异步加载数据加多条目加载

new Myasynctask().execute(path);

class Myasynctask extends AsyncTask<String, Void, String> {
    private Myadapter myadapter;

    //请求数据
    @Override
    protected String doInBackground(String... strings) {
        try {
            //获取url
            URL url = new URL(strings[0]);
            //请求网络
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            //设置post请求
            //urlConnection.setRequestMethod("POST");
            int code = urlConnection.getResponseCode();
            //判断是否返回成功
            if (code == 200) {
                //获取网络信息
                InputStream inputStream = urlConnection.getInputStream();
                BufferedReader bf = new BufferedReader(new InputStreamReader(inputStream));
                builder = new StringBuilder();
                String s = "";
                while ((s = bf.readLine()) != null) {
                    builder.append(s);
                }
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return builder.toString();
    }

    //运行在主线程
    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
        Gson gson = new Gson();
        Bean bean = gson.fromJson(s, Bean.class);
        Bean.DataBean data = bean.getData();
        list = data.getComics();
        myadapter = new Myadapter();
        mlistview.setAdapter(myadapter);

}

//适配器

class Myadapter extends BaseAdapter {
    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public Object getItem(int i) {
        return list.get(i);
    }

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

    class ViewHolder {
        TextView tv;
        ImageView img, img2;
    }

    @Override
    public int getItemViewType(int position) {
        if (position % 2 == 0) {
            return 0;
        } else {
            return 1;
        }
    }

    @Override
    public int getViewTypeCount() {
        return 2;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        int type = getItemViewType(i);
        ViewHolder vh;
        if (type == 0) {
            if (view == null) {
                vh = new ViewHolder();
                view = View.inflate(getActivity(), R.layout.list1, null);
                vh.tv = (TextView) view.findViewById(R.id.textView);
                vh.img = (ImageView) view.findViewById(R.id.imageView);
                vh.img2 = (ImageView) view.findViewById(R.id.imageView2);
                view.setTag(vh);
            } else {
                vh = (ViewHolder) view.getTag();
            }
            vh.tv.setText(list.get(i).getTitle());
            ImageLoader.getInstance().displayImage(list.get(i).getCover_image_url(), vh.img);
            ImageLoader.getInstance().displayImage(list.get(i).getTopic().getCover_image_url(), vh.img2);
        } else {
            if (view == null) {
                vh = new ViewHolder();
                view = View.inflate(getActivity(), R.layout.list2, null);
                vh.tv = (TextView) view.findViewById(R.id.textView);
                vh.img = view.findViewById(R.id.imageView);
                view.setTag(vh);
            } else {
                vh = (ViewHolder) view.getTag();
            }
            vh.tv.setText(list.get(i).getTitle());
            ImageLoader.getInstance().displayImage(list.get(i).getCover_image_url(), vh.img);
        }

        return view;

}
//ImageLoader

public class MApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        ImageLoaderConfiguration config = new ImageLoaderConfiguration
                .Builder(this)
                // max width, max height，即保存的每个缓存文件的最大长宽
                .memoryCacheExtraOptions(480, 800)
                //线程池内加载的数量
                .threadPoolSize(5)
                .threadPriority(Thread.NORM_PRIORITY - 2)
                .denyCacheImageMultipleSizesInMemory()
                // You can pass your own memory cache implementation/你可以通过自己的内存缓存实现
                .memoryCache(new UsingFreqLimitedMemoryCache(2 * 1024 * 1024))
                .memoryCacheSize(2 * 1024 * 1024)
                .tasksProcessingOrder(QueueProcessingType.LIFO)
                .defaultDisplayImageOptions(DisplayImageOptions.createSimple())
                // connectTimeout (5 s), readTimeout (30 s)超时时间
                .imageDownloader(new BaseImageDownloader(this, 5 * 1000, 30 * 1000))
                // Remove for release app
                .writeDebugLogs()
                //开始构建
                .build();
        //初始化imageloader;
        ImageLoader.getInstance().init(config);
    }
}