notifyDataSetChanged不刷新RecyclerView

Question

我有一个奇怪的问题.我切换到RecyclerView了ListView,我无法刷新或通知我的变化ListView.我尝试调用Item.this.notifyDataSetChanged(); 和其他方法刷新,View但它不起作用.代替RecyclerView刷新时我滚动(与方向无关).如何RecyclerView更改时如何通知我？

码:

@Override
public void onBindViewHolder(Ids holder, final int position) {
    rowItemClass = (ListViewRow) rowItems.get(position);
    Log.e("swag", "OYOYOYOYOYO");
    if (Globals.isPlaying && Globals.pos == position) {

        if (pausedSamePos == true) {
            holder.pauseed_play.setVisibility(View.VISIBLE);
            holder.playing_pause.setVisibility(View.GONE);
        } else {
            holder.pauseed_play.setVisibility(View.GONE);
            holder.playing_pause.setVisibility(View.VISIBLE);
        }
        holder.song_currenttime_sb.setActive();
        holder.song_duration.setVisibility(View.INVISIBLE);
        holder.song_duration_sb.setVisibility(View.VISIBLE);
        holder.seekbar.setActive();

    } else {
        holder.seekbar.setInactive();
        holder.song_currenttime_sb.setInactive();
        holder.song_icon.setImageResource(rowItemClass.getImageId());
        holder.song_duration_sb.setVisibility(View.INVISIBLE);
        holder.song_duration.setVisibility(View.VISIBLE);
        holder.pauseed_play.setVisibility(View.GONE);
        holder.playing_pause.setVisibility(View.GONE);

    }
    sharedPreference = new SharedPreference();

    holder.song_duration.setTypeface(Globals
            .getTypefaceSecondary(context));
    holder.song_duration_sb.setTypeface(Globals
            .getTypefaceSecondary(context));
    holder.song_name.setTypeface(Globals.getTypefacePrimary(context));
    holder.song_currenttime_sb.setTypeface(Globals
            .getTypefaceSecondary(context));

    holder.song_name.setText(rowItemClass.getTitle());
    holder.song_duration.setText(rowItemClass.getDesc());

    holder.song_duration_sb.setText(rowItemClass.getDesc());
    holder.favorite.setTag(position);
    holder.song_currenttime_sb.setTag(position);
    holder.seekbar.setTag(position);
    holder.clickRegister.setTag(position);
    holder.song_icon.setTag(position);
    holder.song_name.setTag(position);
    holder.song_duration.setTag(position);
    holder.song_duration_sb.setTag(position);
    holder.more_options.setTag(position);
    // int task_id = (Integer) holder.seekbar.getTag();
    final Ids finalHolder = holder;





    holder.clickRegister.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            try {

                if ((Globals.isPlaying.booleanValue())
                        && (Globals.pos == position)) {
                    pausePlaying();

                } else {

                    Globals.stopPlaying();
                    pausedSamePos = false;
                    Globals.pos = position;
                    Globals.isPlaying = true;
                    Item.this.notifyDataSetChanged();

                    Globals.mp = MediaPlayer.create(context, Integer
                            .valueOf(Item.this.songPos[position])
                            .intValue());
                    Globals.mp.start();
                    Globals.pos = position;

                    Globals.isPlaying = Boolean.valueOf(true);
                    Item.this.notifyDataSetChanged();

                    Globals.mp
                            .setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                                @Override
                                public void onCompletion(
                                        MediaPlayer mpOnComplete) {
                                    mpOnComplete.release();

                                    Globals.isPlaying = false;
                                    pausedSamePos = false;
                                    Globals.isPlaying = Boolean
                                            .valueOf(false);
                                    finalHolder.menu_options
                                            .startAnimation(new ViewExpandAnimation(
                                                    finalHolder.menu_options));
                                    Item.this.notifyDataSetChanged();
                                }
                            });

                }
            } catch (Exception localException) {
            }

        }
    });

    holder.clickRegister
            .setOnLongClickListener(new View.OnLongClickListener() {

                @Override
                public boolean onLongClick(View v) {
                    Globals.stopPlaying();
                    Item.this.notifyDataSetChanged();
                    return true;
                }
            });




}

Answer 1

我一直在努力解决类似的问题,试图处理一个用例,其中所有适配器的内容都必须被替换,而recycleler-view应该从头开始:调用notifyDataSetChanged(),swapAdapter()后续调用视图/布局的多种组合-manager失效请求只导致(看似)空的回收者视图.该视图甚至没有尝试重新绑定视图持有者.

似乎已经解决的问题是这个hack-ish修复:

view.swapAdapter(sameAdapter, true);
view.scrollBy(0, 0);

事实证明,scrollBy(即使有0个偏移)驱动循环器视图布局其视图并执行待处理的视图持有者重新绑定.

Answer 2

我不知道为什么会这样，但notifyDataSetChanged();没有用。因此，我尝试跟踪更改的项目并手动刷新它们notifyItemChanged(int);，到目前为止它似乎有效。我仍然不确定为什么刷新整体RecyclerView不起作用。