Android 应用搜索筛选器后如何获取recyclerView的正确位置

我已经实现了一个

recyclerView

，它从

REST

方法填充

JSON

数据。我还在工具栏上添加了一个

searchView

，根据

searchView

中输入的数据过滤

recyclerview

。现在我面临一个问题，在输入搜索参数后，单击

recyclerview

中的一个项目，它总是返回列表中由rest方法填充的第一个元素

Adapter.java

private Context context;
private LayoutInflater inflater;
private List<RetailerOfferPOJO> data;
private static ClickListener clickListener;

public RetailerOfferAdapter(Context context, List<RetailerOfferPOJO> data) {
    this.context = context;
    inflater = LayoutInflater.from(context);
    this.data = data;
}

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = inflater.inflate(R.layout.retailer_offer_adapter, parent, false);
    MyHolder holder = new MyHolder(view);
    return holder;
}

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
    MyHolder myHolder = (MyHolder)holder;
    RetailerOfferPOJO current = data.get(position);
    //myHolder.lblID.setText(current.getsID());
    myHolder.lblOfferName.setText(current.getsOfferName());
    myHolder.lblDescription.setText(current.getsDescription());
    myHolder.lblPrice.setText(current.getsPrice());
}

@Override
public int getItemCount() {
    return data.size();
}

/**
 * Search Filter method for RecyclerView
 * @param searchModels
 */
public void setFilter(List<RetailerOfferPOJO> searchModels) {
    data = new ArrayList<>();
    data.addAll(searchModels);
    notifyDataSetChanged();
}

public static class MyHolder extends RecyclerView.ViewHolder  implements View.OnClickListener, View.OnLongClickListener{

    TextView lblID;
    TextView lblOfferName;
    TextView lblDescription;
    TextView lblPrice;

    // create constructor to get widget reference
    public MyHolder(View itemView) {
        super(itemView);
        itemView.setOnClickListener(this);
        itemView.setOnLongClickListener(this);
        // lblID = (TextView) itemView.findViewById(R.id.lblID);
        lblOfferName = (TextView) itemView.findViewById(R.id.lblOfferName);
        lblDescription = (TextView) itemView.findViewById(R.id.lblDescription);
        lblPrice = (TextView) itemView.findViewById(R.id.lblPrice);

    }

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_main, menu);
    final MenuItem searchItem = menu.findItem(R.id.action_search);
    final SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {

        @Override
        public boolean onQueryTextSubmit(String query) {
            return false;
        }

        @Override
        public boolean onQueryTextChange(String newText) {
            final List<RetailerOfferPOJO> filteredModelList = filter(mRetailerOffers, newText);
            if (!filteredModelList.isEmpty()) {
                mAdapter.setFilter(filteredModelList);
            }

            return true;
        }

    });




/**
 * Filter method for RecyclerView
 *
 * @param models
 * @param query -> data entered by the user as search parameter
 * @return
 */
private List<RetailerOfferPOJO> filter(List<RetailerOfferPOJO> models, String query) {

    //@param query -> the data entered by user is taken and converted to lowe case
    query = query.toLowerCase();

    final List<RetailerOfferPOJO> filteredModelList = new ArrayList<>();
    for (RetailerOfferPOJO model : models) {
        // the data that is populated in the RecyclerView is converted to lower case
        //full name and designation is attached to model class so that when the user searches
        //on either of them the recycler view displays data accordingly
        final String text = model.getsOfferName().toLowerCase();
        final String text1 = model.getsDescription().toLowerCase();
        if (text.contains(query)) {
            //check if the text in the recycler view contains the data entered by the user
            // and then update the list
            filteredModelList.add(model);
            mAdapter.notifyDataSetChanged();
        } else if (text1.contains(query)) {
            filteredModelList.add(model);
        }

    }
   // mAdapter.notifyDataSetChanged();
    return filteredModelList;
}

私有上下文；
私人充气机；
私人名单数据；
私有静态ClickListener ClickListener；
public RetailerOfferadPter（上下文、列表数据）{
this.context=上下文；
充气器=充气器。从（上下文）；
这个数据=数据；
}
@凌驾
public RecyclerView.ViewHolder onCreateViewHolder（视图组父级，int-viewType）{
视图=充气机。充气（R.layout.retailer\u offer\u适配器，父项，false）；
MyHolder=新的MyHolder（视图）；
报税表持有人；
}
@凌驾
BindViewHolder上的公共无效（RecyclerView.ViewHolder，int位置）{
我的持有人我的持有人=（我的持有人）持有人；
RetailerOfferPOJO当前=data.get（位置）；
//myHolder.lblID.setText（current.getsID（））；
myHolder.lblOfferName.setText（current.getsOfferName（））；
myHolder.lblDescription.setText（current.getsDescription（））；
myHolder.lblPrice.setText（current.getsPrice（））；
}
@凌驾
public int getItemCount（）{
返回data.size（）；
}
/**
*RecyclerView的搜索筛选器方法
*@param searchModels
*/
公共void setFilter（列出搜索模型）{
数据=新的ArrayList（）；
data.addAll（searchModels）；
notifyDataSetChanged（）；
}
公共静态类MyHolder扩展了RecyclerView.ViewHolder实现了View.OnClickListener、View.OnLongClickListener{
文本视图lblID；
文本视图lblOfferName；
文本视图LBL描述；
文本视图lblPrice；
//创建构造函数以获取小部件引用
公共MyHolder（查看项目视图）{
超级（项目视图）；
setOnClickListener（这个）；
setOnLongClickListener（此）；
//lblID=（TextView）itemView.findViewById（R.id.lblID）；
lblOfferName=（TextView）itemView.findViewById（R.id.lblOfferName）；
lblDescription=（TextView）itemView.findViewById（R.id.lblDescription）；
lblPrice=（TextView）itemView.findViewById（R.id.lblPrice）；
}

MainActivity.java

private Context context;
private LayoutInflater inflater;
private List<RetailerOfferPOJO> data;
private static ClickListener clickListener;

public RetailerOfferAdapter(Context context, List<RetailerOfferPOJO> data) {
    this.context = context;
    inflater = LayoutInflater.from(context);
    this.data = data;
}

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = inflater.inflate(R.layout.retailer_offer_adapter, parent, false);
    MyHolder holder = new MyHolder(view);
    return holder;
}

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
    MyHolder myHolder = (MyHolder)holder;
    RetailerOfferPOJO current = data.get(position);
    //myHolder.lblID.setText(current.getsID());
    myHolder.lblOfferName.setText(current.getsOfferName());
    myHolder.lblDescription.setText(current.getsDescription());
    myHolder.lblPrice.setText(current.getsPrice());
}

@Override
public int getItemCount() {
    return data.size();
}

/**
 * Search Filter method for RecyclerView
 * @param searchModels
 */
public void setFilter(List<RetailerOfferPOJO> searchModels) {
    data = new ArrayList<>();
    data.addAll(searchModels);
    notifyDataSetChanged();
}

public static class MyHolder extends RecyclerView.ViewHolder  implements View.OnClickListener, View.OnLongClickListener{

    TextView lblID;
    TextView lblOfferName;
    TextView lblDescription;
    TextView lblPrice;

    // create constructor to get widget reference
    public MyHolder(View itemView) {
        super(itemView);
        itemView.setOnClickListener(this);
        itemView.setOnLongClickListener(this);
        // lblID = (TextView) itemView.findViewById(R.id.lblID);
        lblOfferName = (TextView) itemView.findViewById(R.id.lblOfferName);
        lblDescription = (TextView) itemView.findViewById(R.id.lblDescription);
        lblPrice = (TextView) itemView.findViewById(R.id.lblPrice);

    }

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_main, menu);
    final MenuItem searchItem = menu.findItem(R.id.action_search);
    final SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {

        @Override
        public boolean onQueryTextSubmit(String query) {
            return false;
        }

        @Override
        public boolean onQueryTextChange(String newText) {
            final List<RetailerOfferPOJO> filteredModelList = filter(mRetailerOffers, newText);
            if (!filteredModelList.isEmpty()) {
                mAdapter.setFilter(filteredModelList);
            }

            return true;
        }

    });




/**
 * Filter method for RecyclerView
 *
 * @param models
 * @param query -> data entered by the user as search parameter
 * @return
 */
private List<RetailerOfferPOJO> filter(List<RetailerOfferPOJO> models, String query) {

    //@param query -> the data entered by user is taken and converted to lowe case
    query = query.toLowerCase();

    final List<RetailerOfferPOJO> filteredModelList = new ArrayList<>();
    for (RetailerOfferPOJO model : models) {
        // the data that is populated in the RecyclerView is converted to lower case
        //full name and designation is attached to model class so that when the user searches
        //on either of them the recycler view displays data accordingly
        final String text = model.getsOfferName().toLowerCase();
        final String text1 = model.getsDescription().toLowerCase();
        if (text.contains(query)) {
            //check if the text in the recycler view contains the data entered by the user
            // and then update the list
            filteredModelList.add(model);
            mAdapter.notifyDataSetChanged();
        } else if (text1.contains(query)) {
            filteredModelList.add(model);
        }

    }
   // mAdapter.notifyDataSetChanged();
    return filteredModelList;
}

@覆盖
公共布尔onCreateOptions菜单（菜单）{
getMenuInflater（）.充气（右菜单菜单菜单主菜单）；
final MenuItem searchItem=menu.findItem（R.id.action\u search）；
最终SearchView SearchView=（SearchView）MenuItemCompat.getActionView（searchItem）；
searchView.setOnQueryTextListener（新的searchView.OnQueryTextListener（）{
@凌驾
公共布尔值onQueryTextSubmit（字符串查询）{
返回false；
}
@凌驾
公共布尔onQueryTextChange（字符串newText）{
最终列表filteredModelList=过滤器（mRetailerOffers，newText）；
如果（！filteredModelList.isEmpty（））{
设置过滤器（filteredModelList）；
}
返回true；
}
});
/**
*RecyclerView的过滤方法
*
*@param模型
*@param query->用户作为搜索参数输入的数据
*@返回
*/
私有列表筛选器（列表模型、字符串查询）{
//@参数查询->获取用户输入的数据并转换为小写
query=query.toLowerCase（）；
final List filteredModelList=new ArrayList（）；
适用于（RetailerOfferPOJO型号：型号）{
//在RecyclerView中填充的数据将转换为小写
//全名和名称附加到模型类，以便用户搜索时
//在它们中的任何一个上，回收器视图都会相应地显示数据
最终字符串text=model.getsOfferName（）.toLowerCase（）；
最后一个字符串text1=model.getsDescription（）.toLowerCase（）；
if（text.contains（查询））{
//检查“回收器”视图中的文本是否包含用户输入的数据
//然后更新列表
filteredModelList.add（model）；
mAdapter.notifyDataSetChanged（）；
}else if（text1.contains（查询））{
filteredModelList.add（model）；
}
}
//mAdapter.notifyDataSetChanged（）；
返回filteredModelList；
}

使用泛型适配器，为FilterGit调用

getFilter（）

方法可能是因为，您的单击侦听器仍然使用旧列表，而不是新的“filteredModelList”感谢Harjot SIngh Oberai提供的提示。它现在正在运行。我犯的错误是在搜索筛选器中重新初始化了my model类，结果在旧列表中完成了recyclerview clicklistener事件。感谢您的回复，但我没有尝试您的方法。将为其提供一个tryuse通用适配器，调用

getFilter（）

FilterGit的方法可能是因为，您的单击侦听器仍然使用旧列表，而不是新的“filteredModelList”感谢Harjot SIngh Oberai提供的提示。它现在正在运行。我犯的错误是在搜索筛选器中重新初始化了my model类，结果在旧列表中完成了recyclerview clicklistener事件。感谢您的回复，但我没有尝试您的方法。我将尝试一下