changer la valeur TextView changer les valeurs des autres éléments dans Listview Android personnalisés

Question

J'ai un problème, en changeant des boutons pour augmenter la valeur de la TextView quantité, dans la liste changer également d'autres que je ne suis pas en interaction avec.

En espagnol: Salut, J'ai un problème lors du passage de boutons pour augmenter la valeur de la quantité TextView au sein de la liste aussi changer d'autres que je ne suis pas en interaction. comme on le voit dans l'image deabajo sur le côté gauche est le haut de la liste qui va changer le montant, mais sous le rouleau de ce changement affecte les autres éléments de la liste

As you see in the image below in the left part is the beginning of the list to which the quantity changes, but if under the scroll of that change affects other items in the list

import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 
import android.graphics.drawable.Drawable; 
import android.support.v7.widget.RecyclerView; 
import android.text.method.ScrollingMovementMethod; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.ImageButton; 
import android.widget.ImageView; 
import android.widget.ListAdapter; 
import android.widget.ScrollView; 
import android.widget.SeekBar; 
import android.widget.TextView; 
import android.widget.Toast; 

import com.loopj.android.http.AsyncHttpClient; 
import com.loopj.android.http.TextHttpResponseHandler; 
import com.squareup.picasso.Picasso; 

import org.json.JSONException; 
import org.json.JSONObject; 
import org.json.JSONArray; 
import org.json.JSONObject; 

import java.text.DecimalFormat; 
import java.util.List; 
import java.util.Locale; 

/** 
* Created by roberthdudiver on 8/2/17. 
*/ 

public class ProductosAdapter extends BaseAdapter implements ListAdapter { 
    private JSONArray jsonArray; 
    private Context context; 

    public ProductosAdapter(JSONArray jsonArray, Context con) { 

     assert jsonArray != null; 
     context=con; 
     this.jsonArray = jsonArray; 

    } 


    @Override public int getCount() { 
     if(null==jsonArray) 
      return 0; 
     else 
      return jsonArray.length(); 
    } 

    @Override public JSONObject getItem(int position) { 
     if(null==jsonArray) return null; 
     else 
      return jsonArray.optJSONObject(position); 
    } 

    @Override public long getItemId(int position) { 
     JSONObject jsonObject = getItem(position); 

     return jsonObject.optLong("id"); 
    } 

    JSONObject json_data ; 
    View ConvertView; 
    static class ViewHolder { 
     ImageView img; 
     TextView text; 
     TextView desc; 
     TextView cantidad; 
     TextView precio; 
     int posicion=1; 
     ScrollView mScrollView; 
     SeekBar seekBar; 
     float preciofl; 
     Button Botonincrementar; 
     Button Botondecrementar; 
     ImageButton Boton; 

    } 
    private static final String TAG = "CustomAdapter"; 
    ViewHolder Holder; 
    @Override public View getView(int position, View convertView, ViewGroup parent) { 
     ConvertView=convertView; 
     LayoutInflater inflater = (LayoutInflater)context.getSystemService(context.LAYOUT_INFLATER_SERVICE); 

     Log.v(TAG, "in getView for position " + position + ", convertView is " 
       + ((convertView == null) ? "null" : "being recycled")); 

     if (ConvertView == null) { 




      ConvertView = inflater.inflate(R.layout.lista_productos, parent, false); 
      Holder = new ViewHolder(); 
      //inflater.inflate(R.layout.lista_productos, null); 

      Holder.desc = (TextView) ConvertView.findViewById(R.id.titulo); 
      Holder.cantidad = (TextView) ConvertView.findViewById(R.id.txtcantidad); 
      Holder.Boton = (ImageButton) ConvertView.findViewById(R.id.botonagregar); 
      Holder.text = (TextView) ConvertView.findViewById(R.id.h1); 
      Holder.precio = (TextView) ConvertView.findViewById(R.id.precio); 
      Holder.img = (ImageView) ConvertView.findViewById(R.id.img); 
      Holder.seekBar = (SeekBar) ConvertView.findViewById(R.id.barra); 
      Holder.Botonincrementar =(Button) ConvertView.findViewById(R.id.increment); 
      Holder.Botondecrementar =(Button) ConvertView.findViewById(R.id.decrement); 

      ConvertView.setTag(Holder); 
     } 
     else { 
      Holder = (ViewHolder) ConvertView.getTag(); 
     } 

      Holder.seekBar.setMax(10); 
     Holder.Boton.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       ViewHolder es = (ViewHolder)v.getTag(); 
       ObjetoProductoPcarrito Obj = new ObjetoProductoPcarrito(); 
       Obj.nombre=es.text.getText().toString(); 
       Obj.cantidad= Float.parseFloat(es.cantidad.getText().toString()); 
       Obj.precio=es.preciofl; 
       if(Obj.cantidad>0) { 
        Utilidades.ListaActual().add(Obj); 
       } 
       TextView infocarrito= (TextView)Utilidades.ContextoPrincipalCarrito.findViewById(R.id.precio); 
       String tot=String.valueOf(Utilidades.TotalCarrito()); 
       infocarrito.setText(tot+" Bs."); 
       es.cantidad.setText("1"); 
       es.seekBar.setProgress(1); 
       es.posicion=1; 


      } 
     }); 

     JSONObject json_data1 = getItem(position); 

     Holder.Botondecrementar.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       ViewHolder es = (ViewHolder)v.getTag(); 
       int nume=Integer.parseInt(es.cantidad.getText().toString()); 

       if(nume>=2) { 
        nume--; 
        es.cantidad.setText(String.valueOf(nume)); 

       } 
      } 
     }); 
     Holder.Botonincrementar.setOnClickListener(Incrementarlistener); 
     Holder.seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { 
      @Override 
      public void onProgressChanged(SeekBar seekBar, int i, boolean b) { 

       ViewHolder es = (ViewHolder)seekBar.getTag(); 
       try { 
es.posicion=i; 
        es.cantidad.setText(Integer.toString(i)); 
       }catch (Exception e){ 

       Log.e("Error", "unexpected JSON exception", e); 

       } 
      } 

      @Override 
      public void onStartTrackingTouch(SeekBar seekBar) { 

      } 

      @Override 
      public void onStopTrackingTouch(SeekBar seekBar) { 

      } 
     }); 

     if(null!=json_data1) { 
      try { 

       String jj = json_data1.getString("id"); 

       // try parse the string to a JSON object 
       try { 

        String id = json_data1.getString("id"); 
        String description = json_data1.getString("description"); 
        String name = json_data1.getString("name"); 
        String imagen = json_data1.getString("product_images"); 
        String preciop = json_data1.getString("product_price"); 
        float litersOfPetrol = Float.parseFloat(preciop); 
        DecimalFormat df = new DecimalFormat("0.00"); 
        df.setMaximumFractionDigits(2); 


        preciop = df.format(litersOfPetrol); 


        try { 
         Holder.img.setTag("img-" + id); 
         Holder.text.setTag("text-" + id); 
         Holder.cantidad.setTag("cantidad-" + id); 
         Holder.seekBar.setTag(Holder); 
         Holder.seekBar.setProgress(Holder.posicion); 
         Holder.precio.setTag("precio-" + id); 
         Holder.Botonincrementar.setTag(Holder); 
         Holder.Botondecrementar.setTag(Holder); 
         Holder.Boton.setTag(Holder); 

        } catch (Exception e) { 
         Log.e("Error", "unexpected JSON exception", e); 
        } 

        Holder.text.setText(name); 
        Holder.desc.setText(Utilidades.LimpiarHtml(description)); 
        Holder.text.setText(name); 
        Holder.preciofl = Float.parseFloat(preciop.replace(',', '.')); 
        Holder.precio.setText(preciop + " Bs."); 
        Holder.desc.setMovementMethod(new ScrollingMovementMethod()); 

        System.out.println("Position ["+position+"]"); 

        // String imagen="http://"+ Utilidades.Url()+"/img/p/"+idimagen+"/"+idimagen+"-medium_default.jpg"; 
        // Picasso.with(convertView.getContext()).load(imagen).into(img); 
        int es = R.drawable.precarga; 


