How to show the status of the progress bar in percent when loading json data?

Question

I upload a line and a photo. Now I want to show a progress bar when loading data with a percentage, but the percentage is shown very quickly up to 100 percent and takes longer to load and finally comes to the post post method.

protected class upload_images extends AsyncTask<String, Integer, String> { ProgressDialog progressDialog; @Override protected void onPreExecute() { super.onPreExecute(); // showDialog(progress_bar_type); progressDialog = new ProgressDialog(Accept_Report.this); progressDialog.setCancelable(false); // dialog.setCanceledOnTouchOutside(false); progressDialog.setIndeterminate(false); // progressDialog.setMax(100); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); // progressDialog.setProgress(0); progressDialog.setMax(100); // progressDialog.setMessage("Loading ..."); progressDialog.show(); // ProgressBar progressBar = (ProgressBar)findViewById(R.id.progressBar2); } @Override protected String doInBackground(String... params) { URL url; HttpURLConnection connection = null; String http=Util.URL+"reports/media/create"; try { url = new URL(http); connection = (HttpURLConnection) url.openConnection(); connection.setDoInput(true); connection.setRequestMethod("POST"); /* connection.setConnectTimeout(50000); connection.setReadTimeout(50000);*/ connection.setRequestProperty("Content-Type", "application/json"); connection.setRequestProperty("Content-Language", "en-US"); String encoded = Base64.encodeToString(("app" + ":" + "sFif4au7wet8gpsT0boK1oM2Yud6M1").getBytes("UTF-8"), Base64.NO_WRAP); connection.setRequestProperty("Authorization", "Basic " + encoded); connection.setUseCaches(false); connection.setDoOutput(true); connection.connect(); jsonArray = new JSONArray(); right = send_right.toString().replaceAll("\\[", "").replaceAll("\\]", ""); if((right!=null)&&(right!="")) { JSONObject pnObj = new JSONObject(); pnObj.put("comments", right_cm); pnObj.put("section", right_sec); pnObj.put("pictures", right); jsonArray.put(pnObj); } // return totalSize; JSONObject jsonParam = new JSONObject(); jsonParam.put("media", jsonArray); //Send request int count = 0; OutputStream wr = connection.getOutputStream(); InputStream inputStream = null; byte[] payload = jsonParam.toString().getBytes("UTF-8"); int totalSze = payload.length; Log.e("Total size ", "" + totalSze); int bytesTransferred = 0; int chunkSize = (2*totalSze)/100; boolean last_loop = false; // publishProgress(0); while (bytesTransferred < totalSze) { Log.e("bytes transferred", "" + bytesTransferred); int nextChunkSize = totalSze - bytesTransferred; Log.e("nextchunck",""+nextChunkSize); //int writer_size = wr.toString().getBytes("UTF-8").length; Log.e("chunk size", "" + chunkSize); if (nextChunkSize > chunkSize) { nextChunkSize = chunkSize; } wr.write(payload, bytesTransferred, nextChunkSize); bytesTransferred += nextChunkSize; Log.e("byte",""+wr.toString().getBytes("UTF-8").length); Log.e("progress-transferred", "" + bytesTransferred +" total "+totalSze); double cal = (( (double)bytesTransferred / (double) totalSze) * 100); double rounded = (double) Math.round(cal * 100.0) / 100.0; Log.e("progress",""+(int)rounded); publishProgress((int)rounded); wr.flush(); wr.close(); }catch(Exception e){ Log.d("Exception", e.toString()); } }*/ Log.e("While loop exit", ""); /* wr.flush (); wr.close();*/ }catch (OutOfMemoryError e) { e.printStackTrace(); } //Get Response StringBuilder sb = new StringBuilder(); HttpResultimage =connection.getResponseCode(); Log.e("res",""+HttpResultimage); if(HttpResultimage==204) { BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream(),"utf-8")); String line = null; while ((line = br.readLine()) != null) { sb.append(line + "\n"); } br.close(); System.out.println("" + sb.toString()); }else{ } } catch (Exception e) { e.printStackTrace(); return null; } finally { if(connection != null) { connection.disconnect(); } } return null; } @Override protected void onProgressUpdate(Integer... values){ super.onProgressUpdate(values); // Log.e("dfsf",""+values[0]); progressDialog.setProgress(values[0]); // progressDialog.setProgress(values[0]); } @Override protected void onPostExecute(String result) { if (HttpResultimage==204) { progressDialog.dismiss(); } } } 

Answer 1

Check out this tutorial - http://www.androidhive.info/2014/12/android-uploading-camera-image-video-to-server-with-progress-bar/

 private class UploadFileToServer extends AsyncTask<Void, Integer, String> { @Override protected void onPreExecute() { // setting progress bar to zero progressBar.setProgress(0); super.onPreExecute(); } @Override protected void onProgressUpdate(Integer... progress) { // Making progress bar visible progressBar.setVisibility(View.VISIBLE); // updating progress bar value progressBar.setProgress(progress[0]); // updating percentage value txtPercentage.setText(String.valueOf(progress[0]) + "%"); } @Override protected String doInBackground(Void... params) { return uploadFile(); } @SuppressWarnings("deprecation") private String uploadFile() { String responseString = null; HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost(Config.FILE_UPLOAD_URL); try { AndroidMultiPartEntity entity = new AndroidMultiPartEntity( new ProgressListener() { @Override public void transferred(long num) { publishProgress((int) ((num / (float) totalSize) * 100)); } }); File sourceFile = new File(filePath); // Adding file data to http body entity.addPart("image", new FileBody(sourceFile)); // Extra parameters if you want to pass to server entity.addPart("website", new StringBody("www.androidhive.info")); entity.addPart("email", new StringBody(" [e-mail] ")); totalSize = entity.getContentLength(); httppost.setEntity(entity); // Making server call HttpResponse response = httpclient.execute(httppost); HttpEntity r_entity = response.getEntity(); int statusCode = response.getStatusLine().getStatusCode(); if (statusCode == 200) { // Server response responseString = EntityUtils.toString(r_entity); } else { responseString = "Error occurred! Http Status Code: " + statusCode; } } catch (ClientProtocolException e) { responseString = e.toString(); } catch (IOException e) { responseString = e.toString(); } return responseString; } @Override protected void onPostExecute(String result) { Log.e(TAG, "Response from server: " + result); // showing the server response in an alert dialog showAlert(result); super.onPostExecute(result); } } 

Answer 2

Take a look at gist , there you can find the full workflow

First you need to create a custom RequestBody with an interface that will update your progress bar.

 import com.squareup.okhttp.MediaType; import com.squareup.okhttp.RequestBody; import com.squareup.okhttp.internal.Util; import java.io.File; import java.io.IOException; import okio.BufferedSink; import okio.Okio; import okio.Source; public class ProgressRequestBody extends RequestBody { private static final int SEGMENT_SIZE = 2048; // okio.Segment.SIZE private final File file; private final ProgressListener listener; private final String contentType; public ProgressRequestBody(File file, String contentType, ProgressListener listener) { this.file = file; this.contentType = contentType; this.listener = listener; } @Override public long contentLength() { return file.length(); } @Override public MediaType contentType() { return MediaType.parse(contentType); } @Override public void writeTo(BufferedSink sink) throws IOException { Source source = null; try { source = Okio.source(file); long total = 0; long read; while ((read = source.read(sink.buffer(), SEGMENT_SIZE)) != -1) { total += read; sink.flush(); this.listener.transferred(total); } } finally { Util.closeQuietly(source); } } public interface ProgressListener { void transferred(long num); } } 

you can copy this class as

Now in your activity or fragment, we implement the ProgressListener from the ProgressRequestBody class and call the following methods

  public void uploadWithProgrss(File file) { RequestBody requestBody = new MultipartBuilder() //build multipart request .type(MultipartBuilder.FORM) //name= KEY for your param //filename = VALUE of the param - in our case filename //attach the custom ProgressRequestBody in form of (File file, String type, Interface ProgressRequestBody.ProgressListener) //Set type depending on your content type if video set it to "video/mp4" or "image/jpeg" if image .addPart(Headers.of("Content-Disposition", "form-data; name=\"digital_product[attachment]\"; filename=\"" + file.getName() + "\""), new ProgressRequestBody(file, type2, this)) //attach the rest of Request body parameters if any .addPart( Headers.of("Content-Disposition", "form-data; name=\"digital_product[price]\""), RequestBody.create(MediaType.parse("text/plain"), etPrice.getText().toString())) .addPart( Headers.of("Content-Disposition", "form-data; name=\"digital_product[title]\""), RequestBody.create(MediaType.parse("text/plain"), etCaption.getText().toString())) .addPart( Headers.of("Content-Disposition", "form-data; name=\"digital_product[description]\""), RequestBody.create(MediaType.parse("text/plain"), etCaption.getText().toString())) .build(); //Build your request Request request = new Request.Builder() //your url .url(BuildConfig.API_URL + "api/v1/users/me/digital_products") //request header if any .addHeader("Authorization", "Bearer " + app.getAccessToken()) //type of the request, i this case post request with request body .post(requestBody) .build(); client.setReadTimeout(1, TimeUnit.MINUTES); client.setConnectTimeout(1, TimeUnit.MINUTES); client.setWriteTimeout(1, TimeUnit.MINUTES); final Call call = client.newCall(request); call.enqueue(new com.squareup.okhttp.Callback() { @Override public void onFailure(Request request, IOException e) { } @Override public void onResponse(com.squareup.okhttp.Response response) throws IOException { if (response.isSuccessful()) { //Handle success } else { call.cancel(); //handle error } } }); } @Override public void transferred(final long num) { //progress bar had to be updated from the UI thread new Handler(activity.getMainLooper()).post(new Runnable() { @Override public void run() { //just chacking if fragment is added if (isAdded()) { //Updating progress bar progressBar.setProgress((int) ((num / (float) file.length()) * 100)); } } }); } 

Answer 3

 protected class upload_images extends AsyncTask<String, Integer, String> { ProgressDialog progressDialog; @Override protected void onPreExecute() { super.onPreExecute(); // showDialog(progress_bar_type); progressDialog = new ProgressDialog(Accept_Report.this); progressDialog.setCancelable(false); // dialog.setCanceledOnTouchOutside(false); progressDialog.setIndeterminate(false); // progressDialog.setMax(100); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); // progressDialog.setProgress(0); progressDialog.setMax(100); // progressDialog.setMessage("Loading ..."); progressDialog.show(); // ProgressBar progressBar = (ProgressBar)findViewById(R.id.progressBar2); } @Override protected String doInBackground(String... params) { URL url; HttpURLConnection connection = null; String http = Util.URL + "reports/media/create"; try { url = new URL(http); connection = (HttpURLConnection) url.openConnection(); . . . connection.connect(); ... // you are doing this // what is jsonParam ? //byte[] payload = jsonParam.toString().getBytes("UTF-8"); // how you gonna get content lenght from it? int count = 0; OutputStream wr = connection.getOutputStream(); InputStream inputStream = null; byte[] payload = jsonParam.toString().getBytes("UTF-8"); int totalSze = payload.length; Log.e("Total size ", "" + totalSze); int bytesTransferred = 0; int chunkSize = (2 * totalSze) / 100; boolean last_loop = false; // publishProgress(0); ... // Do like this example // getting file length int lenghtOfFile = connection.getContentLength(); // input stream to read file - with 8k buffer InputStream input = new BufferedInputStream(url.openStream(), 8192); // Output stream to write file OutputStream output = new FileOutputStream("/sdcard/downloadedfile.jpg"); byte data[] = new byte[1024]; long total = 0; while ((count = input.read(data)) != -1) { total += count; // publishing the progress.... // After this onProgressUpdate will be called publishProgress((int) ((total * 100) / lenghtOfFile)); // writing data to file output.write(data, 0, count); } } catch (Exception e) { } return null; } @Override protected void onProgressUpdate(Integer... values) { super.onProgressUpdate(values); // Log.e("dfsf",""+values[0]); progressDialog.setProgress(values[0]); // progressDialog.setProgress(values[0]); } @Override protected void onPostExecute(String result) { if (HttpResultimage == 204) { progressDialog.dismiss(); } } } 

Answer 4

http://samir-mangroliya.blogspot.in/p/android-asynctask-example.html

Please open the above link, you will find the best answer.

Answer 5

Before upgrading, do a cleanup inside the while loop:

 while (bytesTransferred < totalSze) { ... wr.flush(); publishProgress((int)rounded); ... }