按钮onListView中的单击

debugcn 发表于 Dev

激光

嗨，我有动态 ListView的下一个表格：

----------------------------
[TextView][Button]
----------------------------

我希望能够收到OnClickButton；我该怎么办：
以下方法无济于事：

   lv = (ListView)findViewById(R.id.listViewmain);
...
        lv.setOnItemClickListener(new ListView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Log.i("click on button", "click on button");
                Toast.makeText(getBaseContext(), item, Toast.LENGTH_LONG).show();

            }
        });

这也无济于事（而且应用程序已崩溃）：

Button b = (Button)findViewById(R.id.buttonTest);
        b.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });

我该怎么做？

拉克西

如果您在列表视图中有一个按钮，并且您需要捕获onclick甚至在该按钮上。您必须覆盖基本适配器。

public class CustomBaseAdapter extends BaseAdapter {
Context context;
List<RowItem> rowItems;

public CustomBaseAdapter(Context context, List<RowItem> items) {
    this.context = context;
    this.rowItems = items;
}

/*private view holder class*/
private class ViewHolder {
    ImageView button;
    TextView txtTitle;
    TextView txtDesc;
}

public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder = null;

    LayoutInflater mInflater = (LayoutInflater)
        context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
    if (convertView == null) {
        convertView = mInflater.inflate(R.layout.list_item, null);
        holder = new ViewHolder();
        holder.txtDesc = (TextView) convertView.findViewById(R.id.desc);
        holder.txtTitle = (TextView) convertView.findViewById(R.id.title);
        holder.button= (Button) convertView.findViewById(R.id.icon);
        convertView.setTag(holder);
    }
    else {
        holder = (ViewHolder) convertView.getTag();
    }

holder.button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {

    }
});

    RowItem rowItem = (RowItem) getItem(position);

    holder.txtDesc.setText(rowItem.getDesc());
    holder.txtTitle.setText(rowItem.getTitle());
    holder.imageView.setImageResource(rowItem.getImageId());

    return convertView;
}

@Override
public int getCount() {
    return rowItems.size();
}

@Override
public Object getItem(int position) {
    return rowItems.get(position);
}

@Override
public long getItemId(int position) {
    return rowItems.indexOf(getItem(position));
}