Question

我正在搜索互联网，但我没有解决我的问题。

我有五个TextView的ListView。 TextView中的一个在某些情况下是彩色的。除非我的ListView未被过滤，否则一切正常。在过滤列表视图后，textview mojView_holder.tekst_wart中的颜色更改（在getView中切换）无法正常工作并保持默认状态。

也许有些人可以帮我找到解决方案，请...

这是我的适配器代码的片段：

public class wiersz_listy_zamowien extends BaseAdapter implements Filterable {

ArrayList<Zamowienie> zamowienia;
CustomFilter filter;
ArrayList<Zamowienie> filterList;

private Context ctx;

public wiersz_listy_zamowien(Context ctx, ArrayList<Zamowienie> zamowienia) {
    this.ctx = ctx;
    this.zamowienia = zamowienia;
    this.filterList = zamowienia;
}

@Override
public int getCount() {
    return zamowienia.size();
}

@Override
public Object getItem(int position) {
    return zamowienia.get(position);
}


@Override
public long getItemId(int position) {
    return zamowienia.indexOf(getItem(position));
}

private class ViewHolderPattern {
    TextView tekst_nr;
    TextView tekst_naz;
    TextView tekst_wart;
    TextView tekst_data;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    ViewHolderPattern mojView_holder;

    if (convertView == null) {
        mojView_holder = new ViewHolderPattern();
        LayoutInflater inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.wiersz_listy_zamowien, parent, false);

        mojView_holder.tekst_nr = (TextView) convertView.findViewById(R.id.nr_zam);
        mojView_holder.tekst_naz = (TextView) convertView.findViewById(R.id.nazwa_zam);
        mojView_holder.tekst_wart = (TextView) convertView.findViewById(R.id.wart_zam);
        mojView_holder.tekst_data = (TextView) convertView.findViewById(R.id.data_zloz_zam);

        convertView.setTag(mojView_holder);
    } else {
        mojView_holder = (ViewHolderPattern) convertView.getTag();
    }

    //Ustawienie danych
    mojView_holder.tekst_nr.setText(zamowienia.get(position).getId());

   mojView_holder.tekst_naz.setText(zamowienia.get(position).getNazwa());

    mojView_holder.tekst_data.setText(zamowienia.get(position).getData());


    mojView_holder.tekst_wart.setText(String.format("%.2f", Float.parseFloat( zamowienia.get(position).getPlatn() )) + " zł ");


    //kolory kwoty zależne od statusu płatności
    switch(zamowienia.get(position).getStatusPlatn()) {
        case "0": mojView_holder.tekst_wart.setTextColor(convertView.getContext().getResources().getColor(R.color.zamZgloszColor)); break;
        default: mojView_holder.tekst_wart.setTextColor(0xFF000000); //silver
    }

    return convertView;
}


@Override
public Filter getFilter() {
    // TODO Auto-generated method stub
    if(filter == null)
    {
        filter=new CustomFilter();
    }
    return filter;
}



//INNER CLASS
class CustomFilter extends Filter
{
    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
        // TODO Auto-generated method stub
        FilterResults results=new FilterResults();
        if(constraint != null && constraint.length()>0)
        {
            //CONSTARINT TO UPPER
            constraint=constraint.toString().toUpperCase();
            ArrayList<Zamowienie> filters=new ArrayList<Zamowienie>();
            //get specific items
            for(int i=0;i<filterList.size();i++)
            {
                if(filterList.get(i).getNazwa().toUpperCase().contains(constraint))
                {
                    Zamowienie p=new Zamowienie(filterList.get(i).getId(), filterList.get(i).getNazwa(), filterList.get(i).getPlatn(), filterList.get(i).getStatus(), filterList.get(i).getStatusPlatn(), filterList.get(i).getData());
                    filters.add(p);
                }
            }
            results.count=filters.size();
            results.values=filters;
        }else
        {
            results.count=filterList.size();
            results.values=filterList;
        }
        return results;
    }

    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
        // TODO Auto-generated method stub
        zamowienia=(ArrayList<Zamowienie>) results.values;
        notifyDataSetChanged();
    }
}

Answer 1

你可以从这段代码中获取参考，因为在过滤后你的listview项目id被改变了。所以实现了getItemId方法。

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.ImageView;
import android.widget.TextView;

import com.squareup.picasso.Picasso;

import java.util.ArrayList;

/**
 * Created by windev on 8/2/2016.
 */

public class MainAdapter extends   RecyclerView.Adapter<MainAdapter.MyViewHolder> implements Filterable {

private ArrayList<DataModel> dataSet;
public ArrayList<DataModel> orig;
Context context;
//String url="http://focusmedica.com/FMAPPS/appcatalogue/";
String url="http://192.168.1.44:81/DOMAINS/Focusmedica.com/FMAPPS/appcatalogue/";

public static class MyViewHolder extends RecyclerView.ViewHolder {

    TextView tvChapterName;
    ImageView ivChapterIcon;

    public MyViewHolder(View itemView) {
        super(itemView);
        this.tvChapterName = (TextView) itemView.findViewById(R.id.tvChapterName);
        this.ivChapterIcon = (ImageView) itemView.findViewById(R.id.ivChapterIcon);
    }
}

public MainAdapter(Context context,ArrayList<DataModel> data) {
    this.dataSet = data;
    this.context=context;
}

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_layout, parent, false);
    view.setOnClickListener(MainActivity.myOnClickListener);
    MyViewHolder myViewHolder = new MyViewHolder(view);
    return myViewHolder;
}

@Override
public long getItemId(int position) {
    int itemID;
    // orig will be null only if we haven't filtered yet:
    if (orig == null) {
        itemID = position;
    } else {
        itemID = orig.indexOf(dataSet.get(position));
    }
    return itemID;
}

@Override
public void onBindViewHolder(final MyViewHolder holder, final int listPosition) {

    TextView tvChapterName = holder.tvChapterName;
    ImageView ivChapterIcon = holder.ivChapterIcon;

    String chapterName=dataSet.get(listPosition).getChapterName();
    String iconName = chapterName.replaceAll(" ", "_");
    tvChapterName.setText(chapterName);
    Picasso.with(context).load(url+iconName+".png").into(ivChapterIcon);
    //ivChapterIcon.setImageResource(R.drawable.caticon);
}

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

public Filter getFilter() {
    return new Filter() {

        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            final FilterResults oReturn = new FilterResults();
            final ArrayList<DataModel> results = new ArrayList<DataModel>();
            if (orig == null)
                orig = dataSet;
            if (constraint != null) {
                if (orig != null && orig.size() > 0) {
                    for (final DataModel g : orig) {
                        if (g.getChapterName().toLowerCase().contains(constraint.toString().toLowerCase())||
                                g.getChapterName().toUpperCase().contains(constraint.toString().toUpperCase()))
                            results.add(g);
                    }
                }
                oReturn.values = results;
            }
            return oReturn;
        }

        @SuppressWarnings("unchecked")
        @Override
        protected void publishResults(CharSequence constraint,
                                      FilterResults results) {
            dataSet = (ArrayList<DataModel>) results.values;
            notifyDataSetChanged();
        }
    };
  }
}

ListView过滤器后的TextView颜色错误

1 个答案: