请教一个问题,listview里面嵌套gridview的问题 about weibo HOT 5 CLOSED

//获取gridview的宽高参数
mParams = (LinearLayout.LayoutParams) ViewHolder.gridview.getLayoutParams();

/根据数据集mImageDatas的数量，计算展示这些数据集需要多少行，然后再乘以单个item的布局高度，得到总的gridview高度
mParams.height = (DensityUtil.dp2px(mContext, 110f)) * getImgLineCount(mImageDatas) + 
(DensityUtil.dp2px(mContext, 5f)) * getImgLineCount(mImageDatas);

//同上，根据数据集的内容，来计算一共需要多少列，如果是定值直接写常量即可，再乘以单个item的布局宽度，得到总的gridview的宽度
mParams.width = (DensityUtil.dp2px(mContext, 110f)) * 3 + (DensityUtil.dp2px(mContext, 5f)) * 2;

//设定参数
ViewHolder.gridview.setLayoutParams(mParams);

@Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = mInflater.inflate(R.layout.layout_dynamic_list_item,
                    parent, false);
        }
        // 省略代码...
        NoScrollGridView gridView = ViewHolder.get(convertView, R.id.gridview);
        // 省略代码...
        // 图片
        DynamicGridItemAdapter gridItemAdapter = null;
        if (!TextUtils.isEmpty(imageUrl)) {
            gridView.setVisibility(View.VISIBLE);
            gridView.setOnItemClickListener(new OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view,
                        int position, long id) {
                    handleGridItemClick(bean);
                }
            });
            if (gridView.getAdapter() != null) {
                gridItemAdapter = (DynamicGridItemAdapter) gridView
                        .getAdapter();
                gridItemAdapter.setUrlArray(new String[] { imageUrl });
            } else {
                gridItemAdapter = new DynamicGridItemAdapter();
                gridView.setAdapter(gridItemAdapter);
                gridItemAdapter.setUrlArray(new String[] { imageUrl });
            }
            // 很重要,让listview的onItemClick有效果
            GridViewUtils.updateGridViewLayoutParams(gridView, 3);
        } else {
            gridView.setVisibility(View.GONE);
        }
        // 省略代码...
        return convertView;
    }

public class ViewHolder {
    /**
     * <T extends View> 泛型的声明 , T 表示方法的返回值
     * 
     * @param view
     * @param id
     * @return
     */
    public static <T extends View> T get(View view, int id) {
        SparseArray<View> viewHolder = (SparseArray<View>) view.getTag();
        if (viewHolder == null) {
            viewHolder = new SparseArray<View>();
            view.setTag(viewHolder);
        }
        View childView = viewHolder.get(id);
        if (childView == null) {
            childView = view.findViewById(id);
            viewHolder.put(id, childView);
        }
        return (T) childView;
    }
}

public class DynamicGridItemAdapter extends BaseAdapter {
    private ArrayList<String> urlList;
    String url = "http://pic.sc.chinaz.com/files/pic/pic9/201509/apic14886.jpg";

    public DynamicGridItemAdapter() {
        urlList = new ArrayList<String>();
    }

    public void setUrlArray(String[] urlArray) {
        urlList.clear();
        for (int i = 0; i < urlArray.length; i++) {
            urlList.add(urlArray[i]);
        }
        notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        return urlList != null ? urlList.size() : 0;
    }

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

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            LayoutInflater inflater = (LayoutInflater) parent.getContext()
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(
                    R.layout.layout_dynamic_list_grid_item, parent, false);
        }
//      DebugToolUtils.printTest("getView", "position===="+position+"$$$$$convertView====="+convertView);
        ImageView imageView = ViewHolder
                .get(convertView, R.id.iv_gridview_item);
//       ImageLoaderUtils.displayImage(url, imageView);
        ImageLoaderUtils.displayImage(urlList.get(position), imageView);
        return convertView;
    }
}

/**
     * 加载图片
     * 
     * @param uri
     *            图片地址
     * @param imageView
     *            图片控件
     */
    public static void displayImage(String uri, ImageView imageView) {
        ImageAware imageAware = new ImageViewAware(imageView, false);
        ImageLoader.getInstance().displayImage(uri, imageAware,
                getCustomOptions());
    }