показать или скрыть виджет в ListView Когда флажок установлен или незарегистрированный Android

Question

Вот мой ArrayAdapter класс,

public class HAAR extends ArrayAdapter<HAM> { 

Context context; 
ArrayList<HAM> selectedhospital; 
ViewHolder viewHolder = null; 

public HAAR(Context context, int resourceId, 
             ArrayList<HAM> selectedhospital) { 
    super(context, resourceId, selectedhospital); 
    this.context = context; 
    this.selectedhospital = new ArrayList<HAM>(); 
    this.selectedhospital.addAll(selectedhospital); 
} 

// View lookup cache 
private static class ViewHolder { 
    TextView name; 
    TextView home; 
    CheckBox chk_hospitallist; 
    RadioButton rbt_primarylocation; 

} 


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

    final ArrayList<String> hospitalid = new ArrayList<>(); 

    LayoutInflater mInflater = (LayoutInflater) context 
      .getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 

    if (convertView == null) { 
     // If there's no view to re-use, inflate a brand new view for row 
     convertView = mInflater.inflate(R.layout.ha_list_item_name, null); 
     viewHolder = new ViewHolder(); 

    viewHolder.name = (TextView) convertView.findViewById(R.id.txt_ha_name); 
     viewHolder.home = (TextView) convertView.findViewById(R.id.txt_ha_town); 
     viewHolder.chk_hospitallist = (CheckBox) convertView.findViewById(R.id.chk_box_ha_list); 

     final View finalConvertView = convertView; 
     viewHolder.chk_hospitallist.setOnClickListener(new View.OnClickListener() 
     { 
      public void onClick(View v) 
      { 
       CheckBox cb = (CheckBox) v; 
       viewHolder.rbt_primarylocation = (RadioButton) finalConvertView.findViewById(R.id.rbtn_pl); 
       HAM _state = (HAM) cb.getTag(); 

       if(cb.isChecked()) 
       { 
        _state.setSelected(cb.isChecked()); 
        hospitalid.add(_state.getId().toString()); 
        viewHolder.rbt_primarylocation.setVisibility(View.VISIBLE); 

        Toast.makeText(
          v.getContext(), 
          "Clicked on If: " + _state.getId().toString() + " is " 
            + cb.isChecked(), Toast.LENGTH_LONG).show(); 
       } 
       else 
       { 
        _state.setSelected(false); 
        hospitalid.remove(_state.getId().toString()); 
        viewHolder.rbt_primarylocation.setVisibility(View.INVISIBLE); 

        Toast.makeText(
          v.getContext(), 
          "Clicked on Else: " + _state.getId().toString() + " is " 
            + cb.isChecked(), Toast.LENGTH_LONG).show(); 
       } 
      } 
     }); 

     // Cache the viewHolder object inside the fresh view 
     convertView.setTag(viewHolder); 

    } else { 
     // View is being recycled, retrieve the viewHolder object from tag 
     viewHolder = (ViewHolder) convertView.getTag(); 
    } 

    HAM state = selectedhospital.get(position); 

    viewHolder.name.setText(state.getName()); 
    viewHolder.home.setText(state.getAddress1()+"\r\n"+ state.getCity()+", "+state.getState()+" "+state.getZip()); 

    viewHolder.chk_hospitallist.setChecked(state.isSelected()); 

    viewHolder.chk_hospitallist.setTag(state); 



    return convertView; 
} 
} 

В этом коде я пытаюсь скрыть и показать RadioButton, когда флажок или unchecked.Same время Я также хочу добавить или удалить выбранное/невыбранное значение флажка из массива. Но когда я запускаю этот код, он работает неправильно. Когда я выбрал один флажок (с первого взгляда), вместо первого вида открывается видимый переключатель другого вида. Еще одна вещь, которую я также хочу выбрать только одну радиокнопку (когда я выбрал более 2 флажков).

Answer 1

Пожалуйста, попробуйте это:

public class HAAR extends ArrayAdapter<HAM> { 

Context context; 
ArrayList<HAM> selectedhospital; 
ArrayList<String> hospitalid = new ArrayList<String>(); 
int clickedRadioButtonPosition = -1; 

ViewHolder viewHolder = null; 

public HAAR(Context context, int resourceId, ArrayList<HAM> selectedhospital) { 
    super(context, resourceId, selectedhospital); 
    this.context = context; 
    this.selectedhospital = new ArrayList<HAM>(); 
    this.selectedhospital.addAll(selectedhospital); 
} 

// View lookup cache 
private static class ViewHolder { 
    TextView name; 
    TextView home; 
    CheckBox chk_hospitallist; 
    RadioButton rbt_primarylocation; 

} 

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

    LayoutInflater mInflater = (LayoutInflater) context 
      .getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 

    if (convertView == null) { 
     // If there's no view to re-use, inflate a brand new view for row 
     convertView = mInflater.inflate(R.layout.ha_list_item_name, null); 
     viewHolder = new ViewHolder(); 

     viewHolder.name = (TextView) convertView.findViewById(R.id.txt_ha_name); 
     viewHolder.home = (TextView) convertView.findViewById(R.id.txt_ha_town); 
     viewHolder.chk_hospitallist = (CheckBox) convertView.findViewById(R.id.chk_box_ha_list); 
     viewHolder.rbt_primarylocation = (RadioButton) convertView.findViewById(R.id.rbtn_pl); 

     viewHolder.chk_hospitallist.setOnClickListener(new View.OnClickListener() 
     { 
      public void onClick(View v) 
      { 
       CheckBox cb = (CheckBox) v; 
       View finalConvertView = (View) v.getParent(); 
       RadioButton rbt_primarylocation = (RadioButton) finalConvertView.findViewById(R.id.rbtn_pl); 
       int pos = (Integer) v.getTag(); 
       HAM _state = (HAM) selectedhospital.get(pos); 

       if(cb.isChecked()) 
       { 
        _state.setSelected(cb.isChecked()); 
        // Update ArrayList 
        selectedhospital.remove(pos); 
        selectedhospital.add(pos, _state); 

        hospitalid.add(_state.getId().toString()); 
        rbt_primarylocation.setVisibility(View.VISIBLE); 

        Toast.makeText(
          v.getContext(), 
          "Clicked on If: " + _state.getId().toString() + " is " 
            + cb.isChecked(), Toast.LENGTH_LONG).show(); 
       } 
       else 
       { 
        _state.setSelected(false); 
        hospitalid.remove(_state.getId().toString()); 

        // When unchecked the one with radio button selected 
        if(rbt_primarylocation.isChecked()){ 
         if(hospitalid.size() > 0){ 
          Toast.makeText(
            v.getContext(), 
            "Please select an radio button", Toast.LENGTH_LONG).show(); 
         } 
        } 

        rbt_primarylocation.setVisibility(View.INVISIBLE); 

        Toast.makeText(
          v.getContext(), 
          "Clicked on Else: " + _state.getId().toString() + " is " 
            + cb.isChecked(), Toast.LENGTH_LONG).show(); 
       } 
      } 
     }); 
     viewHolder.rbt_primarylocation.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       clickedRadioButtonPosition = (Integer) v.getTag(); 
       notifyDataSetChanged(); 
      } 
     }); 
     // Cache the viewHolder object inside the fresh view 
     convertView.setTag(viewHolder); 
    } else { 
     // View is being recycled, retrieve the viewHolder object from tag 
     viewHolder = (ViewHolder) convertView.getTag(); 
    } 

    HAM state = selectedhospital.get(position); 

    viewHolder.name.setText(state.getName()); 
    viewHolder.home.setText(state.getAddress1()+"\r\n"+ state.getCity()+", "+state.getState()+" "+state.getZip()); 
    viewHolder.chk_hospitallist.setChecked(state.isSelected()); 

    // Set views for view recycling on scrolling 
    if(viewHolder.chk_hospitallist.isChecked()){ 
     viewHolder.rbt_primarylocation.setVisibility(View.VISIBLE); 
    }else{ 
     viewHolder.rbt_primarylocation.setVisibility(View.INVISIBLE); 
    } 
    if(position == clickedRadioButtonPosition){ 
     viewHolder.rbt_primarylocation.setChecked(true); 
    }else{ 
     viewHolder.rbt_primarylocation.setChecked(false); 
    } 

    viewHolder.chk_hospitallist.setTag(position); 
    viewHolder.rbt_primarylocation.setTag(position); 
    return convertView; 
} 

public String getRBClickedItem(){ 
    // Not sure your list will change or not (e.g. from server) 
    // Instead of saving position, save something unique (e.g. Id). 
    return selectedhospital.get(clickedRadioButtonPosition).getId(); 
} 

public ArrayList<String> getCheckedList(){ 
    return hospitalid; 
} 

public void updateWithSavedList(ArrayList<String> savedList, String savedRBItemId){ 
    hospitalid.clear(); 
    hospitalid.addAll(savedList); 
    // Not sure your list will change or not (e.g. from server) 
    // Saved Id, so now search for its position. 
    if(!savedRBItemId.equals("")){ 
     int tmpSearchPosition = -1; 
     for(int i=0; i<selectedhospital.size(); i++){ 
      if(selectedhospital.get(i).getId().equals(savedRBItemId)){ 
       tmpSearchPosition = i; 
      } 
     } 
     if(tmpSearchPosition != -1) clickedRadioButtonPosition = tmpSearchPosition; 
    } 
    notifyDataSetChanged(); 
} 
} 

Надеюсь, что эта помощь!

Answer 2

Я думаю, что одна из проблем вызван ваша установки viewHolder.rbt_primarylocation внутри OnClick()

Крепления это должно сделать правильное RadioButton видимого