public class GurDown extends Fragment {
    Button btn;
    ImageView my_image;
    String url = "https://media.alienwarearena.com/media/1327-a.jpg";
    ProgressDialog pDialog;

    public static final int progress_bar_type = 0;



    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.gur_down, container, false);
    }


    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {

        super.onViewCreated(view, savedInstanceState);

        getActivity().setTitle("GurDown");



        btn = (Button) view.findViewById(R.id.button);
        my_image = (ImageView) view.findViewById(R.id.imageDisplay);

        btn.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                new DownloadFileFromURL().execute(url);
             //   new Downloader().execute(url);
            }

        });


    }

/*
     class Downloader extends AsyncTask<String,Void,Bitmap> {

         @Override
         protected void onPreExecute() {
             super.onPreExecute();

             pDialog = new ProgressDialog(getActivity());
             pDialog.setTitle("Image Downloader");
             pDialog.setMessage("Downloading. . .");
             pDialog.setIndeterminate(false);
             pDialog.show();
         }

         @Override
         protected Bitmap doInBackground(String... url) {
            String myurl = url[0];
             Bitmap bm=null;

             try {
                 InputStream is=new URL(myurl).openStream();
                 bm=BitmapFactory.decodeStream(is);

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


             return bm;
         }

         @Override
         protected void onPostExecute(Bitmap result) {
             super.onPostExecute(result);

             my_image.setImageBitmap(result);

             pDialog.dismiss();
         }
     }*/



    class DownloadFileFromURL extends AsyncTask<String, String, String> {

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            //    pDialog = ProgressDialog.show(getActivity(), "Loading...", "Please wait...", true);
            pDialog = new ProgressDialog(getActivity());
            pDialog.setMessage("Downloading file. Please wait. . .");
            pDialog.setIndeterminate(false);
            pDialog.setMax(100);
            pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
            pDialog.setCancelable(true);
            pDialog.show();

        }

        @Override
        protected String doInBackground(String... f_url) {
            int count;
            try {
                URL url = new URL(f_url[0]);
                URLConnection urlConection = url.openConnection();
                urlConection.connect();

                int lengthOfFile = urlConection.getContentLength();

                InputStream input = new BufferedInputStream(url.openStream(), 8192);

                String storageDir = Environment.getExternalStorageDirectory().getAbsolutePath();
                String fileName = "/file.jpg";
                File imageFile = new File(storageDir+fileName);
                OutputStream output = new FileOutputStream(imageFile);

                byte data[] = new byte[1024];
                long total = 0;

                while((count = input.read(data)) != -1) {
                    total += count;

                    publishProgress(""+(int)((total*100)/lengthOfFile));

                    output.write(data, 0, count);
                }

                output.flush();

                output.close();
                input.close();
            } catch (Exception e) {
                Log.e("Error: ", e.getMessage());
            }
            return null;
        }

        protected void onProgressUpdate(String... progress) {
            pDialog.setProgress(Integer.parseInt(progress[0]));
        }

        protected void onPostExecute(String file_url) {
            pDialog.dismiss();
            Toast.makeText(getActivity(),"done!", Toast.LENGTH_LONG).show();

            String imagePath = Environment.getExternalStorageDirectory() + "/file1.jpg";
            my_image.setImageDrawable(Drawable.createFromPath(imagePath));

        }
    }