我有一个奇怪的问题.我从ListView切换到RecyclerView,我无法刷新或通知我的ListView中的更改.我试着调用Item.this.notifyDataSetChanged();
和其他方法刷新View但它不起作用.
而是滚动时(无论方向如何)刷新RecyclerView.如何更改时如何通知我的RecyclerView？
和其他方法刷新View但它不起作用.
而是滚动时(无论方向如何)刷新RecyclerView.如何更改时如何通知我的RecyclerView？
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;
}
});
}
解决方法
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()与多种组合对view / layout-manager失效请求的后续调用只会导致(看似)空的回收器视图.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Recycler-view进行布局,并执行挂起的视图持有者重新绑定.
