OnClickListener不會更改自定義BaseAdapter中的視圖

Question

我有一個自定義BaseAdapter，該行中有一些視圖。
主要是一個複選框（ImageView）和按鈕（ImageView）和隱藏文本（TextView）。
每當我點擊複選框，我想改變它的可繪製，它似乎工作，但只有當我notifyDataSetChanged - 哪些IMO應該不重要。如果我刪除這條線，那麼它有時會起作用，有時不起作用。
更重要的部分是我希望按鈕顯示/隱藏holder.expansion但它不起作用。無論v.getTag()我也試圖使用holder.expansion，但它也沒有工作。

我怎樣才能使它工作？要更改複選框可繪製並顯示/隱藏擴展文本？

@Override 
public View getView(int position, View view, ViewGroup parent) 
{ 
    final DrugHolder holder; 
    if (view == null) 
    { 
     holder = new DrugHolder(); 
     view = inflater.inflate(R.layout.drug_list_row, null); 
     holder.name = (TextView) view.findViewById(R.id.drug_list_name); 
     holder.checkbox = (ImageView) view.findViewById(R.id.drug_list_checkbox); 
     holder.arrow = (LinearLayout) view.findViewById(R.id.drug_list_arrow_button); 
     holder.expansion = (LinearLayout) view.findViewById(R.id.drug_list_expansion); 
     holder.fullName = (TextView) view.findViewById(R.id.drug_list_full_name); 
     holder.quantity = (TextView) view.findViewById(R.id.drug_list_quantity); 
     holder.unitDose = (TextView) view.findViewById(R.id.drug_list_unit_dose); 

     view.setTag(holder); 
    } 
    else 
    { 
     holder = (DrugHolder) view.getTag(); 
    } 
    int colorPos = position % colors.length; 
    view.setBackgroundColor(colors[colorPos]); 

    Drug drug = allItems.get(position); 
    holder.name.setText(drug.Name); 
    holder.fullName.setText(drug.Name); 
    holder.quantity.setText(String.format(Locale.GERMANY, "%.2f", drug.Quantity)); 
    holder.unitDose.setText(drug.DoseType); 
    holder.arrow.setTag(holder.expansion); 

    holder.checkbox.setOnClickListener(new View.OnClickListener() 
    { 
     @Override 
     public void onClick(View v) 
     { 
      ImageView view = (ImageView) v; 
      if (view.isSelected()) 
      { 
       view.setSelected(false); 
       view.setImageDrawable(context.getDrawable(R.drawable.ic_icon_checkbox_unchecked)); 
      } 
      else 
      { 
       view.setSelected(true); 
       view.setImageDrawable(context.getDrawable(R.drawable.ic_icon_checkbox_checked)); 
      } 
      notifyDataSetChanged(); 
     } 
    }); 

    holder.arrow.setOnClickListener(new View.OnClickListener() 
    { 
     @Override 
     public void onClick(View v) 
     { 
      LinearLayout view = (LinearLayout) v.getTag(); 
      if (view.getVisibility() == View.VISIBLE) 
      { 
       view.setVisibility(View.GONE); 
      } 
      else 
      { 
       view.setVisibility(View.VISIBLE); 
      } 
      notifyDataSetChanged(); 
     } 
    }); 

    return view; 
} 

根據變化的主張我做了這一點：

if (drug.isChecked()) //Here breakpoint - enters only when entering activity 
    { 
     holder.checkbox.setImageDrawable(context.getDrawable(R.drawable.ic_icon_checkbox_checked)); 
    } 
    else 
    { 
     holder.checkbox.setImageDrawable(context.getDrawable(R.drawable.ic_icon_checkbox_unchecked)); 
    } 
    if (drug.isExpanded()) 
    { 
     holder.fullName.setVisibility(View.VISIBLE); 
    } 
    else 
    { 
     holder.fullName.setVisibility(View.GONE); 
    } 

    holder.checkbox.setOnClickListener(new View.OnClickListener() 
    { 
     @Override 
     public void onClick(View v) 
     { 
      drug.setChecked(!drug.isChecked()); // Breakpoint - enters when clicks 
      notifyDataSetChanged(); // After F8 goes to this line but never goes to getView again 
     } 
    }); 

    holder.arrow.setOnClickListener(new View.OnClickListener() 
    { 
     @Override 
     public void onClick(View v) 
     { 
      drug.setExpanded(!drug.isExpanded()); // Breakpoint - enters when click 
      notifyDataSetChanged(); // Never goes to this line after F8 - instead it jumps to View.java and shows red block with 'Source code does not match byte code 
     } 
    }); 

Answer 1

您需要保存在檢查有關國家藥品信息，當你設置數據進入視野檢查這個狀態。例如，

if (drug.isChecked()) { 
holder.checkbox.setImageDrawable(context.getDrawable(R.drawable.ic_icon_checkbox_checked)); 
} else { 
holder.checkbox.setImageDrawable(context.getDrawable(R.drawable.ic_icon_checkbox_unchecked)); 
}