STATUS FAILED                          cancel                     else                       postValue DownloadItem status   DownloadManager STATUS FAILED                       cancel                                     cursor close                   delay 300                                     override fun onInactive             super onInactive           job cancel

User · Answer

We can use the coroutine and work manager for downloading files in kotlin   Add a dependency in build gradle      implementation  androidx work work-runtime-ktx 2 3 0-beta01      implementation  org jetbrains kotlinx kotlinx-coroutines-android 1 3 1    WorkManager class      import android content Context     import android os Environment     import androidx work CoroutineWorker     import androidx work WorkerParameters     import androidx work workDataOf     import com sa chat utils Const BASE URL IMAGE     import com sa chat utils Constants     import kotlinx coroutines delay     import java io BufferedInputStream     import java io File     import java io FileOutputStream     import java net URL      class DownloadMediaWorkManager appContext  Context  workerParams  WorkerParameters            CoroutineWorker appContext  workerParams             companion object               const val WORK TYPE    WORK TYPE              const val WORK IN PROGRESS    WORK IN PROGRESS              const val WORK PROGRESS VALUE    WORK PROGRESS VALUE                     override suspend fun doWork    Result                val imageUrl   inputData getString Constants WORK DATA MEDIA URL              val imagePath   downloadMediaFromURL imageUrl               return if   imagePath isNullOrEmpty                      Result success workDataOf Constants WORK DATA MEDIA URL to imagePath                 else                   Result failure                                    private suspend fun downloadMediaFromURL imageUrl  String    String                 val file   File                      getRootFile   path                       IMG   System currentTimeMillis    jpeg                             val url   URL BASE URL IMAGE   imageUrl              val connection   url openConnection               connection connect                val lengthOfFile   connection contentLength                download the file             val input   BufferedInputStream url openStream    8192                 Output stream             val output   FileOutputStream file               val data   ByteArray 1024              var total  Long   0             var last   0              while  true                     val count   input read data                  if  count    -1  break                 total    count toLong                    val progress    total   100   lengthOfFile  toInt                    if  progress   10    0                        if  last    progress                            setProgress workDataOf WORK TYPE to WORK IN PROGRESS                                  WORK PROGRESS VALUE to progress                                             last   progress                     delay 50                                    output write data  0  count                             output flush               output close               input close                return file path                     private fun getRootFile    File                val rootDir   File Environment getExternalStorageDirectory   absolutePath     AppName                if   rootDir exists                      rootDir mkdir                              val dir   File   rootDir   Constants IMAGE FOLDER                  if   dir exists                      dir mkdir                             return File dir absolutePath                    Start downloading through work manager in activity class    private fun downloadImage imagePath  String   id  String                 val data   workDataOf WORK DATA MEDIA URL to imagePath              val downloadImageWorkManager   OneTimeWorkRequestBuilder lt DownloadMediaWorkManager gt                         setInputData data                       addTag id                       build                WorkManager getInstance this  enqueue downloadImageWorkManager               WorkManager getInstance this  getWorkInfoByIdLiveData downloadImageWorkManager id                       observe this  Observer   workInfo - gt                           if  workInfo    null                                when                                   workInfo state    WorkInfo State SUCCEEDED - gt                                        progressBar  visibility   View GONE                                     ivDownload  visibility   View GONE                                                                   workInfo state    WorkInfo State FAILED    workInfo state    WorkInfo State CANCELLED    workInfo state    WorkInfo State BLOCKED - gt                                        progressBar  visibility   View GONE                                     ivDownload  visibility   View VISIBLE                                                                   else - gt                                        if workInfo progress getString WORK TYPE     WORK IN PROGRESS                                           val progress   workInfo progress getInt WORK PROGRESS VALUE  0                                          progressBar  visibility   View VISIBLE                                         progressBar  progress   progress                                         ivDownload  visibility   View GONE

