Question

我已经在这个问题上待了一整天了，现在还无法解决。我希望你能提供帮助。我有一个自定义GridView，它在项目位置0上加载图像时出现问题：

每次都会被调用3次。
在我采取某些行动之前，图像没有显示（让我说我点击一个按钮导航到另一个页面然后返回到该页面。现在我可以看到图像了。）

我使用的是CustomGridView：ExpandableHeightGridView

我的适配器：

private final class SubCatListAdapter extends BaseAdapter implements AdapterView.OnItemClickListener {

    public JSONArray data;
    private final Context context;

    public SubCatListAdapter(Context context, JSONArray values) {
        super();
        this.context = context;
        this.data = values;
    }

    // ...

    class ViewHolder {

        public TextView txtViewCatName;
        public SimpleDraweeView imgLogo;

    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        View rowView = convertView;
        ViewHolder viewHolder = null;

        if (rowView == null) {

            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            rowView = inflater.inflate(R.layout.gamification_subcat_adapter, parent, false);
            viewHolder = new ViewHolder();
            viewHolder.imgLogo = (SimpleDraweeView) rowView.findViewById(R.id.imgLogo);
            viewHolder.txtViewCatName = (TextView) rowView.findViewById(R.id.txtViewCatName);

            rowView.setTag(viewHolder);

        } else {

            viewHolder = (ViewHolder) rowView.getTag();
        }

        // data
        try {
            JSONObject node = getItem(position);
            viewHolder.txtViewCatName.setText(Html.fromHtml(node.getString("CatName")).toString());
            String catLogo = node.getString("CatLogoPath");
            viewHolder.imgLogo.setImageURI(Uri.parse(catLogo));
            Log.d("TAG", "position: " + position);

            return rowView;

        } catch (Exception e) {
            e.printStackTrace();
            return new View(context);
        }
    }

}

Log.d标记显示位置0被加载3次：

D/TAG﹕ position: 0
D/TAG﹕ position: 0
D/TAG﹕ position: 0
D/TAG﹕ position: 1
D/TAG﹕ position: 2
D/TAG﹕ position: 3

这是位于0,1,2,3位置的项目

请帮助~~我快死了...先谢谢了！

Answer 1

private final class SubCatListAdapter extends BaseAdapter implements AdapterView.OnItemClickListener {

public JSONArray data;
private final Context context;

public SubCatListAdapter(Context context, JSONArray values) {
    super();
    this.context = context;
    this.data = values;
}

// ...

class ViewHolder {

    public TextView txtViewCatName;
    public SimpleDraweeView imgLogo;

}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    View rowView = convertView;
    ViewHolder viewHolder = new ViewHolder();



        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        rowView = inflater.inflate(R.layout.gamification_subcat_adapter, parent, false);

        viewHolder.imgLogo = (SimpleDraweeView) rowView.findViewById(R.id.imgLogo);
        viewHolder.txtViewCatName = (TextView) rowView.findViewById(R.id.txtViewCatName);

        rowView.setTag(viewHolder);



    // data
    try {
        JSONObject node = getItem(position);
        viewHolder.txtViewCatName.setText(Html.fromHtml(node.getString("CatName")).toString());
        String catLogo = node.getString("CatLogoPath");
        viewHolder.imgLogo.setImageURI(Uri.parse(catLogo));
        Log.d("TAG", "position: " + position);

        return rowView;

    } catch (Exception e) {
        e.printStackTrace();
        return new View(context);
    }
}

}

Android：项目位置0

1 个答案: