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activity_main<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_main"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.bawei.lss_zonghe.MainActivity"    android:orientation="vertical"    >    //用来放置轮播图片的控件    <android.support.v4.view.ViewPager        android:id="@+id/vp"        android:layout_width="wrap_content"        android:layout_height="500dp"        />    //用来放置圆点控件的布局    <LinearLayout        android:layout_width="match_parent"        android:layout_height="40dp"        android:layout_alignParentBottom="true"        android:gravity="center"        android:id="@+id/ll"        android:orientation="horizontal"></LinearLayout>     //点击进入主页的控件    <Button        android:id="@+id/but"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="点击进入主页"        /></LinearLayout>=======================================item_test<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    //放置点的控件    <View        android:id="@+id/dot"        android:layout_width="8dp"        android:layout_height="8dp"        android:layout_margin="3dp"        android:background="@drawable/dot_normal"/></LinearLayout>======================================= MainActivitypublic class MainActivity extends AppCompatActivity {    private Button but;    private ViewPager vp;    private LinearLayout ll;    //轮播页数的变量    private int i;    //业    private int curren = 0;    //点    private int old_dot = 0;    //点的集合    private ArrayList<View> dolist = new ArrayList<View>();    //接受    Handler handler = new Handler() {        public void handleMessage(Message msg) {            //页            vp.setCurrentItem(msg.what);//点           dolist.get(old_dot).setBackgroundResource(R.drawable.dot_normal);            dolist.get(msg.what%dolist.size()).setBackgroundResource(R.drawable.dot_focused);            old_dot=msg.what%dolist.size();        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        but = (Button) findViewById(R.id.but);        vp = (ViewPager) findViewById(R.id.vp);        ll = (LinearLayout) findViewById(R.id.ll);        //开始解析获取轮播所需要的图片（）        new AsyncTask<String,Integer,String>(){            @Override            protected String doInBackground(String... params) {                String s=params[0];                String str=new MyNet().getJsonByUrlConnection(s);                return str;            }            @Override            protected void onPostExecute(String s) {                super.onPostExecute(s);                One one = new Gson().fromJson(s, One.class);                ArrayList<Newslist> newslist = one.getNewslist();                //开始添加适配器PagerAdapter                Myadapter myadapter = new Myadapter(MainActivity.this, newslist);                vp.setAdapter(myadapter);                //页                vp.setCurrentItem(1000 * newslist.size());                //点                for (int j = 0; newslist.size() > j; j++) {                    View view = LayoutInflater.from(MainActivity.this).inflate(R.layout.item_test, null);                    View dot = view.findViewById(R.id.dot);                    dolist.add(dot);                    ll.addView(view);                }  //聚焦              dolist.get(0).setBackgroundResource(R.drawable.dot_focused);                //页                i = vp.getCurrentItem();                //线程设置自动无线轮播                new Thread() {                    public void run() {                        while (true) {                            try {                                sleep(2000);                                Message obtain = Message.obtain();                                obtain.what = i++;                                handler.sendMessage(obtain);                            } catch (InterruptedException e) {                                e.printStackTrace();                            }                        }                    }                }.start();            }        }.execute(MyURL.JSONURL);        //点击进入主页面     but.setOnClickListener(new View.OnClickListener() {         @Override         public void onClick(View v) {             //跳转             Intent intent = new Intent(MainActivity.this,TowActivity.class);             startActivity(intent);         }     });    }}=============================== MyURLpublic class MyURL {    public static final String            JSONURL="https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10 ";}=======================================//封装对象哦=======================================MyNetpublic class MyNet {    public String getJsonByUrlConnection(String jsonrul){       String str="";        URL url;        HttpURLConnection httpURLConnection;        InputStream inputStream;        try {             url = new URL(jsonrul);            httpURLConnection= (HttpURLConnection) url.openConnection();            int responseCode = httpURLConnection.getResponseCode();            if(responseCode==200){                inputStream = httpURLConnection.getInputStream();                byte[] bytes = new byte[1024];                int len=0;                while((len=inputStream.read(bytes))!=-1){                   str+=new String(bytes,0,len);                }            }        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return str;    }}======================================= MyApplictionpublic class MyAppliction extends Application{    @Override    public void onCreate() {        super.onCreate();        ImageLoaderConfiguration configuration = ImageLoaderConfiguration.createDefault(this);        ImageLoader.getInstance().init(configuration);    }}=======================================网络权限哦===============================Myadapterpublic class Myadapter extends PagerAdapter{    private Context context;    private ArrayList<Newslist> newslist;    public Myadapter(Context context, ArrayList<Newslist> newslists) {        this.context = context;        this.newslist = newslists;    }    @Override    public int getCount() {        return Integer.MAX_VALUE;    }    @Override    public boolean isViewFromObject(View view, Object object) {        return view==object;    }    @Override    public Object instantiateItem(ViewGroup container, int position) {        ImageView imageView = new ImageView(context);        ImageLoader.getInstance().displayImage(newslist.get(position%newslist.size()).getPicUrl(),imageView);        container.addView(imageView);        return imageView;    }    @Override    public void destroyItem(ViewGroup container, int position, Object object) {        //注意！！！        