Question

我想为listview中每个项目中的每个开关设置一个单独的监听器。我该如何完成这项工作？

我的异步任务中调用的方法是setQueues：

    private void setQueues(final JSONObject[] qInfo) 
{
    queues = new QueueItem[qInfo.length]; // QueueItem consists of a string(label) and a boolean(value)

    for(int i = 0; i < qInfo.length; i++)
    {
        queues[i] = new QueueItem();
        //final int ii = i;

        // Formatting the queue title
        String name = qInfo[i].optString("name").replace("-", " ");
        name = name.replace("_", " ");
        name = name.replace("ipinion", "");
        name = name.replace("  ", " ");
        name = capitalizeFirstLetters(name);
        queues[i].label = name;

        try {
            if(qInfo[i].getString("active").contains("1"))
            {
                Log.d("QBox", "Queue: Checkbox " + i + " : Checked TRUE");
                queues[i].value = true;
            }
            else
            {
                Log.d("QBox", "Queue Checkbox " + i + " : Checked FALSE");  
                queues[i].value = false;
            }
        } 
        catch (JSONException e) 
        {
            e.printStackTrace();
        }

    }

    lv.setAdapter(new QueueAdapter(getActivity(), 
            R.layout.queues_items, queues));
}

非常感谢任何帮助。我觉得我错过了一些非常明显的东西。

编辑：来自QueueAdapter的getView方法：

    @Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;
    QueueHolder holder = null;

    if(row == null)
    {
        LayoutInflater inflater = ((Activity)context).getLayoutInflater();
        row = inflater.inflate(layoutResourceId, parent, false);

        holder = new QueueHolder();
        holder.queueswitch = (Switch)row.findViewById(R.id.queues_item_switch);
        holder.txtLabel = (TextView)row.findViewById(R.id.queues_item_text);

        row.setTag(holder);
    }
    else
    {
    holder = (QueueHolder)row.getTag();
    }

    QueueItem queue = data[position];
    holder.txtLabel.setText(queue.label);
    holder.queueswitch.setChecked(queue.value);
    // Is this where you would set up your listener?    

    return row;
}

Answer 1

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;
    QueueHolder holder = null;

    if(row == null)
    {
        LayoutInflater inflater = ((Activity)context).getLayoutInflater();
        row = inflater.inflate(layoutResourceId, parent, false);
        holder = new QueueHolder();
        holder.queueswitch = (Switch)row.findViewById(R.id.queues_item_switch);
        /* TRY PUTTING IT HERE */
        holder.txtLabel = (TextView)row.findViewById(R.id.queues_item_text);

        row.setTag(holder);
    }
    else
    {
    holder = (QueueHolder)row.getTag();
    }

    QueueItem queue = data[position];
    holder.txtLabel.setText(queue.label);
    holder.queueswitch.setChecked(queue.value);
    holder.queueswitch.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        //DO SOMETHING
        }
    });

    return row;
}

这样就行了！我不确定，但尝试把它放在“/ *尝试把它放在这里* /”的地方，我不确定它是否会起作用但是它会更好，因为onClickListener的启动只发生一次......

如何在自定义列表视图中为交换机设置监听器？

1 个答案: