如何从Internet获取图像并将其粘贴到ListView中？

我正在做我的BlogApp。它从Internet获取所有数据。我添加了三个TextView，但是从JSON获取图像时遇到了问题。我尝试了不同的方法，但是我仍然不知道该怎么做。这是我的代码的一部分：

 private void handleBlogResponse() {
    mProgressBar.setVisibility(View.INVISIBLE);

    if (mBlogData==null){
        updateDisplayForError();

    }else {
        try {
            JSONArray jsonPosts = mBlogData.getJSONArray("posts");
            ArrayList<HashMap<String, String>> blogPosts = new ArrayList<HashMap<String, String>>();
            for (int i=0; i<jsonPosts.length(); i++){
                JSONObject posts = jsonPosts.getJSONObject(i);
                String title = posts.getString(KEY_TITLE); //"title"
                title = Html.fromHtml(title).toString();
                String author = posts.getString(KEY_AUTHOR); //"author"
                author = Html.fromHtml(author).toString();
                String time = posts.getString((KEY_TIME));  //"time"
                time = Html.fromHtml(time).toString();
                String icon = posts.getString(KEY_ICON);  //"icon" (icons url)
                icon = Html.fromHtml(icon).toString();

我在这里停了下来，不知道下一步该怎么做！可能应该为我的图像添加适配器以进行转换？

                HashMap<String, String> blogPost = new HashMap<String, String>();
                blogPost.put(KEY_TITLE, title);
                blogPost.put(KEY_AUTHOR, author);
                blogPost.put(KEY_TIME, time);

                blogPosts.add(blogPost);
            }

            String[] keys = {KEY_TITLE, KEY_AUTHOR, KEY_TIME};
            int[] ids = {R.id.textView1, R.id.textView2, R.id.textView3};
            SimpleAdapter adapter = new SimpleAdapter(this, blogPosts, R.layout.row_layout,
                    keys, ids);
            setListAdapter(adapter);

        } catch (JSONException e) {
            Log.e(TAG, "Exception caught" + e);
        }
    }
}

感谢您的提醒！