Question

我现在有一个listview使用simplecursoradapter从数据库中获取数据，我查询数据库中的链接并将其分配给列表每行中的一个按钮，我正在重写simplecursoradapter类，为按钮设置onclicklistener，但我的代码不起作用，有人会告诉我这是什么问题吗？ THX

这是我的适配器

public class ChannelAdapter extends SimpleCursorAdapter{

    private LayoutInflater mInflater;
    private List<ChannelPoster> items;
    private Context mContext;
    private String dblink;

    public ChannelAdapter(Context context, int layout, Cursor c, String[] from,
            int[] to) {
        super(context, layout, c, from, to);
        // TODO Auto-generated constructor stub
    }

    @Override
    public View getView(int position,View convertView,ViewGroup par)
    {
      ViewHolder holder;

      if(convertView == null)
      {

        convertView = mInflater.inflate(R.layout.channelview, null);

        holder = new ViewHolder();
        holder.image = (ImageView) convertView.findViewById(R.id.poster);
        holder.text = (TextView) convertView.findViewById(R.id.channel); 
        holder.button = (ImageButton) convertView.findViewById(R.id.douban);
        convertView.setTag(holder);

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

      ChannelPoster tmpN=(ChannelPoster)items.get(position);

      holder.text.setText(tmpN.getChannel());
      holder.image.setImageResource(tmpN.getPoster());
      holder.button.setOnClickListener(new ImageButton.OnClickListener() 
      {
      public void onClick(View v) 
      {
        // TODO Auto-generated method stub 

          Intent intent = new Intent();
          intent.setClass(mContext, Doubanframe.class);
          Bundle bunde = new Bundle();
          bunde.putString("dblink",dblink);
          intent.putExtras(bunde);
          mContext.startActivity(intent);

            } 

      });
      return convertView;
    }


    private class ViewHolder
    {
    ImageView image;
    TextView text;
    ImageButton button;
    }
  }

这就是我填充listview的方式

mDB = new ChannelDB(this);

        String[] columns = {mDB.KEY_ID, mDB.KEY_POSTER, mDB.KEY_CHANNEL, mDB.KEY_PATH, mDB.KEY_DBLINK};
        String   table   = mDB.channelS_TABLE;

        c = mDB.getHandle().query(table, columns, null, null, null, null, null);

        startManagingCursor(c);

        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,
                R.layout.channelview,
                c,
                new String[] {mDB.KEY_POSTER, mDB.KEY_CHANNEL, mDB.KEY_DBLINK},
                new int[] { R.id.poster, R.id.channel, R.id.douban});

        channellist.setAdapter(adapter);

Answer 1

尝试使用android.view.View.OnClickListener

@Override
public View getView(int position,View convertView,ViewGroup par)
{
  ViewHolder holder;

  if(convertView == null)
  {

    convertView = mInflater.inflate(R.layout.channelview, null);

    holder = new ViewHolder();
    holder.image = (ImageView) convertView.findViewById(R.id.poster);
    holder.text = (TextView) convertView.findViewById(R.id.channel); 
    holder.button = (ImageButton) convertView.findViewById(R.id.douban);
     holder.button.setOnClickListener(new android.view.View.OnClickListener() 
  {
  public void onClick(View v) 
  {
    // TODO Auto-generated method stub 

      Intent intent = new Intent();
      intent.setClass(mContext, Doubanframe.class);
      Bundle bunde = new Bundle();
      bunde.putString("dblink",dblink);
      intent.putExtras(bunde);
      mContext.startActivity(intent);

        } 

  });        

    convertView.setTag(holder);

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

  ChannelPoster tmpN=(ChannelPoster)items.get(position);

  holder.text.setText(tmpN.getChannel());
  holder.image.setImageResource(tmpN.getPoster());
  return convertView;
}

Answer 2

public class ChannelAdapter extends SimpleCursorAdapter implements OnClickListener {

@Override
                public void onClick(View view) {
                       public void onClick(View view) {

                int view_id = view.getId();
                Log.d(THIS_FILE, "Im clicked....");



                switch (view_id) {

                case R.id.douban: {
                        dialFeedback.giveFeedback(ToneGenerator.TONE_DTMF_0);
                        keyPressed(KeyEvent.KEYCODE_0);
                        break;
                }
                }
}





}

Answer 3

我使用

中的方法解决了这个问题

Android: ListView elements with multiple clickable buttons

如果有人想知道

如何在Listview中将OnClickListener设置为Button

3 个答案: