android – 如何在RecyclerView中处理多个倒计时器？

概述我有一个Recyclerview,我需要在每一行显示一个倒计时. 这是一个类似的问题 coutndown timers in listview 它有一个很好的解决方案,但我需要与recyclerview 它有一个很好的解决方案,但我需要与recyclerview 编辑： 我尝试了什么,这是我的代码适配器 MyAdapter： public class AdapterItems extends Re 我有一个RecyclervIEw,我需要在每一行显示一个倒计时.

这是一个类似的问题
coutndown timers in listview
它有一个很好的解决方案,但我需要与recyclervIEw

它有一个很好的解决方案,但我需要与recyclervIEw

编辑：

我尝试了什么,这是我的代码适配器
MyAdapter：

public class AdapterItems extends RecyclerVIEw.Adapter<RecyclerVIEw.VIEwHolder> {private ArrayList<topCompetitions> mListItems = new ArrayList<>();private ImageLoader mImageLoader;private Context context;private Handler handler;/******************************************/String current_date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");Date d1 = null;Date d2 = null;long diff;long diffSeconds;long diffMinutes;long diffHours;long diffDays;String reachableDate = "";/******************************************/private ScheduledFuture updateFuture;public AdapterItems(Context context) {    this.context = context;    mImageLoader = AppController.getInstance().getimageLoader();}public voID setmListItems(ArrayList<topCompetitions> mListItems) {    this.mListItems = mListItems;    //update the adapter to reflect the new set of mListItems    notifyDataSetChanged();}@OverrIDepublic RecyclerVIEw.VIEwHolder onCreateVIEwHolder(VIEwGroup parent,int vIEwType) {    VIEw itemVIEw = LayoutInflater.            from(parent.getContext()).            inflate(R.layout.custom_horizontal_row,parent,false);    return new ItemHolder(itemVIEw);}@OverrIDepublic voID onBindVIEwHolder(RecyclerVIEw.VIEwHolder holder,int position) {    final topCompetitions currentItem = mListItems.get(position);    final ItemHolder itemHolder = (ItemHolder) holder;   /* start_date,name_com_ar,name_com_en,question_en,answer_ar1,answer_ar2,answer_ar3,answer_en1,answer_en2,answer_en3,right_answer;    */    itemHolder.item_ID.setText(currentItem.getPrize_ID());    itemHolder.item_description.setText(currentItem.getname_com_ar());    itemHolder.start_date.setText(currentItem.getStart_date());    itemHolder.end_date.setText(currentItem.getEnd_date());    itemHolder.name_com_ar.setText(currentItem.getname_com_ar());    itemHolder.name_com_en.setText(currentItem.getname_com_en());    itemHolder.answer_en1.setText(currentItem.getAnswer_en1());    itemHolder.answer_en2.setText(currentItem.getAnswer_en2());    itemHolder.answer_en3.setText(currentItem.getAnswer_en3());    itemHolder.answer_ar1.setText(currentItem.getAnswer_ar1());    itemHolder.answer_ar2.setText(currentItem.getAnswer_ar2());    itemHolder.answer_ar3.setText(currentItem.getAnswer_ar3());    itemHolder.right_answer.setText(currentItem.getRight_answer());    itemHolder.question_en.setText(currentItem.getQuestion_en());    itemHolder.question_ar.setText(currentItem.getQuestion_ar());    itemHolder.desc_ar.setText(currentItem.getPrize_desc_ar());    itemHolder.desc_en.setText(currentItem.getPrize_desc_en());    String urllogo = currentItem.getPrize_pic1();    loadImages(urllogo,itemHolder);    setDefferinceTimer(itemHolder,currentItem.getEnd_date());    if (updateFuture == null) {        final Handler mainHandler = new Handler(Looper.getMainLooper());        updateFuture = Executors.newSingleThreadScheduledExecutor().scheduleAtFixedrate(new Runnable() {            @OverrIDe            public voID run() {                setDefferinceTimer(itemHolder,currentItem.getEnd_date());                notifyDataSetChanged();                mainHandler.post(new Runnable() {                    @OverrIDe                    public voID run() {                        notifyDataSetChanged();                    }                });            }        },1000,TimeUnit.MILliSECONDS);    }  /*  new Handler(Looper.getMainLooper()).post(new Runnable() {        @OverrIDe        public voID run() {            new CountDownTimer(20000,1000) {                