title: change progress music when clicked on seekbar in android
body: <p>hello all developer!</p>
  
  <p>(this code is mediaplayer with seekbar)</p>
  
  <p>the following code work properly but I want when clicked on the seekbar change progress music for example defalt musicplayer android</p>
  
  <p>what can i do?</p>
  
  <p>what add to my code?</p>
  
  <pre><code>public class DoaMatn1 extends Activity implements OnClickListener {
      MediaPlayer mp;
      ImageButton btndowndoa;
      ImageButton btnplaydoa;
      SeekBar seek_bar;
      Handler seekHandler = new Handler();
      private ProgressDialog pDialog;
      public static final int progress_bar_type = 0;
      private static String file_url = "http://upir.ir/files92be/9e6cbb43de76.mp3";
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.doamatn);
  
          mp = MediaPlayer.create(this,Uri.fromFile(audioFile));
          btnplaydoa = (ImageButton) findViewById(R.id.btnplaydoa);
          btnplaydoa.setOnClickListener(this);
          btndowndoa = (ImageButton) findViewById(R.id.btndowndoa);
          btndowndoa.setOnClickListener(this);        
          getInit();
          seekUpdation();
      }
  
      Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
      File sdcard = Environment.getExternalStorageDirectory();
      File audioFile = new File(sdcard.getPath() + "/EBKH/basem-tavasol.mp3");
  
      public void getInit() {
          if(audioFile.exists())
          {
              seek_bar = (SeekBar) findViewById(R.id.sbdoa);
              seek_bar.setMax(mp.getDuration());
          }
      }
  
      @Override
      public void onClick(View v) {
          switch(v.getId())
          {
          case R.id.btnplaydoa :
              if(audioFile.exists())
              {
  
                      if(mp!=null)
                      {
                         if(mp.isPlaying())
                         {
                            mp.pause();
                            btnplaydoa.setImageResource(R.drawable.play);
                         }   
                         else
                         {
                           mp.start();
                            btnplaydoa.setImageResource(R.drawable.pause);
                         }
                      }
                  }
  
              break;
  
          case R.id.btndowndoa :
  
              if(!new File(Environment.getExternalStorageDirectory().toString() + "/EBKH/basem-tavasol.mp3").exists())          
                   new DownloadFileFromURL().execute(file_url);
  
  
             break;   
          }
      }
  
      Runnable run = new Runnable() {
  
          @Override
          public void run() {
              seekUpdation();
          }
      };
  
      public void seekUpdation() {
          if(audioFile.exists())
          {
              seek_bar.setProgress(mp.getCurrentPosition());
              seekHandler.postDelayed(run, 1000);
  
          }
      }
  
  
      @Override
      public void onBackPressed() {
          if( mp != null &amp;&amp; mp.isPlaying() ) {
              mp.stop();   
          }
          super.onBackPressed();
      }
  
      @Override
      protected Dialog onCreateDialog(int id) {
          switch (id) {
          case progress_bar_type:
              pDialog = new ProgressDialog(this);
              pDialog.setMessage("در حال دانلود،لطفا صبور باشید...");
              pDialog.setIndeterminate(false);
              pDialog.setMax(100);
              pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
              pDialog.setCancelable(true);
              pDialog.show();
              return pDialog;
          default:
              return null;
          }
      }
      class DownloadFileFromURL extends AsyncTask&lt;String, String, String&gt; {
  
          /**
          * Before starting background thread
          * Show Progress Bar Dialog
          * */
          @Override
          protected void onPreExecute() {
              super.onPreExecute();
              showDialog(progress_bar_type);
          }
  
          /**
          * Downloading file in background thread
          * */
          @Override
          protected String doInBackground(String... f_url) {
              int count;
              try {
                  URL url = new URL(f_url[0]);
                  URLConnection conection = url.openConnection();
                  conection.connect();
                  // getting file length
                  int lenghtOfFile = conection.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/EBKH/basem-tavasol.mp3");
  
                  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);
                  }
  
                  // flushing output
                  output.flush();
  
                  // closing streams
                  output.close();
                  input.close();
  
              } catch (Exception e) {
                  Log.e("Error: ", e.getMessage());
              }
  
              return null;
          }
  
          /**
          * 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);
          }
  
      }
  }
  </code></pre>