User · Answer

I have modified AsyncTask class to handle creation of progressDialog at the same context  I think following code will be more reusable   it can be called from any activity just pass context target File dialog message   public static class DownloadTask extends AsyncTask lt String  Integer  String gt        private ProgressDialog mPDialog      private Context mContext      private PowerManager WakeLock mWakeLock      private File mTargetFile        Constructor parameters           context  current Activity          targetFile  File object to write it will be overwritten if exist          dialogMessage  message of the ProgresDialog      public DownloadTask Context context File targetFile String dialogMessage            this mContext   context          this mTargetFile   targetFile          mPDialog   new ProgressDialog context            mPDialog setMessage dialogMessage           mPDialog setIndeterminate true           mPDialog setProgressStyle ProgressDialog STYLE HORIZONTAL           mPDialog setCancelable true              reference to instance to use inside listener         final DownloadTask me   this          mPDialog setOnCancelListener new DialogInterface OnCancelListener                  Override             public void onCancel DialogInterface dialog                    me cancel true                                     Log i  DownloadTask   Constructor done                Override     protected String doInBackground String    sUrl            InputStream input   null          OutputStream output   null          HttpURLConnection connection   null          try               URL url   new URL sUrl 0                connection    HttpURLConnection  url openConnection                connection connect                    expect HTTP 200 OK  so we don t mistakenly save error report                instead of the file             if  connection getResponseCode      HttpURLConnection HTTP OK                    return  Server returned HTTP     connection getResponseCode                                   connection getResponseMessage                              Log i  DownloadTask   Response     connection getResponseCode                     this will be useful to display download percentage                might be -1  server did not report the length             int fileLength   connection getContentLength                    download the file             input   connection getInputStream                output   new FileOutputStream mTargetFile false                byte data     new byte 4096               long total   0              int count              while   count   input read data      -1                       allow canceling with back button                 if  isCancelled                          Log i  DownloadTask   Cancelled                        input close                        return null                                    total    count                     publishing the progress                     if  fileLength  gt  0     only if total length is known                     publishProgress  int   total   100   fileLength                    output write data  0  count                           catch  Exception e                return e toString              finally               try                   if  output    null                      output close                    if  input    null                      input close                  catch  IOException ignored                               if  connection    null                  connection disconnect                      return null             Override     protected void onPreExecute             super onPreExecute               take CPU lock to prevent CPU from going off if the user            presses the power button during download         PowerManager pm    PowerManager  mContext getSystemService Context POWER SERVICE           mWakeLock   pm newWakeLock PowerManager PARTIAL WAKE LOCK                  getClass   getName             mWakeLock acquire             mPDialog show                 Override     protected void onProgressUpdate Integer    progress            super onProgressUpdate progress              if we get here  length is known  now set indeterminate to false         mPDialog setIndeterminate false           mPDialog setMax 100           mPDialog setProgress progress 0                 Override     protected void onPostExecute String result            Log i  DownloadTask    Work Done  PostExecute            mWakeLock release            mPDialog dismiss            if  result    null              Toast makeText mContext  Download error    result  Toast LENGTH LONG  show            else             Toast makeText mContext  File Downloaded   Toast LENGTH SHORT  show

