当我使用recycleview
通知我的notifyDataSetChange()
时,它会自动滚动到顶部。
我为多窗格目的制作此适配器。
该应用仅适用于平板电脑。
所以请给我解决方案。??
这是我的recycleview适配器。
public class PickersListAdapter extends RecyclerView.Adapter<PickersListAdapter.DataObjectHolder>
{
private Context context;
private ArrayList<PickersModel> pickersModelArrayList;
private ItemsListFragment fragment;
public PickersListAdapter(Context context, ArrayList<PickersModel> pickersModelArrayList, ItemsListFragment itemsListFragment)
{
this.context = context;
this.pickersModelArrayList = pickersModelArrayList;
fragment = itemsListFragment;
}
@Override
public PickersListAdapter.DataObjectHolder onCreateViewHolder(ViewGroup parent, final int viewType)
{
View view = LayoutInflater.from(context).inflate(R.layout.inflate_list_pickers, parent, false);
DataObjectHolder dataObjectHolder = new DataObjectHolder(view);
return dataObjectHolder;
}
@Override
public void onBindViewHolder(final PickersListAdapter.DataObjectHolder holder, final int position)
{
holder.myBackground.setSelected(pickersModelArrayList.get(position).isClicked());
holder.checkBox.setChecked(pickersModelArrayList.get(position).isChecked());
holder.txtItemName.setText(pickersModelArrayList.get(position).getItemName());
holder.txtitemQuantity.setText(pickersModelArrayList.get(position).getQuantity());
Log.e("image url...", pickersModelArrayList.get(position).getItemIcon());
Glide.with(context).load(pickersModelArrayList.get(position).getItemIcon()).placeholder(R.drawable.ic_item_icon).into(holder.imageView);
holder.myBackground.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
for (int i = 0; i < pickersModelArrayList.size(); i++)
{
pickersModelArrayList.get(i).setClicked(pickersModelArrayList.get(position).getItemName().equals(pickersModelArrayList.get(i).getItemName()));
}
notifyDataSetChanged();
}
});
}
@Override
public int getItemCount()
{
return pickersModelArrayList.size();
}
public class DataObjectHolder extends RecyclerView.ViewHolder
{
private CheckBox checkBox;
private ImageView imageView;
private TextView txtItemName, txtitemQuantity;
private LinearLayout myBackground;
public DataObjectHolder(View itemView)
{
super(itemView);
myBackground = (LinearLayout) itemView.findViewById(R.id.myBackground);
checkBox = (CheckBox) itemView.findViewById(R.id.checkBoxPickersItems);
imageView = (ImageView) itemView.findViewById(R.id.imgItemIconPickerItems);
txtItemName = (TextView) itemView.findViewById(R.id.txtItemNamePickerItems);
txtitemQuantity = (TextView) itemView.findViewById(R.id.txtItemQuantityPickerItems);
}
}
}
答案 0 :(得分:0)
使用setTag()
,getTag()
,然后使用不同的功能进行通知。
尝试这样的事情:
holder.myBackground.setTag(position);
holder.myBackground.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
if (null != v.getTag()) {
int position = (int) v.getTag();
for (int i = 0; i < pickersModelArrayList.size(); i++) {
pickersModelArrayList.get(i).setClicked(pickersModelArrayList.get(position).getItemName().equals(pickersModelArrayList.get(i).getItemName()));
}
notifyItemChanged(position);
}
}
});