PullToRefresh 支持刷新ListView丶GridView丶ScrollView和二级列表

首先去网站下载压缩包:

    https://github.com/chrisbanes/Android-PullToRefresh            
        PullTorefreshScrollView中放Listview可能会显示一条数据,这个时候去一个网站看看改改:
http://blog.csdn.net/zhaokaiqiang1992/article/details/38585547
解压后,在其中找到library更名为PullToRefreshLibrary

  点击new按钮 -> import Module.....库文件  导入

              (第一次会报错,这是提示要下载buildTools和sdk,点击错直接下载就好)

   然后把PullToRefreshLibrary  当依赖添加给APP    操作方法

        右击APP  Open  Module settings   选中全类名应用,布局中没有提示....复制布局APP  点击Dependencies   +        

       Module  Dependency   添加完成

//使用方法

     http://www.cnblogs.com/qifengshi/p/5060827.html
     全类名应用,布局中没有提示....复制布局

布局:

<com.handmark.pulltorefresh.library.PullToRefreshListView
xmlns:ptr="http://schemas.android.com/apk/res-auto"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:id="@+id/refresh_list_view"
ptr:ptrDrawable="@drawable/default_ptr_flip"
ptr:ptrAnimationStyle="flip"
ptr:ptrHeaderBackground="#383838"
ptr:ptrHeaderTextColor="#FFFFFF"  >

</com.handmark.pulltorefresh.library.PullToRefreshListView>

代码:
  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        tabLayout = (TabLayout) findViewById(R.id.tl_tab);
        viewPager = (ViewPager) findViewById(R.id.view_pager);

        list = new ArrayList<>();
        list.add("ListView");
        list.add("GridView");
        list.add("ScrollView");

        viewPager.setOffscreenPageLimit(list.size());

        //1.设置适配器
//
        viewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {

            //2.重写方法...返回的是viewPager当前页的标题
            @Override
            public CharSequence getPageTitle(int position) {
                return list.get(position);
            }

            @Override
            public Fragment getItem(int position) {
//0...listView,1...gridView,2..scrollView
                Fragment fragment = null;
                switch (position){
                    case 0:
                        fragment = new FragmentListView();
                        break;
                    case 1:
                        fragment = new FragmentGridView();
                        break;
                    case 2:
                        fragment = new FragmentScrollView();
                        break;
                    default:
                        break;
                }

                return fragment;
            }

            @Override
            public int getCount() {
                return list.size();
            }
        });

        //3.tablayout与viewPager关联使用
        tabLayout.setupWithViewPager(viewPager);
    }

///////////////////////////加载的第一个Fragment

public class FragmentListView extends Fragment {

    private PullToRefreshListView refreshListView;
    private List<DataDataBean.ResultsBean> list = new ArrayList<>();
//记录当前展示的所有数据
    private ListViewAdapter listViewAdapter;
    private int page_num = 1;
    private ILoadingLayout startLabels;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,

 @Nullable Bundle savedInstanceState)
{
        View view = inflater.inflate(
R.layout.fragment_listview_layout,container,false);

        refreshListView = view.findViewById(R.id.refresh_list_view);

        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        //1.设置listView的适配器
        getDataFromNet();

        //2.设置刷新模式
        /*设置pullToRefreshListView的刷新模式，
BOTH代表支持上拉和下拉，PULL_FROM_END代表上拉,PULL_FROM_START代表下拉 */
        refreshListView.setMode(PullToRefreshBase.Mode.BOTH);

        //3.通过getLoadingLayoutProxy
方法来指定上拉和下拉时显示的状态的区别(也就是设置向下拉的时候头部里面显示的文字)
        //此时这里设置的是下拉刷新的时候显示的文字,
所以第一个设置true表示现在是刷新,第二个设置为false
        startLabels = refreshListView.getLoadingLayoutProxy(true, false);
        startLabels.setPullLabel("下拉刷新");
        startLabels.setRefreshingLabel("正在刷新...");
        startLabels.setReleaseLabel("放开刷新");

  ILoadingLayout endLabels = refreshListView.getLoadingLayoutProxy(false, true);
        endLabels.setPullLabel("上拉刷新");
        endLabels.setRefreshingLabel("正在载入...");
        endLabels.setReleaseLabel("放开刷新...");

        //4.设置监听事件
        /**
         * 如果Mode设置成Mode.BOTH，
需要设置刷新Listener为OnRefreshListener2，并实现onPullDownToRefresh()、
         * onPullUpToRefresh()两个方法。
         如果Mode设置成Mode.PULL_FROM_START或Mode.PULL_FROM_END，
需要设置刷新Listener为OnRefreshListener，
         同时实现onRefresh()方法。
         当然也可以设置为OnRefreshListener2，
但是Mode.PULL_FROM_START的时候只调用onPullDownToRefresh()方法，
         Mode.PULL_FROM_END的时候只调用onPullUpToRefresh()方法
         */
        refreshListView.setOnRefreshListener(
new PullToRefreshBase.OnRefreshListener2<ListView>() {
   //下拉刷新的时候调用的方法....请求第一页的数据,清空之前的数据,然后再添加设置适配器
         @Override
    public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
         //下拉刷新....请求第一页的数据,清空之前的数据,然后再添加设置适配器
                getRefreshData();

