android - 复选框无法与 ListView 一起正常工作

Question

我正在为 listview 的每个 Iten 实现带有 listview 的复选框。我遇到的问题是当我单击任何一个复选框然后一些其他未单击的复选框也被随机单击时。

public View getView(int position, View convertView, ViewGroup parent) {
            // TODO Auto-generated method stub

            View vi = convertView;
            final int as=position;
            if (convertView == null) { // if it's not recycled, initialize some
                // attributes
                LayoutInflater  inflater = (LayoutInflater) activity
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                vi = inflater.inflate(R.layout.grid_item, null);
                holder = new ViewHolder();

                holder.textheader = (TextView) vi.findViewById(R.id.item1);
                holder.textcpu = (TextView) vi.findViewById(R.id.item2);
                holder.text_modified_date = (TextView) vi.findViewById(R.id.item4);
                holder.text_cpu = (TextView) vi.findViewById(R.id.item3);
                holder.text_checkbox=(CheckBox)vi.findViewById(R.id.checkBox1);
                vi.setTag(holder);

                holder.text_checkbox.setOnClickListener(new OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        if (holder.text_checkbox.isClickable()) {
                            itemChecked.set(as, true);
                            packages=as;
                        } else if (!holder.text_checkbox.isClickable()) {
                            itemChecked.set(as, false);
                        }
                        String packag=app_package.get(as);
                        Log.d("package listttttttttt", packag);
                    }
                });


            } else {
                holder = (ViewHolder) vi.getTag();


            }

Answer 1

试试下面的代码

public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub

        View vi = convertView;
        final int as=position;
        if (convertView == null) { // if it's not recycled, initialize some
            // attributes
            LayoutInflater  inflater = (LayoutInflater) activity
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            vi = inflater.inflate(R.layout.grid_item, null);
            holder = new ViewHolder();

            holder.textheader = (TextView) vi.findViewById(R.id.item1);
            holder.textcpu = (TextView) vi.findViewById(R.id.item2);
            holder.text_modified_date = (TextView) vi.findViewById(R.id.item4);
            holder.text_cpu = (TextView) vi.findViewById(R.id.item3);
            holder.text_checkbox=(CheckBox)vi.findViewById(R.id.checkBox1);
            vi.setTag(holder);

        } else {
            holder = (ViewHolder) vi.getTag();
        }          


             holder.text_checkbox.setOnCheckedChangeListener(new OnCheckedChangeListener() 
             {          
              public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)      
                {                                  
                if(isChecked)
                {
                      // do your stuff
                      itemChecked.set(as, true);
                        packages=as;
                }
                else
                {
                      // do your stuff
                      itemChecked.set(as, false);
                }       

        }
    });

if(itemChecked.size() != 0 && itemChecked.get(position))
        holder.text_checkbox.setChecked(true);
    else
        holder.text_checkbox.setChecked(false);