ListView自定义适配器丢失imageView

我建议您使用AQuery的图像加载

我的代码与AQuery的图片加载效果很好

public class FriendListAdapter extends BaseAdapter {

private static class ViewHolder {
    public final RelativeLayout rootView;
    public final ImageView ivFriendAvatar;
    public final TextView tvFriendName;
    public final ImageView ivOnlineStatus;

    private ViewHolder(RelativeLayout rootView, ImageView ivFriendAvatar,
            TextView tvFriendName, ImageView ivOnlineStatus) {
        this.rootView = rootView;
        this.ivFriendAvatar = ivFriendAvatar;
        this.tvFriendName = tvFriendName;
        this.ivOnlineStatus = ivOnlineStatus;
    }

    public static ViewHolder create(RelativeLayout rootView) {
        ImageView ivFriendAvatar = (ImageView) rootView
                .findViewById(R.id.iv_friend_avatar);
        TextView tvFriendName = (TextView) rootView
                .findViewById(R.id.tv_friend_name);
        ImageView ivOnlineStatus = (ImageView) rootView
                .findViewById(R.id.iv_online_status);
        return new ViewHolder(rootView, ivFriendAvatar, tvFriendName,
                ivOnlineStatus);
    }
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    final ViewHolder vh;
    if (convertView == null) {
        mInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = mInflater.inflate(R.layout.item_lv_friend_list,
                parent, false);
        vh = ViewHolder.create((RelativeLayout) convertView);
        convertView.setTag(vh);
    } else {
        vh = (ViewHolder) convertView.getTag();
    }

    AQuery aq = listAq.recycle(convertView);
    Bitmap placeHolder = aq.getCachedImage(R.drawable.anochat_ic_stub);

    Profile item = data.get(position);

    try {
        isLoadDelay = aq.shouldDelay(position, convertView, parent,
                item.getRealAvatar().getThumbnailURL());
    } catch (Exception e) {
        isLoadDelay = false;
    }

    if (isLoadDelay) {
        aq.id(vh.ivFriendAvatar).image(placeHolder);
    } else {
        if (item.getRealAvatar() == null) {
            aq.id(vh.ivFriendAvatar).image(R.drawable.anochat_ic_avatar);
        } else {
            aq.id(vh.ivFriendAvatar).image(item.getRealAvatar().getThumbnailURL(), true, true, 0,
                    R.drawable.anochat_ic_stub);
        }
    }

    if (item.getOnlineStatus() == OnlineStatus.ONLINE.ordinal()) {
        vh.ivOnlineStatus.setImageResource(R.drawable.anochat_ic_online);
    } else {
        vh.ivOnlineStatus.setImageResource(R.drawable.anochat_ic_offline);
    }

    if (item.getRealName() == null || item.getRealName().trim().length() == 0) {
        vh.tvFriendName.setText(item.getUserName());
    } else {
        vh.tvFriendName.setText(item.getRealName());
    }

    return convertView;
}

private LayoutInflater mInflater;
private Context context;
private List<Profile> data = new ArrayList<Profile>();
private AQuery listAq;
private boolean isLoadDelay;

// Constructors
public FriendListAdapter(Context context, List<Profile> data, AQuery listAq) {
    super();
    this.mInflater = LayoutInflater.from(context);
    this.context = context;
    this.data = data;
    this.listAq = listAq;
}

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

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

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