在 list view 中如何执行 action？

Question

程序里的listview中有3个image buttons：play、detail、buy。
每一个 image button都有各自的action。那么在 listview 中对每一个 image button 怎样执行 onclick action？
我使用的代码：

public class AndroidThumbnailList extends ListActivity{
      ..........
   public class MyThumbnaildapter extends ArrayAdapter<String>{
      public MyThumbnaildapter(Context context, int textViewResourceId,String[] objects) {
       super(context, textViewResourceId, objects);
            // TODO Auto-generated constructor stub
       }
      public View getView(int position, View convertView, ViewGroup parent) {
           .........
      }
   }

   public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
    _contentUri = MEDIA_EXTERNAL_CONTENT_URI;
    initVideosId();
  setListAdapter(new MyThumbnaildapter(AndroidThumbnailList.this, R.layout.row, _videosId));
  }
}

如何在 list view 创建 action ？

Answer 1

你需要创建自己的 Adapter， 然后 inflate 你想用的视图。然后给每个图像分配一个 OnClick 监听。
给你一个我之前使用的例子

public class GroupListAdapter extends BaseAdapter {

private List<Group> groups;

// ... constructors here

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

@Override
public Group getItem(int position) {
    return groups.get(position);
}

@Override
public long getItemId(int position) {
    return position;
}

@Override
public View getView(final int position, View convertView, final ViewGroup parent) {
    final Group group = getItem(position);

    final View view;
    if (convertView == null)
        view = LayoutInflater.from(parent.getContext()).inflate(R.layout.group, null);
    else
        view = convertView;

    view.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // do stuff when the rest of the view is clicked
        }
    });

    TextView tv = (TextView) view.findViewById(R.id.group_name);
    tv.setText(group.getName());

    final CheckBox check = (CheckBox) view.findViewById(R.id.group_checkbox);
    check.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // do stuff when clicked
        }
    });


    return view;
}
}