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我正在使用来自 kankan 项目的轮子小部件。我跟着演示。我为轮子项目实现了一个自定义视图，加载后大部分轮子项目都没有显示。这是我的代码：

我的适配器：

public class MyAdapter implements WheelViewAdapter {
    // Countries names
    static class ViewHolder {
        TextView tvUserName;
        TextView tvcountry;
        TextView tvAge;
        TextView tvPlayTime;
        ImageView imProfilePhoto;
}

private User[] fans;
User fan;
Context con;

// Countries flags

/**
 * Constructor
 */
public MyAdapter(Context context, User[] fans) {
        super();
        this.fans = fans;
        con = context;
        //setItemTextResource(R.id.textViewCountryV);
}

@Override
public View getItem(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
    //super.getItem(poition, convertView, parent);
    ViewHolder holder;
        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) con
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.fan_roulette_item, parent, false);
            holder = new ViewHolder();
            holder.imProfilePhoto = (ImageView) convertView.findViewById(R.id.ivProfilePhoto);

            fan = this.fans[position];
            holder.tvcountry = (TextView) convertView.findViewById(R.id.textViewCountryV);
            holder.tvAge = (TextView) convertView.findViewById(R.id.textViewAgeV);
            holder.tvPlayTime = (TextView) convertView.findViewById(R.id.textViewPlayTimeV);
            holder.tvUserName = (TextView) convertView.findViewById(R.id.textViewUserNameV);

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

        MainActivity.myImageLoader.DisplayImage(fans[position].imageURL,
                holder.imProfilePhoto, true);
        holder.tvUserName.setText(fan.username);
        holder.tvcountry.setText(fan.country);
        holder.tvAge.setText("" + fan.age);
        holder.tvPlayTime.setText("" + fan.playTime);
        return convertView;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) con
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.fan_roulette_item, parent, false);
            holder = new ViewHolder();
            holder.imProfilePhoto = (ImageView) convertView.findViewById(R.id.ivProfilePhoto);

            fan = this.fans[position];
            holder.tvcountry = (TextView) convertView.findViewById(R.id.textViewCountryV);
            holder.tvAge = (TextView) convertView.findViewById(R.id.textViewAgeV);
            holder.tvPlayTime = (TextView) convertView.findViewById(R.id.textViewPlayTimeV);
            holder.tvUserName = (TextView) convertView.findViewById(R.id.textViewUserNameV);

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

        MainActivity.myImageLoader.DisplayImage(fans[position].imageURL,
                holder.imProfilePhoto, true);
        holder.tvUserName.setText(fan.username);
        holder.tvcountry.setText(fan.country);
        holder.tvAge.setText("" + fan.age);
        holder.tvPlayTime.setText("" + fan.playTime);
        return convertView;
}

    @Override
    public int getItemsCount() {
        return fans.length;
    }

    public User getCurrentItem(int currentWheelItem) {
        return this.fans[currentWheelItem];
    }

    @Override
    public View getEmptyItem(View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void registerDataSetObserver(DataSetObserver observer) {
        // TODO Auto-generated method stub
    }


    @Override
    public void unregisterDataSetObserver(DataSetObserver observer) {
        // TODO Auto-generated method stub
    }
}

症状是：刚开始加载轮子时，有时我可以看到我的自定义项目，有时我看不到。滚动 10 次中的 9 次后，只能看到项目中的图像显示，而所有其他文本视图均未显示。

我在互联网上进行了搜索，但没有找到任何解决方案。

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1 回答 1

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没有人回答，但我找到了解决方案。经过数小时的调试和尝试，我发现问题出在 WheelViewAdapter 的自定义项的大小上。项目的宽度和高度必须小于轮子小部件本身。我的更大，然后导致透明的渲染错误（我在 logcat 中看不到任何错误）

我希望它有帮助

于 2013-12-10T17:07:13.967 回答