Recyclerview Changing Items During Scroll

Question

I have a RecyclerView. Each row has a play button, textview and Progressbar. when click on the play button have to play audio from my sdcard and have to progress Progressbar The problem is when i scroll down the recyclerview change the Progressbar in next row.means I can fit 5 items on the screen at once. When I scroll to the 6th, 6th row seekbar changes suddenly.

public class ListAdapter extends RecyclerView.Adapter {      private List<Historyitem> stethitems;     public Context mContext;     public Activity activity;     public Handler mHandler;      static MediaPlayer mPlayer;     static Timer mTimer;      public ListAdapter(Activity activity,Context mContext,List<Historyitem> stethitems) {         this.stethitems = stethitems;         this.mContext = mContext;         this.activity = activity;     }      @Override     public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {          View rootView = LayoutInflater.                 from(mContext).inflate(R.layout.stethoscopeadapteritem, null, false);         RecyclerView.LayoutParams lp = new RecyclerView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,                 ViewGroup.LayoutParams.WRAP_CONTENT);         rootView.setLayoutParams(lp);         mHandler = new Handler();         return new MyViewHolder(rootView);     }      @Override     public void onBindViewHolder(final RecyclerView.ViewHolder viewHolder, int position) {          final Historyitem dataItem = stethitems.get(position);         final MyViewHolder myViewHolder = (MyViewHolder) viewHolder;         myViewHolder.progressplay.setProgress(0);         myViewHolder.stethdatetime.setText(dataItem.getReported_Time());         myViewHolder.stethhosname.setText(dataItem.getdiv());          if(dataItem.getPatient_Attribute().replaceAll(" ","").equals("")){             myViewHolder.stethdoctorname.setText(dataItem.getunit());         } else {             myViewHolder.stethdoctorname.setText(dataItem.getPatient_Attribute());         }          myViewHolder.stethstreamplay.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View view) {                     FileDownload(dataItem.getmsg(),                             myViewHolder.progressplay);              }         });     }      @Override     public int getItemCount() {          return stethitems.size();     }      public class MyViewHolder extends RecyclerView.ViewHolder {          final CustomTextRegular stethdatetime;         final CustomTextView stethhosname;         final CustomTextBold stethdoctorname;         final ImageButton stethstreamplay;         final NumberProgressBar progressplay;          public MyViewHolder(View itemView) {             super(itemView);              stethdatetime = (CustomTextRegular)                     itemView.findViewById(R.id.stethdatetime);             stethhosname = (CustomTextView)                     itemView.findViewById(R.id.stethhosname);             stethdoctorname = (CustomTextBold)                     itemView.findViewById(R.id.stethdoctorname);             stethstreamplay = (ImageButton)                     itemView.findViewById(R.id.stethstreamplay);             progressplay= (NumberProgressBar)                     itemView.findViewById(R.id.progressplay);           }     }     public void  FileDownload(final String downloadpath,                                       final NumberProgressBar progressplay) {          new AsyncTask<NumberProgressBar, Integer, NumberProgressBar>() {             NumberProgressBar progress;             @Override             protected void onPreExecute() {                 super.onPreExecute();                 try {                     if(mPlayer!=null){                         mPlayer.stop();                     }                 }catch (Exception e){                 }                 try {                     if(mTimer != null){                         mTimer.purge();                         mTimer.cancel();                     }                 }catch (Exception e){                 }             }              @Override             protected NumberProgressBar doInBackground(NumberProgressBar... params) {                 int count;                 progress = progressplay;                 try {                      final List<NameValuePair> list = new ArrayList<NameValuePair>();                     list.add(new BasicNameValuePair("pid",id));                      URL url = new URL(Config.requestfiledownload + "?path=" +                             downloadpath);                     URLConnection connection = url.openConnection();                     connection.connect();                      int lenghtOfFile = connection.getContentLength();                     // download the file                     InputStream input = new BufferedInputStream(url.openStream());                     OutputStream output = new FileOutputStream(Environment.getExternalStorageDirectory() +                             "record.wav");                     byte data[] = new byte[1024];                     long total = 0;                     while ((count = input.read(data)) != -1) {                         total += count;                         // publishing the progress....                         publishProgress((int) (total * 100 / lenghtOfFile));                         output.write(data, 0, count);                     }                     output.flush();                     output.close();                     input.close();                 } catch (Exception e) {                  }                 return progress;             }             @Override             protected void onPostExecute(final NumberProgressBar numberProgressBar) {                 super.onPostExecute(numberProgressBar);                          try {                             StartMediaPlayer(numberProgressBar);                         } catch (Exception e){                             e.printStackTrace();                         }              }         }.execute();     }      public void StartMediaPlayer(final NumberProgressBar progressbar){         Uri playuri = Uri.parse("file:///sdcard/record.wav");         mPlayer = new MediaPlayer();         mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);         mPlayer.reset();         try {             mPlayer.setDataSource(mContext, playuri);         } catch (IllegalArgumentException e) {          } catch (SecurityException e) {          } catch (IllegalStateException e) {          } catch (Exception e) {          }         try {             mPlayer.prepare();         } catch (Exception e) {          }          mPlayer.start();         progressbar.setMax(mPlayer.getDuration());         mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {             @Override             public void onCompletion(MediaPlayer mp) {                 if(mPlayer!=null) {                     mPlayer.release();                     progressbar.setProgress(0);                 }                 if(mTimer != null){                     mTimer.purge();                     mTimer.cancel();                 }             }         });         mTimer = new Timer();         mTimer.schedule(new TimerTask() {             @Override             public void run() {                 mHandler.post(new Runnable() {                     @Override                     public void run() {                         progressbar.setProgress(mPlayer.getCurrentPosition());                     }                 });             }         },0,500);     }} 

Answer 1

Please try this

1. If you are using ListView - override the following methods.

    @Override  public int getViewTypeCount() {          return getCount();  }   @Override  public int getItemViewType(int position) {          return position;  } 

2. If you are using RecyclerView - override only getItemViewType() method.

    @Override  public int getItemViewType(int position) {          return position;  } 

Answer 2

Add setHasStableIds(true); in your adapter constructor and Override these two methods in adapter. It also worked if anyone using a RecyclerView inside a ViewPager which is also inside a NestedScrollView.

@Override public long getItemId(int position) {             return position; }  @Override public int getItemViewType(int position) {        return position; }