final Button btnd = (Button)findViewById(R.id.button1);
		btnd.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				
				Animation anim=AnimationUtils.loadAnimation(Mabhas1.this, R.anim.anima);
                btnd.startAnimation(anim);
				 mProgressDialog = new ProgressDialog(Mabhas1.this); 
	                mProgressDialog.setMessage("در حاف دالفند...");
	                mProgressDialog.setIndeterminate(true);
	                mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
	                mProgressDialog.setCancelable(true);

	       
	                final DownloadTask downloadTask = new DownloadTask(Mabhas1.this); 
	                downloadTask.execute("http://bayanbox.ir/id/6955356415739458249?download"); 
	               
	                mProgressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
	                    @Override
	                    public void onCancel(DialogInterface dialog) {
	                        downloadTask.cancel(true);
	                    }
	                });
	                
	        }
	        class DownloadTask extends AsyncTask<String, Integer, String> {

	            private Context context;

	            public DownloadTask(Context context) {
	                this.context = context;
	            }

	            @Override
	            protected String doInBackground(String... sUrl) {
	                
	                PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
	                PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
	                     getClass().getName());
	                wl.acquire();

	                try {
	                    InputStream input = null;
	                    OutputStream output = null;
	                    HttpURLConnection connection = null;
	                    try {
	                        URL url = new URL(sUrl[0]);
	                        connection = (HttpURLConnection) url.openConnection();
	                        connection.connect();

	                        if (connection.getResponseCode() != HttpURLConnection.HTTP_OK)
	                             return "Server returned HTTP " + connection.getResponseCode()
	                                 + " " + connection.getResponseMessage();

	                        int fileLength = connection.getContentLength();
	                        input = connection.getInputStream();
	                        output = new FileOutputStream("/storage/sdcard0/TanhaMasir/tanha1.mp3");  //   /sdcard/file_name.extension

	                        byte data[] = new byte[4096];
	                        long total = 0;
	                        int count;
	                        while ((count = input.read(data)) != -1) {
	                    
	                            if (isCancelled())
	                                return null;
	                            total += count;
	                          
	                            if (fileLength > 0) 
	                                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();
	                    }
	                } finally {
	                    wl.release();
	                }
	                return null;
	            }
	           
	            @Override
	            protected void onPreExecute() {
	                super.onPreExecute();
	                mProgressDialog.show();
	            }

	            @Override
	            protected void onProgressUpdate(Integer... progress) {
	                super.onProgressUpdate(progress);
	               
	                mProgressDialog.setIndeterminate(false);
	                mProgressDialog.setMax(100);
	                mProgressDialog.setProgress(progress[0]);
	            }

	            @Override
	            protected void onPostExecute(String result) {
	                mProgressDialog.dismiss();
	                if (result != null)
	                    Toast.makeText(context,"خظا در دالفند: "+result, Toast.LENGTH_LONG).show();
	                else
	                    Toast.makeText(context,"دالفند شد", Toast.LENGTH_SHORT).show();
	            }
	           
	        }
	
			
		});