/**  * 3,加載更多  * 注意事項(xiàng):  * 請求成功數(shù)據(jù)更新之后,要關(guān)閉SpringView  */ private void onDealLoadmore() {  //資訊的網(wǎng)絡(luò)請求地址  String newsUrl = Constant.NEWS_URL;  //http://www.oschina.net/action/api/news_list?pageIndex=0&catalog=1&pageSize=20  //關(guān)閉SpringView  mSpringView.onFinishFreshAndLoad();  //網(wǎng)絡(luò)請求  OkHttpUtils    .get()    .url(newsUrl)    .addParams("pageIndex", mCurrentPageIndex + "")//固定    .addParams("catalog", "1")//固定,1代表資訊    .addParams("pageSize", "20")//因?yàn)?一頁加載20條數(shù)據(jù)    .build()    .execute(new StringCallback() {     @Override     public void onError(Call call, Exception e, int id) {      Toast.makeText(mContext, "上拉加載失敗", Toast.LENGTH_SHORT).show();      /* //關(guān)閉SpringView      mSpringView.onFinishFreshAndLoad();*/     }     @Override     public void onResponse(String response, int id) {      //請求成功,將字符串轉(zhuǎn)為javaBean,并獲取里面的泛型為News的集合      NewsList newsList = XmlUtils.toBean(NewsList.class, response.getBytes());      //對請求的數(shù)據(jù)進(jìn)行非空判斷      if (newsList != null) {       List<News> list = newsList.getList();       if (list != null && list.size() > 0) {        //數(shù)據(jù)的更新        mData.addAll(newsList.getList());        //適配器的更新        mMyNewsPagerAdapter.notifyDataSetChanged();        //請求頁的索引要加1        ++mCurrentPageIndex;        /* //關(guān)閉SpringView        mSpringView.onFinishFreshAndLoad();*/       }      }     }    }); }

/**  * 3,加載更多  * 注意事項(xiàng):  * 請求成功數(shù)據(jù)更新之后,要關(guān)閉SpringView  */ private void onDealLoadmore() {  mSpringView.onFinishFreshAndLoad();  mNewsPagerProtocol.setCurrentPageIndex(mCurrentPageIndex);  mNewsPagerProtocol.loadData(new NewsPagerProtocol.Callback() {   @Override   public void onError(Call call, Exception e, int id) {    Toast.makeText(mContext, "下拉刷新失敗", Toast.LENGTH_SHORT).show();   }   @Override   public void onResponse(NewsList newsList, int id) {    if (newsList != null) {     //獲取刷新的數(shù)據(jù)集合     List<News> list = newsList.getList();     //健壯性判斷     if (list != null && list.size() > 0) {      //更新數(shù)據(jù)集合      mData.addAll(list);      //更新適配器      mMyNewsPagerAdapter.notifyDataSetChanged();      //更新頁數(shù)的索引值      mCurrentPageIndex ++ ;     }    }   }  }); }

/** * Author:  歸零 * Date:  2017/3/4 1:08 * Email:  4994766@qq.com * Description：網(wǎng)絡(luò)請求和數(shù)據(jù)解析 */public class NewsPagerProtocol { private int mCurrentPageIndex; public void setCurrentPageIndex(int currentPageIndex) {  mCurrentPageIndex = currentPageIndex; } public void loadData(final Callback callback) {  //資訊的網(wǎng)絡(luò)請求地址  String newsUrl = Constant.NEWS_URL;  //http://www.oschina.net/action/api/news_list?pageIndex=0&catalog=1&pageSize=20  //網(wǎng)絡(luò)請求  OkHttpUtils    .get()    .url(newsUrl)    .addParams("pageIndex", mCurrentPageIndex + "")//固定    .addParams("catalog", "1")//固定,1代表資訊    .addParams("pageSize", "20")//因?yàn)?一頁加載20條數(shù)據(jù)    .build()    .execute(new StringCallback() {     @Override     public void onError(Call call, Exception e, int id) {      //因?yàn)榉祷厥√幚淼恼埱蟛灰粯?所以不處理,交給調(diào)用的方法處理      callback.onError(call, e, id);     }     @Override     public void onResponse(String response, int id) {      //請求成功,將字符串轉(zhuǎn)為javaBean,并獲取里面的泛型為News的集合      NewsList newsList = XmlUtils.toBean(NewsList.class, response.getBytes());      //將轉(zhuǎn)換后的數(shù)據(jù)通過接口回調(diào),返回給調(diào)用方法的      callback.onResponse(newsList, id);     }    }); } public interface Callback {  public void onError(Call call, Exception e, int id);  public void onResponse(NewsList newsList, int id); }}