删除并插入新项目后，Android RecyclerView CountDownTimer问题 Download

public class LafzAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>  {

private Activity activity;
public List<Lafz> Events;
public Typeface tempfont,tempfont2;
private  MyClickListener myClickListener;
private final List<RecyclerView.ViewHolder> lstHolders=new ArrayList<>();

private Handler mHandler = new Handler();
private Runnable updateRemainingTimeRunnable = new Runnable() {
    @Override
    public void run() {
        synchronized (lstHolders) {
            for (RecyclerView.ViewHolder holder : lstHolders) {
                ((UserViewHolder) holder).updateTimeRemaining();
            }
        }
    }
};

public LafzAdapter(List<Lafz> Events, Activity activity, Typeface ttemp) {
    this.Events = Events;
    this.activity = activity;
    this.tempfont = ttemp;
}

public LafzAdapter(final List<Lafz> Events, Activity activity, Typeface ttemp, Typeface ttemp2) {
    this.Events = Events;
    this.activity = activity;
    this.tempfont = ttemp;
    this.tempfont2=ttemp2;
    //lstHolders = new ArrayList<>();
    startUpdateTimer();
}

@Override
protected void finalize() throws Throwable {
    super.finalize();
    mHandler.removeCallbacks(updateRemainingTimeRunnable);
}


private void startUpdateTimer() {
    Timer tmr = new Timer();
    tmr.schedule(new TimerTask() {
        @Override
        public void run() {
            mHandler.post(updateRemainingTimeRunnable);
        }
    }, 1000, 1000);
}

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.adapterlayoutlafz, parent, false);
    UserViewHolder dataObjectHolder = new UserViewHolder(view);
    return dataObjectHolder;
}

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
    ((UserViewHolder) holder).setdata(Events.get(position));

        synchronized (lstHolders) {
            lstHolders.add(holder);
        }
        ((UserViewHolder) holder).updateTimeRemaining();
}


 class UserViewHolder extends RecyclerView.ViewHolder
        implements View
        .OnClickListener{
    Lafz lafztemp;
    public TextView titlelafz;
    public TextView timerlafz;

    public TextView idnumber;
    public TextView idtype;
    public TextView iduser;



    public LinearLayout llcolor,llcolor2;

    CountDownTimer timer;
    CircularProgressBar circularProgressBar;



    public UserViewHolder(View view) {
        super(view);

        titlelafz=(TextView)view.findViewById(R.id.titlelafz);
        titlelafz.setTypeface(tempfont2);

        timerlafz=(TextView)view.findViewById(R.id.timerlafz);
        timerlafz.setTypeface(tempfont);


        idnumber=(TextView)view.findViewById(R.id.idnumber);
        idtype=(TextView)view.findViewById(R.id.idtype);
        iduser=(TextView)view.findViewById(R.id.iduser);

        circularProgressBar=(CircularProgressBar) view.findViewById(R.id.circularProgressBar);




        llcolor = (LinearLayout) view.findViewById(R.id.llcolor);
        llcolor2 = (LinearLayout) view.findViewById(R.id.llcolor2);


        view.setOnClickListener(this);



    }

    public void setdata(Lafz l)
    {
        lafztemp = l;
        if(lafztemp.typelafz==0)
        {
            this.idnumber.setText(String.valueOf(lafztemp.id));
            this.idtype.setText(String.valueOf(lafztemp.typelafz));
            this.iduser.setText(String.valueOf(lafztemp.iduser));
            this.titlelafz.setText(lafztemp.geram+" "+"گرم"+" "+String.format("%,d",lafztemp.mazane)+" "+"تومان");
            this.timerlafz.setText(String.valueOf(lafztemp.getTimer()/1000));
            this.llcolor2.setBackgroundColor(ContextCompat.getColor(activity,R.color.frooshred));
        }
        // خرید
        else {
            this.idnumber.setText(String.valueOf(lafztemp.id));
            this.idtype.setText(String.valueOf(lafztemp.typelafz));
            this.iduser.setText(String.valueOf(lafztemp.iduser));
            this.titlelafz.setText(lafztemp.geram+" "+"گرم"+" "+String.format("%,d", lafztemp.mazane)+" "+"تومان");
            this.timerlafz.setText(String.valueOf(lafztemp.getTimer()/1000));
            this.llcolor2.setBackgroundColor(ContextCompat.getColor(activity,R.color.kharidgreen));
        }
    }


     public void updateTimeRemaining() {

         lafztemp.timer-=1000;
         this.timerlafz.setText(String.valueOf((lafztemp.getTimer()/1000)));
         Iterator<Lafz> dataIterator = Events.iterator();
         int y=0;
         if(lafztemp.timer==0)
         {
             while (dataIterator.hasNext()) {
                 Lafz rd = dataIterator.next();
                 if (rd.equals(lafztemp)) {
                     lafztemp.timer=60000;

                     this.circularProgressBar.setProgress(60f);
                     dataIterator.remove();
                     notifyItemRemoved(y);
                     notifyDataSetChanged();
                     break;
                 }
                 y++;
             }
         }
         this.circularProgressBar.setProgress(this.circularProgressBar.getProgress()-1f);
     }


    @Override
    public void onClick(View v) {
        myClickListener.onItemClick(getAdapterPosition(), v);
    }
}

@Override
public int getItemCount() {
    return Events == null ? 0 : Events.size();
}

public void setOnItemClickListener(MyClickListener myClickListener) {
    this.myClickListener = myClickListener;
}

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

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


public interface MyClickListener {
    public void onItemClick(int position, View v);
}}

但是当从列表中删除旧项目并添加新项目时，新项目每秒下降两秒 清晰屏幕截图：请参阅以下屏幕截图以了解 第一张图片Gif：第一次Adedd项目还可以：

但是在四项过期并从列表中删除后：四项第一项每秒下降两秒，四项第一项被删除之后所有其他项的计时器都在闪烁，请参见第二Gif：

0 个答案: