有人可以解释出什么问题。
我有一个回收站网格视图，其中每个项目都包含倒数计时器，并且该视图在倒数时间完成后会发生变化。
但是当我确实上下左右滚动时，问题出现了，列表中的其他项目更改了我的项目，如果再次滚动，则再次更改了项目。
这是我的适配器。
public class TableTransactionRecyclerView extends RecyclerView.Adapter<TableTransactionRecyclerView.ViewHolder> {
private ArrayList<TableInfo> tableList;
private OnItemClickListener listener;
private static Context context;
private static SharedPreferences preferences;
private static List<ViewHolder> lstHolders;
public Runnable updateRemainingTimeRunnable = new Runnable() {
@Override
public void run() {
synchronized (lstHolders) {
for (ViewHolder holder : lstHolders) {
holder.updateTimeRemaining();
}
}
}
};
public TableTransactionRecyclerView(Context context, ArrayList<TableInfo> tableList, OnItemClickListener listener) {
this.tableList = tableList;
this.listener = listener;
this.context = context;
preferences = context.getSharedPreferences(CommonConsts.MY_PREFERENCES, Context.MODE_PRIVATE);
lstHolders = new ArrayList<>();
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
ViewHolder vh;
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.table_transaction_row_layout, parent, false);
vh = new ViewHolder(itemView);
synchronized (lstHolders) {
lstHolders.add(vh);
}
return vh;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.bind(tableList, position, listener);
}
@Override
public int getItemCount() {
return tableList.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
private TextView textView;
public ImageButton popupMenuBtn;
private ProgressBar showLoadingImage;
private ImageView successTick;
private ImageView tableIcon;
private LinearLayout processingLayout;
private View lineView;
private LatoTextView transactionAmountTextView;
private LatoTextView timerCountTextView;
private ArrayList<TableInfo> tableList;
private int position;
public ViewHolder(View itemView) {
super(itemView);
textView = (TextView) itemView.findViewById(R.id.table_id_text_view);
popupMenuBtn = (ImageButton) itemView.findViewById(R.id.pop_menu_btn);
showLoadingImage = (ProgressBar) itemView.findViewById(R.id.show_loading_image);
successTick = (ImageView) itemView.findViewById(R.id.success_image_view);
lineView = itemView.findViewById(R.id.view_id);
tableIcon = (ImageView) itemView.findViewById(R.id.table_icon);
processingLayout = (LinearLayout) itemView.findViewById(R.id.processing_layout);
transactionAmountTextView = (LatoTextView) itemView.findViewById(R.id.transaction_amount_text_view);
timerCountTextView = (LatoTextView) itemView.findViewById(R.id.timer_count_down_id);
}
public void bind(final ArrayList<TableInfo> tableList, final int position, final OnItemClickListener listener) {
TableInfo item = tableList.get(position);
this.tableList = tableList;
this.position = position;
textView.setText(item.getTableNumber());
if (item.getIsProcessing()) {
showLoadingImage.setVisibility(View.VISIBLE);
successTick.setVisibility(View.GONE);
tableIcon.setVisibility(View.GONE);
processingLayout.setVisibility(View.VISIBLE);
transactionAmountTextView.setText(Utils.setFormattedText(String.valueOf(item.getTransactionAmt())));
synchronized (lstHolders) {
updateTimeRemaining();
}
} else {
showLoadingImage.setVisibility(View.GONE);
tableIcon.setVisibility(View.VISIBLE);
processingLayout.setVisibility(View.GONE);
}
setLayout(tableList, position, item.getIsProcessing(), item.isLastTransactionSuccess());
}
public void setLayout(final ArrayList<TableInfo> tableList, final int position, boolean isTransaction, boolean isSuccess) {
final TableInfo item = tableList.get(position);
if(isTransaction){
item.setHandler(null);
item.setUIChangeCompletedSuccess(true);
showLoadingImage.setVisibility(View.VISIBLE);
tableIcon.setVisibility(View.GONE);
processingLayout.setVisibility(View.VISIBLE);
transactionAmountTextView.setText(Utils.setFormattedText(String.valueOf(item.getTransactionAmt())));
lineView.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.txn_view_drawable));
}else{
showLoadingImage.setVisibility(View.GONE);
tableIcon.setVisibility(View.VISIBLE);
processingLayout.setVisibility(View.GONE);
if(item.isUIChangeCompletedSuccess()) {
item.setUIChangeCompletedSuccess(false);
if (isSuccess) {
successTick.setVisibility(View.VISIBLE);
lstHolders.get(position).lineView.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.txn_success_view_drawable));
Handler handler;
if (item.getHandler() == null) {
handler = new Handler();
item.setHandler(handler);
handler.postDelayed(new Runnable() {
@Override
public void run() {
lstHolders.get(position).lineView.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.txn_view_drawable));
successTick.setVisibility(View.GONE);
item.setHandler(null);
}
}, 25000);
}
} else {
successTick.setVisibility(View.GONE);
lstHolders.get(0).lineView.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.txn_unsuccess_view_drawable));
Handler handler;
if (item.getHandler() == null) {
handler = new Handler();
item.setHandler(handler);
handler.postDelayed(new Runnable() {
@Override
public void run() {
lstHolders.get(position).lineView.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.txn_view_drawable));
successTick.setVisibility(View.GONE);
item.setHandler(null);
}
}, 25000);
}
}
}
}
}
public void updateTimeRemaining() {
timerCountTextView.setText(preferences.getString(tableList.get(position).getTableId(), ""));
}
}
}
而且我已经设置了这样的适配器：
mAdapter = new TableTransactionRecyclerView(this, tableList, this);
RecyclerView.LayoutManager mLayoutManager = new GridLayoutManager(getApplicationContext(), 4, GridLayoutManager.VERTICAL, false);
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setHasFixedSize(true);
recyclerView.setAdapter(mAdapter);
我还在下面的链接中查看了该问题，但该问题未能解决我的问题。
尝试覆盖以下内容：
@Override
public int getItemViewType(int position) {
return position;
}