使用SimpleAdapter显示网络图片

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SimpleAdapter本身是不支持网络图片的，绑定setViewBinder显示一张网络图片。

SimpleAdapter adapter = new SimpleAdapter(this, getData(), R.layout.like_list,                new String[]{"news_img", "news_title", "news_desc"},                new int[]{R.id.like_img, R.id.like_title, R.id.like_desc});        adapter.setViewBinder(new SimpleAdapter.ViewBinder() {            public boolean setViewValue(View view, Object data,                                        String textRepresentation) {                if (view instanceof ImageView) {                    URL url = null;                    try {                        url = new URL((String) data);                        ImageView iv = (ImageView) view;                        iv.setImageBitmap(BitmapFactory.decodeStream(url.openStream()));                    } catch (MalformedURLException e) {                        e.printStackTrace();                    } catch (IOException e) {                        e.printStackTrace();                    }                    return true;                } else                    return false;            }        });

其中，news_img字段为data的url。

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