TabLayout+PullToRefreshListView连用

首先将TabLayout依赖包导入工程中

compile 'com.android.support:design:24.2.0'

主布局中

      <android.support.design.widget.TabLayout

            android:id="@+id/tabs"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            app:tabIndicatorColor="@color/red"

            app:tabMode="scrollable"

            app:tabSelectedTextColor="@color/red"

            app:tabTextColor="@color/black"/>

        <android.support.v4.view.ViewPager

            android:id="@+id/vp_view"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"/>

Activity中

private TabLayout mTabLayout;

    private ViewPager mViewPager;

    private String[] channels = {"推荐","热点","体育","娱乐","社会","汽车","教育","财经","科技","游戏"};

    private String[] Urls={"http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

            "http://gank.io/api/data/Android/10/1",

    };

    private LayoutInflater mInflater;

    private List<ChannelFragment> mViewList=new ArrayList<>();

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mTabLayout = (TabLayout) findViewById(R.id.tabs);

        mViewPager = (ViewPager) findViewById(R.id.vp_view);

        mInflater = LayoutInflater.from(this);

        for (int i = 0; i < channels.length; i++) {

            //创建栏目的fragment

            ChannelFragment fragment = new ChannelFragment();

            Bundle b = new Bundle();

            b.putString("name", channels[i]);//传递名字

            b.putString("url", Urls[i]);

            fragment.setArguments(b);

            //收集fragment

            mViewList.add(fragment);

            //给tablayout添加tab选项卡

            mTabLayout.addTab(mTabLayout.newTab().setText(channels[i]));//添加tab选项卡

        }

        FragmentManager fm = getSupportFragmentManager();

        MyFragmentPagerAdapter adapter=new MyFragmentPagerAdapter(fm,mViewList);

        mViewPager.setAdapter(adapter);//关联适配器

        mTabLayout.setupWithViewPager(mViewPager);//将Tablayout与Viewpager建立连接

    }

    class MyFragmentPagerAdapter extends FragmentPagerAdapter {

        private List<ChannelFragment> mViewList;

        public MyFragmentPagerAdapter(FragmentManager fm, List<ChannelFragment> mViewList) {

            super(fm);

            this.mViewList = mViewList;

        }

        @Override

        public Fragment getItem(int position) {

            return mViewList.get(position);

        }

        @Override

        public int getCount() {

            return mViewList.size();

        }

        @Override

        public CharSequence getPageTitle(int position) {

            return channels[position];//页卡标题

        }

    }

创建一个Fragment类继承Fragment,注意创建的Fragment当然不能叫Fragment

public class ChannelFragment extends Fragment{

    private String name;

    private String news_url;

    private PullToRefreshListView pullToRefreshListView;

    private  List<User.ResultsBean> results;

    private  PullOnRefreshAdapter adapter;

    @Override

    public void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        //接受传过来的值

        Bundle bundle = getArguments();

        name = (String) bundle.get("name");

        news_url = (String) bundle.get("url");

    }

    @Nullable

    @Override

    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

        View view=inflater.inflate(R.layout.fragment,null);

        //获取资源ID

        pullToRefreshListView=(PullToRefreshListView) view.findViewById(R.id.pull_refresh_list);

        pullToRefreshData();

        //刷新

        pullToRefreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener<ListView>() {

            @Override

            public void onRefresh(PullToRefreshBase<ListView> refreshView) {

                pullToRefreshData();

            }

        });

        //加载

        pullToRef
b593
reshListView.setOnLastItemVisibleListener(new PullToRefreshBase.OnLastItemVisibleListener() {

            @Override

            public void onLastItemVisible() {

                LoadMoreData();

            }

        });

        return view;

    }

    //刷新

    public void pullToRefreshData(){

        new AsyncTask<String,Integer,String>(){

            @Override

            protected String doInBackground(String... strings) {

                //解析

                String str=new NetWorksUtils().getJsonUrlJiexi(news_url+"1");

                return str;

            }

            @Override

            protected void onPostExecute(String s) {

                super.onPostExecute(s);

                Gson gson = new Gson();

                User user = gson.fromJson(s, User.class);

                results = user.getResults();

                //关联适配器

                adapter=new PullOnRefreshAdapter(results,getActivity());

                pullToRefreshListView.setAdapter(adapter);

                //停止刷新

                pullToRefreshListView.onRefreshComplete();

            }

        }.execute(news_url);

    }

//加载

    public void LoadMoreData(){

        new AsyncTask<String,Integer,String>(){

            @Override

            protected String doInBackground(String... strings) {

               //解析

                String str=new NetWorksUtils().getJsonUrlJiexi(news_url+"1");

                return str;

            }

            @Override

            protected void onPostExecute(String s) {

                super.onPostExecute(s);

                Gson gson = new Gson();

                User user = gson.fromJson(s, User.class);

                //新集合

                List<User.ResultsBean> results2 = user.getResults();

                //上拉添加一遍

                results.addAll(results2);

                //刷新适配器

                adapter.notifyDataSetChanged();

           }

        }.execute(news_url);

    }

}

fragment布局中写PullToRefreshListView

<com.handmark.pulltorefresh.library.PullToRefreshListView

        xmlns:ptr="http://schemas.android.com/apk/res-auto"

        android:id="@+id/pull_refresh_list"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:cacheColorHint="#000000"

        android:divider="#19000000"

        android:dividerHeight="4dp"

        android:fadingEdge="none"

        android:fastScrollEnabled="false"

        android:footerDividersEnabled="false"

        android:headerDividersEnabled="false"

        android:smoothScrollbar="true"

        ptr:ptrAnimationStyle="rotate"

        ptr:ptrHeaderTextColor="#ffffff"

        ptr:ptrHeaderSubTextColor="#00ffff"

        ptr:ptrHeaderBackground="@null"

        ptr:ptrDrawable="@mipmap/ic_launcher"/>

创建要解析的Json串的类进行封装，接着创建一个工具类

public class NetWorksUtils {

    //解析的方法

    public String getJsonUrlJiexi(String jsonStr){

        URL url=null;

