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

来源：互联网发布：动漫英雄网络剧下载编辑：程序博客网时间：2024/04/27 19:07
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Fragmentpublic 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();            }        });    }    /**     * 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;    }}
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