            }

            //上拉刷新的时候调用的方法..page++,然后在请求数据
            @Override
    public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {

                //上拉刷新/加载...加载的时候页数++
                page_num++;
                getDataFromNet();

         
b82e
   }
        });

    }

    /**
     * 下拉刷新获取数据
     */
    private void getRefreshData() {
        NetDataUtil.getData("http://gank.io/api/data/Android/10/1",
 getActivity(), new JsonCallBack() {
            @Override
            public void getJsonString(String json) {
                //解析
                Gson gson = new Gson();

     DataDataBean dataDataBean = gson.fromJson(json, DataDataBean.class);
                //先清空一下数据
                list.clear();

                //添加到集合的最前边,,,,(0,,,,)
                list.addAll(0,dataDataBean.getResults());

                //设置适配器
                setAdapter();

                //设置适配器之后停止刷新的操作
                refreshListView.onRefreshComplete();

                //可以设置刷新的时间....
                startLabels.setLastUpdatedLabel("上次更新时间:"

+new SimpleDateFormat("HH:mm").format(new Date(System.currentTimeMillis())));
//last最近的,最后一次update修改/更新
            }
        });

    }

    /**
     * 刚开始进入页面获取网络数据....还可以作为上拉加载获取数据的操作
     *
     *
     */
    private void getDataFromNet() {
        //第一个参数是接口,第二个上下文,第三个回调json数据
        NetDataUtil.getData("http://gank.io/api/data/Android/10/"+page_num,
 getActivity(), new JsonCallBack() {
            @Override
            public void getJsonString(String json) {

                //解析
                Gson gson = new Gson();

        DataDataBean dataDataBean = gson.fromJson(json, DataDataBean.class);

                //往后面添加...
                list.addAll(dataDataBean.getResults());

                //设置适配器
                setAdapter();

                //停止刷新
                refreshListView.onRefreshComplete();
            }
        });

    }

    private void setAdapter() {
        if (listViewAdapter == null){
            listViewAdapter = new ListViewAdapter(getActivity(),list);
            refreshListView.setAdapter(listViewAdapter);
        }else {
            listViewAdapter.notifyDataSetChanged();
        }

    }
}

 //////////////////////////适配器

/**
 * @author Dash
 * @date 2017/10/18
 * @description:
 *
 * 多条目加载
 */
public class ListViewAdapter extends BaseAdapter {
    Context context;
    List<DataDataBean.ResultsBean> list;
    private int TEXT_ONLY = 0;
    private int IMAGE_TEXT = 1;

    public ListViewAdapter(Context context, List<DataDataBean.ResultsBean> list) {
        this.context = context;
        this.list = list;
    }

    @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;
    }

    @Override
    public int getViewTypeCount() {//返回有多少种条目的视图
        return 2;
    }

    @Override
    public int getItemViewType(int position) {//返回当前条目视图的类型

        //根据当前位置是否有图片决定,该条目的类型是什么
        if (list.get(position).getImages() != null){
            return IMAGE_TEXT;
        }

        return TEXT_ONLY;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        if (getItemViewType(i) == TEXT_ONLY){
            TextHolder holder;
            if (view == null){
                view = View.inflate(context, R.layout.item_text_layout,null);
                holder = new TextHolder();

                holder.textView = view.findViewById(R.id.text_title);

                view.setTag(holder);

            }else {
                holder = (TextHolder) view.getTag();
            }

            holder.textView.setText(list.get(i).getDesc());

        }else if (getItemViewType(i) == IMAGE_TEXT){

            ImageHolder holder;
            if (view == null){
                view = View.inflate(context, R.layout.item_image_layout,null);
                holder = new ImageHolder();

                holder.textView = view.findViewById(R.id.text_title);
                holder.imageView = view.findViewById(R.id.image_view);

                view.setTag(holder);

            }else {
                holder = (ImageHolder) view.getTag();
            }

            holder.textView.setText(list.get(i).getDesc());
            //设置图片的显示
ImageLoader.getInstance().displayImage(list.get(i).getImages().get(0),
holder.imageView, ImageLoaderUtil.getRoundOption());

        }

        return view;
    }

    private class TextHolder{
        TextView textView;
    }
    private class ImageHolder{
        TextView textView;
        ImageView imageView;
    }
}