xUtils3

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添加依赖

compile 'org.xutils:xutils:3.5.0'

main布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent">    <com.bwei.com.toutiao.XListView        android:id="@+id/xlist"        android:dividerHeight="1dp"        android:layout_width="match_parent"        android:layout_height="match_parent"></com.bwei.com.toutiao.XListView></LinearLayout>

public class Fragmeng1 extends Fragment implements XListView.IXListViewListener{    XListView mylist;    List<Frag1Bean.DataBean>list = new ArrayList<>();    MyAdapter adapter;    String path = "http://ic.snssdk.com/2/article/v25/stream/?count=20&min_behot_time=1455521444&bd_city=%E5%8C%97%E4%BA%AC%E5%B8%82";

 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {      View view = View.inflate(getActivity(), R.layout.fragment1,null);        //初始化控件        mylist = (XListView) view.findViewById(R.id.xlist);        //设置加载监听        mylist.setXListViewListener(this);        //设置上拉加载下拉刷新        mylist.setPullLoadEnable(true);        mylist.setPullRefreshEnable(true);        RequestParams params = new RequestParams(path);        x.http().get(params, new Callback.CommonCallback<String>() {            @Override            public void onSuccess(String result) {                Gson gson = new Gson();                Frag1Bean bean = gson.fromJson(result,Frag1Bean.class);                list = bean.data;                adapter = new MyAdapter(getActivity(),list);                mylist.setAdapter(adapter);            }            @Override            public void onError(Throwable ex, boolean isOnCallback) {            }            @Override            public void onCancelled(CancelledException cex) {            }            @Override            public void onFinished() {            }        });        return view;    }    @Override    public void onRefresh() {        list.clear();    mylist.stopLoadMore();        mylist.stopRefresh();    }    @Override    public void onLoadMore() {        mylist.stopLoadMore();        mylist.stopRefresh();        adapter.notifyDataSetChanged();    }}

适配器

public class MyAdapter extends BaseAdapter{    Context context;    List<Frag1Bean.DataBean>list = new ArrayList<>();    ImageLoader loader;    DisplayImageOptions options;    public MyAdapter(Context context, List<Frag1Bean.DataBean> list) {        this.context = context;        this.list = list;        loader = ImageLoader.getInstance();        ImageLoaderConfiguration configuration = ImageLoaderConfiguration.createDefault(context);        loader.init(configuration);        options = new DisplayImageOptions.Builder()                .cacheInMemory(true)                .cacheOnDisk(true)                .displayer(new FadeInBitmapDisplayer(200))                .build();    }    public void addData( List<Frag1Bean.DataBean>list){        this.list.addAll(list);        notifyDataSetChanged();    }    //更新数据；    public void updateData( List<Frag1Bean.DataBean>list){        this.list.clear();        addData(list);    }    @Override    public int getCount() {        return list.size();    }    @Override    public Object getItem(int i) {        return null;    }    @Override    public long getItemId(int i) {        return 0;    }    @Override    public View getView(int i, View view, ViewGroup viewGroup) {            ViewHolder holder;        if (view==null){            holder = new ViewHolder();            view = View.inflate(context,R.layout.frag1_item,null);            holder.abstrac = (TextView) view.findViewById(R.id.abstrac);            holder.img = (ImageView) view.findViewById(R.id.img);            view.setTag(holder);        }else {            holder = (ViewHolder) view.getTag();        }        holder.abstrac.setText(list.get(i).title);        loader.displayImage(list.get(i).source_avatar,holder.img,options);        return view;    }    class ViewHolder{        TextView abstrac;        ImageView img;    }}

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