我有一个奇怪的问题。我从 ListView
切换到 RecyclerView
,但我无法刷新或通知我的 ListView
中的更改。我尝试调用 Item.this.notifyDataSetChanged();
和其他刷新 View
的方法,但它不起作用。
当我滚动时(无论方向如何),RecyclerView
都会刷新。当发生变化时,如何通知我的 RecyclerView
?
代码:
@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;
}
});
}
最佳答案
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并且回收器 View 应该从头开始:调用notifyDataSetChanged()
、swapAdapter()
以及对 View /布局管理器失效请求的后续调用的多种组合导致了一个(看似)空的回收 View 。 View 甚至没有尝试重新绑定(bind) View 持有者。
似乎解决了这个 hack-ish 修复:
view.swapAdapter(sameAdapter, true);
view.scrollBy(0, 0);
事实证明,scrollBy
(即使偏移量为 0)驱动回收器 View 布局其 View 并执行挂起的 View 持有者重新绑定(bind)。
关于android - notifyDataSetChanged 不刷新 RecyclerView,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34104870/