        HttpURLConnection httpURLConnection=null;

        String JsonUrl="";

        try {

            //进行网络解析

            url=new URL(jsonStr);

            httpURLConnection= (HttpURLConnection) url.openConnection();

            httpURLConnection.setConnectTimeout(5000);

            httpURLConnection.setReadTimeout(5000);

            //获取响应码

            int responseCode = httpURLConnection.getResponseCode();

            if (responseCode==200){

                InputStream inputStream = httpURLConnection.getInputStream();

                byte[] bytes = new byte[1024];

                int i=0;

                while ((i=inputStream.read(bytes))!=-1){

                    JsonUrl +=new String(bytes,0,i);

                }

            }

        } catch (MalformedURLException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

        return JsonUrl;

    }

}

创建适配器MyAdapter:

private List<DataBean.DataBea> list;

    private Context context;

    private LayoutInflater inflater;

    public MyAdapter(List<DataBean.DataBea> list, Context context) {

        this.list = list;

        this.context = context;

        inflater = LayoutInflater.from(context);

    }

    @Override

    public int getCount() {

        return list.size();

    }

    @Override

    public Object getItem(int position) {

        return list.get(position);

    }

    @Override

    public long getItemId(int position) {

        return position;

    }

    @Override

    public int getViewTypeCount() {

        return 2;

    }

    @Override

    public int getItemViewType(int position) {

        int rs = 0;

        if(position%2==0){

            rs = 0;

        }else if(position%2==1){

            rs = 1;

        }

        return rs;

    }

    @Override

    public View getView(int position, View convertView, ViewGroup parent) {

        int rs = getItemViewType(position);

        ViewHoder1 hoder1;

        ViewHoder2 hoder2;

        if(rs==0){

            if(convertView==null){

                hoder1 = new ViewHoder1();

                convertView = inflater.inflate(R.layout.item1, null);

                hoder1.image = (ImageView) convertView.findViewById(R.id.image);

                hoder1.tv1 = (TextView) convertView.findViewById(R.id.tv1);

                convertView.setTag(hoder1);

            }else{

                hoder1 = (ViewHoder1) convertView.getTag();

            }

            ImageLoader.getInstance().displayImage(list.get(position).getImg(),hoder1.image);

            hoder1.tv1.setText(list.get(position).getUserAge()+"\n"+list.get(position).getTopTime()+"\n"+

                    list.get(position).getRecommend()+"\n"+list.get(position).getUrl()+"\n"+

                    list.get(position).getCreateTime()+"\n"+list.get(position).getHxKey()+"\n"+

                    list.get(position).getYulin()+"\n"+list.get(position).getStar()+"\n"+

                    list.get(position).getTitle()+"\n"+list.get(position).getOccupation()+"\n"+

                    list.get(position).getImpressEditId()+"\n"+list.get(position).getImpressType()+"\n"+

                    list.get(position).getReplyTimes()+"\n"+list.get(position).getRemark()+"\n"+

                    list.get(position).getClick()+"\n"+list.get(position).getIntroduction()+"\n"+

                    list.get(position).getSource()+"\n"+list.get(position).getUserName()+"\n"+

                    list.get(position).getReporter()+"\n"+list.get(position).getStatus()+"\n"+

                    list.get(position).getContent());

        }else if(rs==1){

            if(convertView==null){

                hoder2 = new ViewHoder2();

                convertView = inflater.inflate(R.layout.item2, null);

                hoder2.tv2 = (TextView) convertView.findViewById(R.id.tv2);

                convertView.setTag(hoder2);

            }else{

                hoder2 = (ViewHoder2) convertView.getTag();

            }

            hoder2.tv2.setText(list.get(position).getUserAge()+"\n"+list.get(position).getTopTime()+"\n"+

                    list.get(position).getRecommend()+"\n"+list.get(position).getUrl()+"\n"+

                    list.get(position).getCreateTime()+"\n"+list.get(position).getHxKey()+"\n"+

                    list.get(position).getYulin()+"\n"+list.get(position).getStar()+"\n"+

                    list.get(position).getTitle()+"\n"+list.get(position).getOccupation()+"\n"+

                    list.get(position).getImpressEditId()+"\n"+list.get(position).getImpressType()+"\n"+

                    list.get(position).getReplyTimes()+"\n"+list.get(position).getRemark()+"\n"+

                    list.get(position).getClick()+"\n"+list.get(position).getIntroduction()+"\n"+

                    list.get(position).getSource()+"\n"+list.get(position).getUserName()+"\n"+

                    list.get(position).getReporter()+"\n"+list.get(position).getStatus()+"\n"+

                    list.get(position).getContent());

        }

        return convertView;

    }

    class ViewHoder1{

        ImageView image;

        TextView tv1;

    }

    class ViewHoder2{

        TextView tv2;

    }

给PIllToRefreshListView加优化需要在写俩个子布局

第一个

<ImageView

    android:id="@+id/image"

    android:layout_width="60dp"

    android:layout_height="60dp" />

    <TextView

        android:id="@+id/text"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" />

第二个

<TextView

    android:id="@+id/text2"

    android:layout_width="match_parent"

    android:layout_height="wrap_content" />

在创建一个类用来网络加载图片

public class MyApp extends Application{

    @Override

    public void onCreate() {

        super.onCreate();

        //默认加载图片

        ImageLoaderConfiguration configuration=ImageLoaderConfiguration.createDefault(this);

        ImageLoader.getInstance().init(configuration);

    }

}