public voID onTick(long millisUntilFinished) {                    startCountDown(itemHolder,currentItem.getEnd_date() + " 00:00:00");                    notifyDataSetChanged();                }                public voID onFinish() {                    //counterTextVIEw.setText("done!");                }            }.start();        }    });       */}public voID setDefferinceTimer(final RecyclerVIEw.VIEwHolder holder,String itemEndDate){    final ItemHolder itemHolder = (ItemHolder) holder;    current_date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());   // reachableDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(itemEndDate);    try {        d1 = format.parse(current_date);        d2 = format.parse(itemEndDate+" 00:00:00");    } catch (ParseException e) {        e.printstacktrace();    }    diff = d2.getTime() - d1.getTime();    diffSeconds = diff / 1000 % 60;    diffMinutes = diff / (60 * 1000) % 60;    diffHours = diff / (60 * 60 * 1000) % 24;    diffDays = diff / (24 * 60 * 60 * 1000);    itemHolder.days_tf.setText(""+diffDays);    itemHolder.hours_tf.setText(""+diffHours);    itemHolder.minutes_tf.setText(""+diffMinutes);    itemHolder.seconds_tf.setText(""+diffSeconds);}private voID loadImages(String urlthumbnail,final RecyclerVIEw.VIEwHolder holder) {    final ItemHolder itemHolder = (ItemHolder) holder;    mImageLoader.get(urlthumbnail,new ImageLoader.ImageListener() {        @OverrIDe        public voID onResponse(ImageLoader.ImageContainer response,boolean isImmediate) {            itemHolder.item_image.setimageBitmap(response.getBitmap());            //holder.salon_gender.setimageBitmap(response.getBitmap());        }        @OverrIDe        public voID onErrorResponse(VolleyError error) {        }    });}@OverrIDepublic int getItemCount() {    return mListItems.size();}private class ItemHolder extends RecyclerVIEw.VIEwHolder {    public TextVIEw item_ID,item_description,end_date,start_date,question_ar,right_answer,desc_ar,desc_en;    public TextVIEw days_tf,hours_tf,minutes_tf,seconds_tf;    public circleimageVIEw item_image;    public ItemHolder(VIEw itemVIEw) {        super(itemVIEw);        start_date = (TextVIEw) itemVIEw.findVIEwByID(R.ID.start_date);        end_date = (TextVIEw) itemVIEw.findVIEwByID(R.ID.end_date);        name_com_ar = (TextVIEw) itemVIEw.findVIEwByID(R.ID.name_com_ar);        name_com_en = (TextVIEw) itemVIEw.findVIEwByID(R.ID.name_com_en);        question_en = (TextVIEw) itemVIEw.findVIEwByID(R.ID.question_en);        question_ar = (TextVIEw) itemVIEw.findVIEwByID(R.ID.question_ar);        desc_ar = (TextVIEw) itemVIEw.findVIEwByID(R.ID.desc_ar);        desc_en = (TextVIEw) itemVIEw.findVIEwByID(R.ID.desc_en);        answer_ar1 = (TextVIEw) itemVIEw.findVIEwByID(R.ID.answer_ar1);        answer_ar2 = (TextVIEw) itemVIEw.findVIEwByID(R.ID.answer_ar2);        answer_ar3 = (TextVIEw) itemVIEw.findVIEwByID(R.ID.answer_ar3);        answer_en1 = (TextVIEw) itemVIEw.findVIEwByID(R.ID.answer_en1);        answer_en2 = (TextVIEw) itemVIEw.findVIEwByID(R.ID.answer_en2);        answer_en3 = (TextVIEw) itemVIEw.findVIEwByID(R.ID.answer_en3);        right_answer = (TextVIEw) itemVIEw.findVIEwByID(R.ID.right_answer);        item_ID = (TextVIEw) itemVIEw.findVIEwByID(R.ID.item_ID);        item_description = (TextVIEw) itemVIEw.findVIEwByID(R.ID.item_description);        item_image = (circleimageVIEw) itemVIEw.findVIEwByID(R.ID.item_image);        days_tf = (TextVIEw) itemVIEw.findVIEwByID(R.ID.days_tf);        hours_tf = (TextVIEw) itemVIEw.findVIEwByID(R.ID.hours_tf);        minutes_tf = (TextVIEw) itemVIEw.findVIEwByID(R.ID.minutes_tf);        seconds_tf = (TextVIEw) itemVIEw.findVIEwByID(R.ID.seconds_tf);    }}

解决方法 在VIEwHolder中添加一个CountDownTimer成员.在getVIEw()中设置并启动计数器,并且不要忘记在同一VIEwHolder实例中取消任何现有的计数器.在onTick()中,您需要更新显示屏上的值,而不是启动计数器. 总结

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