Display progress bar until download is complete - Android

Question

I am using the following code for downloading the video from the internet:

class DownloadFile1 extends AsyncTask<String, Integer, String> {

    public String videoToDownload;
    public String fileName;

    @Override
    protected String doInBackground(String... params) {
        int count;

        try {
            mp4load(videoToDownload);
        } catch (Exception e) {
            // TODO: handle exception
        }

        return null;
    }

    public void mp4load(String urling) {
        try {
            System.out.println("Downloading");
            URL url = new URL(urling);
            HttpURLConnection con = (HttpURLConnection) url.openConnection();
            con.setRequestMethod("GET");
            //c.setDoOutput(true);
            con.connect();

            // String downloadsPath = Environment.getExternalStoragePublicDirectory();
            File SDCardRoot = Environment.getExternalStorageDirectory();

            File outputFile = new File(SDCardRoot, fileName);

            if (!outputFile.exists()) {
                outputFile.createNewFile();
            }

            FileOutputStream fos = new FileOutputStream(outputFile);

            int status = con.getResponseCode();

            InputStream is = con.getInputStream();

            byte[] buffer = new byte[1024];
            int len1 = 0;
            while ((len1 = is.read(buffer)) != -1) {
                fos.write(buffer, 0, len1);
            }
            fos.close();
            is.close();
            System.out.println("Downloaded");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

I want to add progress bar until the video gets downloaded.The progress bar should be displayed from the start of the download to the end of the download in any format (i.e) it can be a circular progress bar etc.How to do this?

I have a code to add progress bar in async task.Whether the following code is correct?

                        @Override
                        protected void onPostExecute(Void result) {
                            bar.dismiss();
                            super.onPostExecute(result);
                        }
                        @Override
                        protected void onPreExecute() {
                            bar = new ProgressDialog(activity);
                            bar.setMessage("Processing...");
                            bar.setIndeterminate(true);
                            super.onPreExecute();
                        }

refer this link : https://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog?rq=1&utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa — Ali, Jun 01 '18 at 12:28

Koustuv Ganguly · Accepted Answer · 2018-06-01T12:47:20.627

1

Change your code like below :

class DownloadFile1 extends AsyncTask<String, Integer, String> {
    ProgressDialog bar;
    public String videoToDownload;
    public String fileName;
    private Context mContext;

    public DownloadFile1(Context context)
     {
      mContext=context;  
     }
    @Override
    protected void onPreExecute()
    {
       super.onPreExecute();
       bar = new ProgressDialog(mContext);
       bar.setMessage("Processing...");
       bar.setIndeterminate(true);
    }

    @Override
    protected String doInBackground(String... params) {
        int count;

        try {
            mp4load(videoToDownload);
        } catch (Exception e) {
            // TODO: handle exception
        }

        return null;
    }

    @Override
    protected String onPostExecute()
    {
      super.onPostExecute(result);
      bar.dismiss();
    }

    public void mp4load(String urling) {
        try {
            System.out.println("Downloading");
            URL url = new URL(urling);
            HttpURLConnection con = (HttpURLConnection) url.openConnection();
            con.setRequestMethod("GET");
            //c.setDoOutput(true);
            con.connect();

            // String downloadsPath = Environment.getExternalStoragePublicDirectory();
            File SDCardRoot = Environment.getExternalStorageDirectory();

            File outputFile = new File(SDCardRoot, fileName);

            if (!outputFile.exists()) {
                outputFile.createNewFile();
            }

            FileOutputStream fos = new FileOutputStream(outputFile);

            int status = con.getResponseCode();

            InputStream is = con.getInputStream();

            byte[] buffer = new byte[1024];
            int len1 = 0;
            while ((len1 = is.read(buffer)) != -1) {
                fos.write(buffer, 0, len1);
            }
            fos.close();
            is.close();
            System.out.println("Downloaded");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

And change the calling like

DownloadFile1 downloadFile1 = new DownloadFile1(mContext);

OR

DownloadFile1 downloadFile1 = new DownloadFile1(MainActivity.this);

Then

downloadFile1.videoToDownload = video_url;
downloadFile1.fileName = video_url;
downloadFile1.execute();