User · Answer

There are many ways to download files  Following I will post most common ways  it is up to you to decide which method is better for your app   1  Use AsyncTask and show the download progress in a dialog  This method will allow you to execute some background processes and update the UI at the same time  in this case  we ll update a progress bar    Imports   import android os PowerManager  import java io InputStream  import java io OutputStream  import java io FileOutputStream  import java net HttpURLConnection    This is an example code      declare the dialog as a member field of your activity ProgressDialog mProgressDialog      instantiate it within the onCreate method mProgressDialog   new ProgressDialog YourActivity this   mProgressDialog setMessage  A message    mProgressDialog setIndeterminate true   mProgressDialog setProgressStyle ProgressDialog STYLE HORIZONTAL   mProgressDialog setCancelable true       execute this when the downloader must be fired final DownloadTask downloadTask   new DownloadTask YourActivity this   downloadTask execute  the url to the file you want to download     mProgressDialog setOnCancelListener new DialogInterface OnCancelListener           Override     public void onCancel DialogInterface dialog            downloadTask cancel true     cancel the task             The AsyncTask will look like this      usually  subclasses of AsyncTask are declared inside the activity class     that way  you can easily modify the UI thread from here private class DownloadTask extends AsyncTask lt String  Integer  String gt         private Context context      private PowerManager WakeLock mWakeLock       public DownloadTask Context context            this context   context              Override     protected String doInBackground String    sUrl            InputStream input   null          OutputStream output   null          HttpURLConnection connection   null          try               URL url   new URL sUrl 0                connection    HttpURLConnection  url openConnection                connection connect                    expect HTTP 200 OK  so we don t mistakenly save error report                instead of the file             if  connection getResponseCode      HttpURLConnection HTTP OK                    return  Server returned HTTP     connection getResponseCode                                   connection getResponseMessage                                  this will be useful to display download percentage                might be -1  server did not report the length             int fileLength   connection getContentLength                    download the file             input   connection getInputStream                output   new FileOutputStream   sdcard file name extension                 byte data     new byte 4096               long total   0              int count              while   count   input read data      -1                       allow canceling with back button                 if  isCancelled                          input close                        return null                                    total    count                     publishing the progress                     if  fileLength  gt  0     only if total length is known                     publishProgress  int   total   100   fileLength                    output write data  0  count                           catch  Exception e                return e toString              finally               try                   if  output    null                      output close                    if  input    null                      input close                  catch  IOException ignored                               if  connection    null                  connection disconnect                      return null          The method above  doInBackground  runs always on a background thread  You shouldn t do any UI tasks there  On the other hand  the onProgressUpdate and onPreExecute run on the UI thread  so there you can change the progress bar        Override     protected void onPreExecute             super onPreExecute               take CPU lock to prevent CPU from going off if the user             presses the power button during download         PowerManager pm    PowerManager  context getSystemService Context POWER SERVICE           mWakeLock   pm newWakeLock PowerManager PARTIAL WAKE LOCK               getClass   getName             mWakeLock acquire            mProgressDialog show                Override     protected void onProgressUpdate Integer    progress            super onProgressUpdate progress              if we get here  length is known  now set indeterminate to false         mProgressDialog setIndeterminate false           mProgressDialog setMax 100           mProgressDialog setProgress progress 0                Override     protected void onPostExecute String result            mWakeLock release            mProgressDialog dismiss            if  result    null              Toast makeText context  Download error    result  Toast LENGTH LONG  show            else             Toast makeText context  File downloaded   Toast LENGTH SHORT  show            For this to run  you need the WAKE LOCK permission    lt uses-permission android name  android permission WAKE LOCK    gt    2  Download from Service  The big question here is  how do I update my activity from a service   In the next example we are going to use two classes you may not be aware of  ResultReceiver and IntentService  ResultReceiver is the one that will allow us to update our thread from a service  IntentService is a subclass of Service which spawns a thread to do background work from there  you should know that a Service runs actually in the same thread of your app  when you extends Service  you must manually spawn new threads to run CPU blocking operations    Download service can look like this   public class DownloadService extends IntentService       public static final int UPDATE PROGRESS   8344       public DownloadService             super  DownloadService               Override     protected void onHandleIntent Intent intent             String urlToDownload   intent getStringExtra  url            ResultReceiver receiver    ResultReceiver  intent getParcelableExtra  receiver            try                  create url and connect             URL url   new URL urlToDownload               URLConnection connection   url openConnection                connection connect                    this will be useful so that you can show a typical 0-100  progress bar             int fileLength   connection getContentLength                    download the file             InputStream input   new BufferedInputStream connection getInputStream                  String path     sdcard BarcodeScanner-debug apk                OutputStream output   new FileOutputStream path                byte data     new byte 1024               long total   0              int count              while   count   input read data      -1                    total    count                      publishing the progress                     Bundle resultData   new Bundle                    resultData putInt  progress    int   total   100   fileLength                    receiver send UPDATE PROGRESS  resultData                   output write data  0  count                                 close streams              output flush                output close                input close               catch  IOException e                e printStackTrace                       Bundle resultData   new Bundle            resultData putInt  progress   100            receiver send UPDATE PROGRESS  resultData             Add the service to your manifest    lt service android name   DownloadService   gt    And the activity will look like this      initialize the progress dialog like in the first example     this is how you fire the downloader mProgressDialog show    Intent intent   new Intent this  DownloadService class   intent putExtra  url    url of the file to download    intent putExtra  receiver   new DownloadReceiver new Handler      startService intent     Here is were ResultReceiver comes to play   private class DownloadReceiver extends ResultReceiver       public DownloadReceiver Handler handler            super handler               Override     protected void onReceiveResult int resultCode  Bundle resultData             super onReceiveResult resultCode  resultData            if  resultCode    DownloadService UPDATE PROGRESS                 int progress   resultData getInt  progress      get the progress             dialog setProgress progress                if  progress    100                    dialog dismiss                                      2 1 Use Groundy library  Groundy is a library that basically helps you run pieces of code in a background service  and it is based on the ResultReceiver concept shown above  This library is deprecated at the moment  This is how the whole code would look like   The activity where you are showing the dialog     public class MainActivity extends Activity        private ProgressDialog mProgressDialog        Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout main            findViewById R id btn download  setOnClickListener new View OnClickListener                 public void onClick View view                    String url     EditText  findViewById R id edit url   getText   toString   trim                    Bundle extras   new Bundler   add DownloadTask PARAM URL  url  build                    Groundy create DownloadExample this  DownloadTask class                           receiver mReceiver                           params extras                           queue                     mProgressDialog   new ProgressDialog MainActivity this                   mProgressDialog setProgressStyle ProgressDialog STYLE HORIZONTAL                   mProgressDialog setCancelable false                   mProgressDialog show                                         private ResultReceiver mReceiver   new ResultReceiver new Handler               Override         protected void onReceiveResult int resultCode  Bundle resultData                super onReceiveResult resultCode  resultData               switch  resultCode                    case Groundy STATUS PROGRESS                      mProgressDialog setProgress resultData getInt Groundy KEY PROGRESS                        break                  case Groundy STATUS FINISHED                      Toast makeText DownloadExample this  R string file downloaded  Toast LENGTH LONG                       mProgressDialog dismiss                        break                  case Groundy STATUS ERROR                      Toast makeText DownloadExample this  resultData getString Groundy KEY ERROR   Toast LENGTH LONG  show                        mProgressDialog dismiss                        break                                     A GroundyTask implementation used by Groundy to download the file and show the progress   public class DownloadTask extends GroundyTask           public static final String PARAM URL    com groundy sample param url         Override     protected boolean doInBackground             try               String url   getParameters   getString PARAM URL               File dest   new File getContext   getFilesDir    new File url  getName                 DownloadUtils downloadFile getContext    url  dest  DownloadUtils getDownloadListenerForTask this                return true            catch  Exception pokemon                return false                      And just add this to the manifest    lt service android name  com codeslap groundy GroundyService   gt    It couldn t be easier I think  Just grab the latest jar from Github and you are ready to go  Keep in mind that Groundy s main purpose is to make calls to external REST apis in a background service and post results to the UI with easily  If you are doing something like that in your app  it could be really useful   2 2 Use https   github com koush ion  3  Use DownloadManager class  GingerBread and newer only   GingerBread brought a new feature  DownloadManager  which allows you to download files easily and delegate the hard work of handling threads  streams  etc  to the system   First  let s see a utility method           param context used to check the device version and DownloadManager information     return true if the download manager is available     public static boolean isDownloadManagerAvailable Context context         if  Build VERSION SDK INT  gt   Build VERSION CODES GINGERBREAD            return true            return false      Method s name explains it all  Once you are sure DownloadManager is available  you can do something like this   String url    url you want to download   DownloadManager Request request   new DownloadManager Request Uri parse url    request setDescription  Some descrition    request setTitle  Some title       in order for this if to run  you must use the android 3 2 to compile your app if  Build VERSION SDK INT  gt   Build VERSION CODES HONEYCOMB        request allowScanningByMediaScanner        request setNotificationVisibility DownloadManager Request VISIBILITY VISIBLE NOTIFY COMPLETED     request setDestinationInExternalPublicDir Environment DIRECTORY DOWNLOADS   name-of-the-file ext        get download service and enqueue file DownloadManager manager    DownloadManager  getSystemService Context DOWNLOAD SERVICE   manager enqueue request     Download progress will be showing in the notification bar   Final thoughts  First and second methods are just the tip of the iceberg  There are lots of things you have to keep in mind if you want your app to be robust  Here is a brief list    You must check whether user has an internet connection available Make sure you have the right permissions  INTERNET and WRITE EXTERNAL STORAGE   also ACCESS NETWORK STATE if you want to check internet availability  Make sure the directory were you are going to download files exist and has write permissions  If download is too big you may want to implement a way to resume the download if previous attempts failed  Users will be grateful if you allow them to interrupt the download    Unless you need detailed control of the download process  then consider using DownloadManager  3  because it already handles most of the items listed above   But also consider that your needs may change  For example  DownloadManager does no response caching  It will blindly download the same big file multiple times  There s no easy way to fix it after the fact  Where if you start with a basic HttpURLConnection  1  2   then all you need is to add an HttpResponseCache  So the initial effort of learning the basic  standard tools can be a good investment      This class was deprecated in API level 26  ProgressDialog is a modal   dialog  which prevents the user from interacting with the app  Instead   of using this class  you should use a progress indicator like   ProgressBar  which can be embedded in your app s UI  Alternatively    you can use a notification to inform the user of the task s progress  For more details Link

