CountDownTimer issue Listview Android

Question

我创建了一个带有倒计时的列表视图，第一次显示的结果很好，但当滚动列表时，它会被打乱，结果会出错。

适配器类：

public class EventsListAdapter extends BaseAdapter {
    LayoutInflater inflater;
    Activity context;
    List<MyEvents> list;
    long startTime = 0L;
    long countUp;
    String hrs = "00";
    String mins = "00";
    String secs = "00";
    private MyCustomTimer myTimer;
    public EventsListAdapter(Activity context, List<MyEvents> list) {
        this.context = context;
        inflater = context.getLayoutInflater();
        this.list = list;
    }
    public void setActivityList(List<MyEvents> LoadList) {
        list = LoadList;
    }
    public int getCount() {
        return list.size();
    }
    public Object getItem(int position) {
        return list.get(position);
    }
    public long getItemId(int position) {
        return position;
    }
    static class ViewHolder {
        TextView name;
    }
    public View getView(int position, View convertView, ViewGroup parent) {
        MyEvents eventsData = list.get(position);   
        View rowView = convertView;
        ViewHolder viewHolder;
        if (rowView == null) {
            LayoutInflater inflater = context.getLayoutInflater();
            rowView = inflater.inflate(R.layout.likes_inflate, null);
            viewHolder = new ViewHolder();
            viewHolder.name = (TextView) rowView.findViewById(R.id.lblName);
            if (eventsData.isStarted()){
                myTimer = new MyCustomTimer(viewHolder.name);
                myTimer.setTimer(eventsData.start_date);
            }
            rowView.setTag(viewHolder);
        }else{
            viewHolder = (ViewHolder) rowView.getTag();
        }
        return rowView;
    }
}

CountDownTimer类：

class MyCustomTimer{
        TextView tv;
        public MyCustomTimer(TextView tv) {
            this.tv = tv;
        }
        void setTimer(final long time) {
            new CountDownTimer(time, 1000) {
                public void onTick(long millisUntilFinished) {
                    //Set formatted date to your TextView                   
                    tv.setText(Utilities.getDurationBreakdown(millisUntilFinished));
                }
                public void onFinish() {
                    tv.setText("Done!");
                }
            }.start();
        }
    }

这个代码有什么问题吗？请提出建议。

Answer 1

当您滚动列表视图时，会调用getView（）。因此计数器再次启动。将计数器维护在类似变量的哈希映射中。在getView（）中检查这个变量，然后根据它设置计数器的值。

Answer 2

你可以在这里查看我的答案https://stackoverflow.com/a/53543180/6711554.我用过RecyclerView，但你们也可以用ListView。