edited Jun 01 '18 at 12:47

answered Jun 01 '18 at 12:25

Koustuv Ganguly

897
7
21

what exactly did you change, and what impact do those changes have? – Stultuske Jun 01 '18 at 12:27
I changed to show which methods need to be overridden for achieving that and what code/strategy need to be applied. – Koustuv Ganguly Jun 01 '18 at 12:28
@KoustuvGanguly that could have been done without copy-pasting 50 lines of unchanged code... – Jaroslaw Pawlak Jun 01 '18 at 12:29
@KoustuvGanguly I had to run a diff on this code to realise that all you have done was overriding methods `void onPreExecute()` and `String onPostExecuty()` with comments in their bodies. – Jaroslaw Pawlak Jun 01 '18 at 12:31
@Override protected String onPostExecute() { //here make the progress bar invisible }I get error in this here – Nikeshh Vijayabaskaran Jun 01 '18 at 12:34
bar = new ProgressDialog(activity);I am getting error here – Nikeshh Vijayabaskaran Jun 01 '18 at 12:39
activity changed into red colour – Nikeshh Vijayabaskaran Jun 01 '18 at 12:39
create this async task as an inner class in your activity,and use your activity context there in place of activity. Or else pass the activity context to this class and use that – Koustuv Ganguly Jun 01 '18 at 12:40
DownloadFile1 downloadFile1 = new DownloadFile1(); downloadFile1.videoToDownload = video_url; downloadFile1.fileName = video_url; downloadFile1.execute();This is the code from the main class – Nikeshh Vijayabaskaran Jun 01 '18 at 12:43
@Override protected void onPostExecute(String result) { super.onPostExecute(result); bar.dismiss(); }Check this one.Only this code works – Nikeshh Vijayabaskaran Jun 01 '18 at 12:55

score 0 · Answer 2 · answered Jun 01 '18 at 12:26

0

make Progress dialog like below code.. make two method like below for show and hide.

    private ProgressDialog progressDialog; // it create local level of class.
        progressDialog=new ProgressDialog(MainActivity.this); // this line define into onCreateView method.
    private void showProgress(){
    progressDialog.setMessage("Loading");
    progressDialog.show();
}
private void closeProgress(){
    progressDialog.dismiss();
}

when start dowload before called showProgress() method end of download completed then show closeProgress().

answered Jun 01 '18 at 12:26

How to do this in async task? – Nikeshh Vijayabaskaran Jun 01 '18 at 12:29
async task has one method onPostExecute this method inside hide progress bar and bind other data and beform async taks start then called showprogress method – Jun 01 '18 at 12:36

score 0 · Answer 3 · answered Jun 01 '18 at 12:30

 /**
     * Showing Dialog
     * */
    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {
        case progress_bar_type: // we set this to 0
            pDialog = new ProgressDialog(this);
            pDialog.setMessage("Downloading file. Please wait...");
            pDialog.setIndeterminate(false);
            pDialog.setMax(100);
            pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
            pDialog.setCancelable(true);
            pDialog.show();
            return pDialog;
        default:
            return null;
        }

Download Class

class DownloadFile1 extends AsyncTask<String, Integer, String> {

    public String videoToDownload;
    public String fileName;

    @Override 
    protected String doInBackground(String... params) {
        int count;

        try { 
            mp4load(videoToDownload);
        } catch (Exception e) {
            // TODO: handle exception 
        } 

        return null; 
    } 

    public void mp4load(String urling) {
        try { 
            System.out.println("Downloading");
            URL url = new URL(urling);
            HttpURLConnection con = (HttpURLConnection) url.openConnection();
            con.setRequestMethod("GET");
            //c.setDoOutput(true); 
            con.connect();

            // String downloadsPath = Environment.getExternalStoragePublicDirectory(); 
            File SDCardRoot = Environment.getExternalStorageDirectory();

            File outputFile = new File(SDCardRoot, fileName);

            if (!outputFile.exists()) {
                outputFile.createNewFile();
            } 

            FileOutputStream fos = new FileOutputStream(outputFile);

            int status = con.getResponseCode();

            InputStream is = con.getInputStream();

            byte[] buffer = new byte[1024];
            int len1 = 0;
            while ((len1 = is.read(buffer)) != -1) {
                fos.write(buffer, 0, len1);
            } 
            fos.close();
            is.close();
            System.out.println("Downloaded");
        } catch (IOException e) {
            e.printStackTrace();
        } 
    }

Progress Update

/**
         * Updating progress bar
         * */
        protected void onProgressUpdate(String... progress) {
            // setting progress percentage
            pDialog.setProgress(Integer.parseInt(progress[0]));
       }



/**
         * After completing background task
         * Dismiss the progress dialog
         * **/
        @Override
        protected void onPostExecute(String file_url) {
            // dismiss the dialog after the file was downloaded
            dismissDialog(progress_bar_type);


        }


}

score 0 · Answer 4 · answered Jun 01 '18 at 13:23

Here is the best solution for your question,

AndroidNetworking.download(url,dirPath,fileName)
                 .setTag("downloadTest")
                 .setPriority(Priority.MEDIUM)
                 .build()
                 .setDownloadProgressListener(new DownloadProgressListener() {
                    @Override
                    public void onProgress(long bytesDownloaded, long totalBytes) {
                      // do anything with progress  
                    }
                 })
                 .startDownload(new DownloadListener() {
                    @Override
                    public void onDownloadComplete() {
                      // do anything after completion
                    }
                    @Override
                    public void onError(ANError error) {
                      // handle error    
                    }
                });

you can find this FastNetworking library from below link,

https://github.com/amitshekhariitbhu/Fast-Android-Networking

Display progress bar until download is complete - Android

4 Answers4