        Picasso.with(ConvertView.getContext()) 
          .load(imagen) 
          .placeholder(es) 
          .into(Holder.img); 


       } catch (JSONException e) { 
        Log.e("JSON Parser", "Error parsing data " + e.toString()); 
       } 


      } catch (JSONException e) { 

       // Log.e("MYAPP", "unexpected JSON exception", e); 
       // Do something to recover ... or kill the app. 
      } 

     } 

     return ConvertView; 
    } 



    private View.OnClickListener Incrementarlistener = new View.OnClickListener() 
    { 

     @Override 
     public void onClick(View v) { 
      ViewHolder es = (ViewHolder)v.getTag(); 



      int nume=Integer.parseInt(es.cantidad.getText().toString()); 

      if(nume<=99) { 
       nume++; 
       es.cantidad.setText(String.valueOf(nume)); 

      } 
     } 
    }; 
} 

Answer 1

je change votre classe Whit, vous résoudre le problème.

import android.content.Context; 
import android.text.method.ScrollingMovementMethod; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.Button; 
import android.widget.CheckBox; 
import android.widget.CompoundButton; 
import android.widget.ImageButton; 
import android.widget.ImageView; 
import android.widget.SeekBar; 
import android.widget.TextView; 

import com.squareup.picasso.Picasso; 

import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 

import java.text.DecimalFormat; 
import java.util.ArrayList; 

/** 
* Created by Roberth on 15/3/2017. 
*/ 

public class ProductosAdapterNew extends BaseAdapter { 
    private JSONArray jsonArray; 
    private LayoutInflater inflater; 
    private boolean[] itemSelection; 
    private int[] itemvalues; 
    private String[] itemvalues2; 
    private Context context; 

    public ProductosAdapterNew(JSONArray jsonArray, Context con) { 

     assert jsonArray != null; 
     context=con; 
     this.jsonArray = jsonArray; 

    } 



    @Override public int getCount() { 
     if(null==jsonArray) 
      return 0; 
     else { 
      int tamano=jsonArray.length(); 
      this.itemSelection = new boolean[tamano]; 
      this.itemvalues = new int[tamano]; 
      this.itemvalues2 = new String[tamano]; 
      return jsonArray.length(); 
     } 
    } 

    @Override public JSONObject getItem(int position) { 
     if(null==jsonArray) return null; 
     else { 
      return jsonArray.optJSONObject(position); 
     } 
    } 

    @Override public long getItemId(int position) { 
     JSONObject jsonObject = getItem(position); 
     return jsonObject.optLong("id"); 
    } 
    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     context = parent.getContext(); 
     LayoutInflater inflater = LayoutInflater.from(context); 

     convertView = inflater.inflate(R.layout.lista_productos, parent, false); 
     final ProductosHolder holder = new ProductosHolder(); 

     holder.seekBar = (SeekBar) convertView.findViewById(R.id.barra); 
     holder.cantidad = (TextView) convertView.findViewById(R.id.txtcantidad); 
     holder.desc = (TextView) convertView.findViewById(R.id.titulo); 

     holder.Boton = (ImageButton) convertView.findViewById(R.id.botonagregar); 
     holder.text = (TextView) convertView.findViewById(R.id.h1); 
     holder.precio = (TextView) convertView.findViewById(R.id.precio); 
     holder.img = (ImageView) convertView.findViewById(R.id.img); 

     holder.Botonincrementar =(Button) convertView.findViewById(R.id.increment); 
     holder.Botondecrementar =(Button) convertView.findViewById(R.id.decrement); 
     convertView.setTag(holder); 
     holder.Boton.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       ObjetoProductoPcarrito Obj = new ObjetoProductoPcarrito(); 
       Obj.nombre=holder.text.getText().toString(); 
       Obj.cantidad= Float.parseFloat(holder.cantidad.getText().toString()); 
       Obj.precio=holder.preciofl; 
       if(Obj.cantidad>0) { 
        Utilidades.ListaActual().add(Obj); 
       } 
       TextView infocarrito= (TextView)Utilidades.ContextoPrincipalCarrito.findViewById(R.id.precio); 
       String tot=String.valueOf(Utilidades.TotalCarrito()); 
       infocarrito.setText(tot+" Bs."); 
       holder.cantidad.setText("1"); 
       holder.seekBar.setProgress(1); 
       holder.posicion=1; 


      } 
     }); 
     holder.Botondecrementar.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       int nume=Integer.parseInt(holder.cantidad.getText().toString()); 

       if(nume>=1) { 
        nume--; 
        itemvalues[position]=nume; 
        itemvalues2[position] = String.valueOf(nume); 
        holder.cantidad.setText(itemvalues2[position]); 
        holder.seekBar.setProgress(itemvalues[position]); 
       } 
      } 
     }); 
     holder.Botonincrementar.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 


       int nume=Integer.parseInt(holder.cantidad.getText().toString()); 

       if(nume<=99) { 
        nume++; 
        itemvalues[position]=nume; 
        itemvalues2[position] = String.valueOf(nume); 
        holder.cantidad.setText(itemvalues2[position]); 
        holder.seekBar.setProgress(itemvalues[position]); 

       } 
      } 
     }); 

     holder.seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { 
      @Override 
      public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { 
       itemvalues[position] = holder.seekBar.getProgress(); 
       itemvalues2[position] = String.valueOf(holder.seekBar.getProgress()); 
       holder.cantidad.setText(itemvalues2[position]); 

       // ProductosHolder es = (ProductosHolder) seekBar.getTag(); 
      } 

      @Override 
      public void onStartTrackingTouch(SeekBar seekBar) { 

      } 

      @Override 
      public void onStopTrackingTouch(SeekBar seekBar) { 

      } 
     }); 


     try { 

      JSONObject json_data1 = getItem(position); 


      if (null != json_data1) { 
       try { 

        String jj = json_data1.getString("id"); 

        // try parse the string to a JSON object 
        try { 

         String id = json_data1.getString("id"); 
         String description = json_data1.getString("description"); 
         String name = json_data1.getString("name"); 
         String imagen = json_data1.getString("product_images"); 
         String preciop = json_data1.getString("product_price"); 
         float litersOfPetrol = Float.parseFloat(preciop); 
         DecimalFormat df = new DecimalFormat("0.00"); 
         df.setMaximumFractionDigits(2); 


         preciop = df.format(litersOfPetrol); 



        holder.seekBar.setProgress(itemvalues[position]); 
         if(itemvalues2[position]!=null) { 
          holder.cantidad.setText(String.valueOf(itemvalues2[position])); 
         } 
         else { 
          holder.cantidad.setText("1"); 

         } 
        holder.seekBar.setMax(10); 
        holder.text.setText(name); 
        holder.desc.setText(Utilidades.LimpiarHtml(description)); 
        holder.text.setText(name); 
        holder.preciofl = Float.parseFloat(preciop.replace(',', '.')); 
        holder.precio.setText(preciop + " Bs."); 
        holder.desc.setMovementMethod(new ScrollingMovementMethod()); 

        System.out.println("Position ["+position+"]"); 

        // String imagen="http://"+ Utilidades.Url()+"/img/p/"+idimagen+"/"+idimagen+"-medium_default.jpg"; 
        // Picasso.with(convertView.getContext()).load(imagen).into(img); 
        int es = R.drawable.precarga; 
        Picasso.with(convertView.getContext()) 
          .load(imagen) 
          .placeholder(es) 
          .into(holder.img); 

        } catch (JSONException e) { 
         Log.e("JSON Parser", "Error parsing data " + e.toString()); 
        } 
       } catch (Exception e) { 

       } 
      } 


      holder.seekBar.setTag(holder); 



     } catch (Exception es) { 

      // Log.e("MYAPP", "unexpected JSON exception", e); 
      // Do something to recover ... or kill the app. 
     } 

     return convertView; 
    } 

    public int getItemsLength() { 
     if(itemSelection == null) return 0; 
     return itemSelection.length; 
    } 

    public void set(int i, boolean b) { 
     itemSelection[i] = b; 
    } 
}