User · Answer

Do not forget to replace   sdcard     by new File   mnt sdcard       otherwise you will get a FileNotFoundException

User · Answer

I d recommend you to use my Project Netroid  It s based on Volley  I have added some features to it such as multi-events callback  file download management  This could be of some help

User · Answer

Yes the code above will work  But if you are updating your progressbar in onProgressUpdate of Asynctask  and you press back button or finish your activity AsyncTask looses its track with your UI  And when you go back to your activity  even if  download is running in background you will see no update on progressbar  So on OnResume   try to run a thread like runOnUIThread with   a timer task that updates ur progressbar with values updating from the AsyncTask running background   private void updateProgressBar        Runnable runnable   new updateProgress        background   new Thread runnable       background start       public class updateProgress implements Runnable       public void run             while Thread currentThread    background                while   Thread currentThread   isInterrupted                  try                   Thread sleep 1000                    Message msg   new Message                    progress   getProgressPercentage                            handler sendMessage msg                 catch  InterruptedException e                    Thread currentThread   interrupt                  catch  Exception e                       private Handler handler   new Handler         Override     public void handleMessage Message msg            progress setProgress msg what              Don t forget to Destroy the thread when ur activity is not visible   private void destroyRunningThreads         if  background    null            background interrupt            background null

User · Answer

While I was starting to learn android development  I had learnt that ProgressDialog is the way to go  There is the setProgress method of ProgressDialog which can be invoked to update the progress level as the file gets downloaded   The best I have seen in many apps is that they customize this progress dialog s attributes to give a better look and feel to the progress dialog than the stock version  Good to keeping the user engaged with some animation of like frog  elephant or cute cats puppies  Any animation with in the progress dialog attracts users and they don t feel like being kept waiting for long

