Java 在RecyclerView中搜索项目时图像视图的位置发生更改
我有一个Java 在RecyclerView中搜索项目时图像视图的位置发生更改,java,android,android-recyclerview,android-adapter,Java,Android,Android Recyclerview,Android Adapter,我有一个RecyclerView，其中每个项目都有一个ImageView，以sendmail图标的形式显示。最初，ImageView是可见的，但一旦我单击它，我就使用setVisibility（View.go）将其隐藏，并更新适配器 现在，当我单击sendmail图标时，我立即使用reportitems.get（position）.setStatus（“emailsent”）将图标隐藏在该位置。现在，如果在search操作之前，第二个项目的ImageView可见，而第一个项目不可见，那么在搜索之
RecyclerViewImageViewsendmailImageViewsetVisibility（View.go）适配器
现在，当我单击sendmail
图标时，我立即使用reportitems.get（position）.setStatus（“emailsent”）将图标隐藏在该位置。现在，如果在search
操作之前，第二个项目的ImageView
可见，而第一个项目不可见，那么在搜索之后，如果第二个项目是唯一相关的项目，那么ImageView
不会显示在第一个位置。我使用的是动态搜索，输入字符后，适配器立即刷新并显示更新的RecyclerView。如何解决此问题
搜索后，即使SQ 322应该有sendmail
图标，它也不会显示出来
活动代码
mAdapter.setOnItemClickListener(new ReportAdapter.OnItemClickListener() {
public void onSendEmailClick(int position){
flightNumber=reportitems.get(position).getFlightNumber();
departureDate=reportitems.get(position).getDepartureDate();
FlightClosureStatus flightClosureStatus=new FlightClosureStatus(flightNumber,departureDate,"emailsent");
flightViewModel.updateFlightClosureStatus(flightClosureStatus);
reportitems.get(position).setStatus("emailsent");
mAdapter.notifyDataSetChanged();
}
}
public class ReportAdapter extends RecyclerView.Adapter<ReportAdapter.ReportViewHolder> {
private ArrayList<ReportItem> reportlist;
private OnItemClickListener mListener;
private Context mContext;
public ReportAdapter(ArrayList<ReportItem> reportlist, Context context) {
this.reportlist = reportlist;
this.mContext = context;
}
public interface OnItemClickListener {
void onSendEmailClick(int position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
mListener = listener;
}
public static class ReportViewHolder extends RecyclerView.ViewHolder {
public TextView departureDate;
public TextView flightNumber;
public ImageView emailView;
public ReportViewHolder(@NonNull View itemView, OnItemClickListener listener, Context context) {
super(itemView);
departureDate = itemView.findViewById(R.id.departureDaterecyclerview);
flightNumber = itemView.findViewById(R.id.flightnumberrecyclerview);
emailView = itemView.findViewById(R.id.sendemailIcon);
emailView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(listener != null) {
int position = getAdapterPosition();
if(position != RecyclerView.NO_POSITION) {
listener.onSendEmailClick(position);
}
}
}
});
}
}
@NonNull
@Override
public ReportViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.report_listing_item, parent, false);
ReportViewHolder rvh= new ReportViewHolder(v,mListener,mContext);
return rvh;
}
@SuppressLint("ResourceAsColor")
@Override
public void onBindViewHolder(@NonNull ReportViewHolder holder, int position) {
ReportItem currentItem = reportlist.get(position);
//here i am setting the visibility of the imageview to gone
if(currentItem.getStatus().contentEquals("emailsent")){
holder.emailView.setVisibility(View.GONE);
}
holder.flightNumber.setText(currentItem.getFlightNumber());
holder.departureDate.setText((currentItem.getDepartureDate()));
}
public List<ReportItem> getList() {
return reportlist;
}
}
适配器代码
mAdapter.setOnItemClickListener(new ReportAdapter.OnItemClickListener() {
public void onSendEmailClick(int position){
flightNumber=reportitems.get(position).getFlightNumber();
departureDate=reportitems.get(position).getDepartureDate();
FlightClosureStatus flightClosureStatus=new FlightClosureStatus(flightNumber,departureDate,"emailsent");
flightViewModel.updateFlightClosureStatus(flightClosureStatus);
reportitems.get(position).setStatus("emailsent");
mAdapter.notifyDataSetChanged();
}
}
public class ReportAdapter extends RecyclerView.Adapter<ReportAdapter.ReportViewHolder> {
private ArrayList<ReportItem> reportlist;
private OnItemClickListener mListener;
private Context mContext;
public ReportAdapter(ArrayList<ReportItem> reportlist, Context context) {
this.reportlist = reportlist;
this.mContext = context;
}
public interface OnItemClickListener {
void onSendEmailClick(int position);
}
public void setOnItemClickListener(OnItemClickListener listener) {
mListener = listener;
}
public static class ReportViewHolder extends RecyclerView.ViewHolder {
public TextView departureDate;
public TextView flightNumber;
public ImageView emailView;
public ReportViewHolder(@NonNull View itemView, OnItemClickListener listener, Context context) {
super(itemView);
departureDate = itemView.findViewById(R.id.departureDaterecyclerview);
flightNumber = itemView.findViewById(R.id.flightnumberrecyclerview);
emailView = itemView.findViewById(R.id.sendemailIcon);
emailView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(listener != null) {
int position = getAdapterPosition();
if(position != RecyclerView.NO_POSITION) {
listener.onSendEmailClick(position);
}
}
}
});
}
}
@NonNull
@Override
public ReportViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.report_listing_item, parent, false);
ReportViewHolder rvh= new ReportViewHolder(v,mListener,mContext);
return rvh;
}
@SuppressLint("ResourceAsColor")
@Override
public void onBindViewHolder(@NonNull ReportViewHolder holder, int position) {
ReportItem currentItem = reportlist.get(position);
//here i am setting the visibility of the imageview to gone
if(currentItem.getStatus().contentEquals("emailsent")){
holder.emailView.setVisibility(View.GONE);
}
holder.flightNumber.setText(currentItem.getFlightNumber());
holder.departureDate.setText((currentItem.getDepartureDate()));
}
public List<ReportItem> getList() {
return reportlist;
}
}
公共类ReportAdapter扩展了RecyclerView.Adapter{
私有ArrayList报告列表；
私人监听者；
私有上下文；
公共报告适配器（ArrayList报告列表，上下文）{
this.reportlist=reportlist；
this.mContext=上下文；
}
公共接口侦听器{
在SendeMailClick上无效（内部位置）；
}
公共void setOnItemClickListener（OnItemClickListener侦听器）{
mListener=监听器；
}
公共静态类ReportViewHolder扩展了RecyclerView.ViewHolder{
公共文本视图发布日期；
公共文本视图航班号；
公共图像视图emailView；
public ReportViewHolder（@NonNull View itemView，OnItemClickListener侦听器，上下文）{
超级（项目视图）；
departureDate=itemView.findViewById（R.id.departureDaterecyclerview）；
flightNumber=itemView.findViewById（R.id.flightNumber-RecyclerView）；
emailView=itemView.findViewById（R.id.sendemailIcon）；
emailView.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
if（侦听器！=null）{
int position=getAdapterPosition（）；
如果（位置！=RecyclerView.无位置）{
listener.onSendEmailClick（位置）；
}
}
}
});
}
}
@非空
@凌驾
public ReportViewHolder onCreateViewHolder（@NonNull ViewGroup父级，int-viewType）{
视图v=LayoutInflater.from（parent.getContext（））.flate（R.layout.report\u listing\u item，parent，false）；
ReportViewHolder rvh=新的ReportViewHolder（v、mListener、mContext）；
返回rvh；
}
@SuppressLint（“资源色”）
@凌驾
公共无效onBindViewHolder（@NonNull ReportViewHolder holder，int位置）{
ReportItem currentItem=reportlist.get（位置）；
//在这里，我将imageview的可见性设置为gone
if（currentItem.getStatus（）.contentEquals（“emailsent”））{
holder.emailView.setVisibility（View.GONE）；
}
holder.flightNumber.setText（currentItem.getFlightNumber（））；
holder.departureDate.setText（（currentItem.getDepartureDate（））；
}
公共列表getList（）{
返回报告列表；
}
}
将您的onBindViewHolder
替换为以下内容，基本上回收商会在可用时使用池中的项目，并且一旦项目可见性消失 @SuppressLint("ResourceAsColor")
@Override
public void onBindViewHolder(@NonNull ReportViewHolder holder, int position) {
ReportItem currentItem = reportlist.get(position);
//here i am setting the visibility of the imageview to gone
if(currentItem.getStatus().contentEquals("emailsent")){
holder.emailView.setVisibility(View.GONE);
}else{
holder.emailView.setVisibility(View.VISIBLE);
}
holder.flightNumber.setText(currentItem.getFlightNumber());
holder.departureDate.setText((currentItem.getDepartureDate()));
}
当我在RecyclerView中搜索一个项目时，ImageView的位置会随着搜索而改变，这在搜索中是永远不会发生的。仅当您更改适配器中的项目时。请重新格式化。@blackapps Reformed
当我在RecyclerView中搜索一个项目时，我观察到各个项目的ImageView被重新排列