User · Answer

Permissions     lt uses-permission android name  android permission INTERNET    gt     lt uses-permission     android name  android permission WRITE EXTERNAL STORAGE    gt    Using HttpURLConnection  import java io File  import java io FileOutputStream  import java io IOException  import java io InputStream  import java net HttpURLConnection  import java net MalformedURLException  import java net URL   import android app Activity  import android app Dialog  import android os Bundle  import android os Environment  import android view View  import android view Window  import android view View OnClickListener  import android widget Button  import android widget ProgressBar  import android widget TextView  import android widget Toast   public class DownloadFileUseHttpURLConnection extends Activity    ProgressBar pb  Dialog dialog  int downloadedSize   0  int totalSize   0  TextView cur val  String dwnload file path      http   coderzheaven com sample folder sample file png    Override public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout main        Button b    Button  findViewById R id b1       b setOnClickListener new OnClickListener              Override         public void onClick View v                 showProgress dwnload file path                    new Thread new Runnable                         public void run                              downloadFile                                               start                         void downloadFile         try           URL url   new URL dwnload file path           HttpURLConnection urlConnection    HttpURLConnection      url openConnection             urlConnection setRequestMethod  GET            urlConnection setDoOutput true              connect         urlConnection connect               set the path where we want to save the file                    File SDCardRoot   Environment getExternalStorageDirectory               create a new file  to save the downloaded file          File file   new File SDCardRoot  downloaded file png             FileOutputStream fileOutput   new FileOutputStream file              Stream used for reading the data from the internet         InputStream inputStream   urlConnection getInputStream               this is the total size of the file which we are downloading         totalSize   urlConnection getContentLength             runOnUiThread new Runnable                 public void run                     pb setMax totalSize                                                       create a buffer            byte   buffer   new byte 1024           int bufferLength   0           while    bufferLength   inputStream read buffer    gt  0                 fileOutput write buffer  0  bufferLength               downloadedSize    bufferLength                 update the progressbar                runOnUiThread new Runnable                     public void run                         pb setProgress downloadedSize                       float per     float downloadedSize totalSize                             100                      cur val setText  Downloaded     downloadedSize                           KB       totalSize    KB       int per                                                                 close the output stream when complete            fileOutput close            runOnUiThread new Runnable                 public void run                        pb dismiss       if you want close it                                             catch  final MalformedURLException e            showError  Error   MalformedURLException     e                   e printStackTrace          catch  final IOException e            showError  Error   IOException     e                     e printStackTrace              catch  final Exception e            showError  Error   Please check your internet connection       e                   void showError final String err       runOnUiThread new Runnable             public void run                 Toast makeText DownloadFileDemo1 this  err          Toast LENGTH LONG  show                         void showProgress String file path       dialog   new Dialog DownloadFileDemo1 this       dialog requestWindowFeature Window FEATURE NO TITLE       dialog setContentView R layout myprogressdialog       dialog setTitle  Download Progress         TextView text    TextView  dialog findViewById R id tv1       text setText  Downloading file from         file path       cur val    TextView  dialog findViewById R id cur pg tv       cur val setText  Starting download           dialog show          pb    ProgressBar dialog findViewById R id progress bar        pb setProgress 0               pb setProgressDrawable        getResources   getDrawable R drawable green progress

User · Answer

I am adding another answer for other solution I am using now because Android Query is so big and unmaintained to stay healthy  So i moved to this https   github com amitshekhariitbhu Fast-Android-Networking       AndroidNetworking download url dirPath fileName  build          setDownloadProgressListener new DownloadProgressListener             public void onProgress long bytesDownloaded  long totalBytes                bar setMax  int  totalBytes               bar setProgress  int  bytesDownloaded                    startDownload new DownloadListener             public void onDownloadComplete                                        public void onError ANError error

[java] Download a file with Android, and showing the progress in a ProgressDialog

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