container.removeView((View) object);    }}===============================<?xml version="1.0" encoding="utf-8"?><android.support.v4.widget.DrawerLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:id="@+id/activity_tow"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.bawei.lss_zonghe.TowActivity"    >    <LinearLayout        android:orientation="vertical"        android:layout_width="wrap_content"        android:layout_height="wrap_content">    <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="match_parent"        android:layout_height="wrap_content"/>    </LinearLayout>    <ListView        android:id="@+id/lv"        android:layout_width="240sp"        android:layout_height="match_parent"        android:layout_gravity="start"        android:choiceMode="singleChoice"        android:divider="#f00"        android:dividerHeight="1dp"        android:background="#fff"        >    </ListView></android.support.v4.widget.DrawerLayout>=============================== TowActivitypublic class TowActivity extends AppCompatActivity {    ArrayList<String> list;    ListView lv;    private DrawerLayout dl;    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 = {            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",            "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10",    };    private LayoutInflater mInflater;    private ArrayList<String> mTitleList = new ArrayList<>();//页卡标题集合    private ArrayList<ChannelFragment> mViewList = new ArrayList<>();//页卡视图集合    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_tow);        lv = (ListView) findViewById(R.id.lv);        list=new ArrayList<>();        for(int i=0;i<10;i++){            list.add("条目"+i);        }        Myadapter3 myadapter3 = new Myadapter3(TowActivity.this,list);        lv.setAdapter(myadapter3);        mViewPager = (ViewPager) findViewById(R.id.vp_view);        mTabLayout = (TabLayout) findViewById(R.id.tabs);        for(int i=0;i<channels.length;i++){            ChannelFragment fragment = new ChannelFragment();            Bundle b = new Bundle();            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 mAdapter = new MyFragmentPagerAdapter(fm, mViewList);        mViewPager.setAdapter(mAdapter);//给ViewPager设置适配器        mTabLayout.setupWithViewPager(mViewPager);//将TabLayout和ViewPager关联起来。        mTabLayout.setTabsFromPagerAdapter(mAdapter);//给Tabs设置适配器    }    class MyFragmentPagerAdapter extends FragmentPagerAdapter {        private ArrayList<ChannelFragment> mViewList;        public MyFragmentPagerAdapter(FragmentManager fm, ArrayList<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        }    }}===============================<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"><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"></com.handmark.pulltorefresh.library.PullToRefreshListView></LinearLayout>===============================<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    >    <ImageView        android:id="@+id/tu"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /><TextView    android:id="@+id/tv"    android:layout_width="wrap_content"    android:layout_height="wrap_content" /></LinearLayout>===============================public class ChannelFragment extends Fragment{    private PullToRefreshListView listView;    private String news_url;    private ArrayList<Newslist> newslist;    One one;    Myadapters  myadapters;    @Override    public void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        Bundle bundle = getArguments();        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.item_test2, null);        listView= (PullToRefreshListView) view.findViewById(R.id.pull_refresh_list);        new AsyncTask<String,Integer,String>(){            @Override            protected String doInBackground(String... params) {                String s=params[0];                String str=new MyNet().getJsonByUrlConnection(s);                return str;            }            @Override            protected void onPostExecute(String s) {                super.onPostExecute(s);                one = new Gson().fromJson(s, One.class);                newslist = one.getNewslist();                for(int i=0;i<newslist.size();i++){                    MySql mysql = new MySql(getActivity());                    mysql.add(newslist.get(i).getPicUrl(),newslist.get(i).getTitle());                }                myadapters = new Myadapters(getActivity(),newslist);                listView.setAdapter(myadapters);            }        }.execute(news_url);        listView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener<ListView>() {            @Override            public void onRefresh(PullToRefreshBase<ListView> refreshView) {                //当下拉刷新，进入此方法                Toast.makeText(getActivity(), "下拉刷新", Toast.LENGTH_SHORT).show();                //加载出的新数据，刷新显示                new AsyncTask<String,Integer,String>(){                    @Override                    protected String doInBackground(String... params) {                        String s=params[0];                        String str=new MyNet().getJsonByUrlConnection(s);                        return str;                    }                    @Override                    protected void onPostExecute(String s) {                        super.onPostExecute(s);                        one = new Gson().fromJson(s, One.class);                        newslist = one.getNewslist();                        myadapters = new Myadapters(getActivity(),newslist);                        listView.setAdapter(myadapters);                        listView.onRefreshComplete();                    }                }.execute(news_url);            }        });        listView.setOnLastItemVisibleListener(new PullToRefreshBase.OnLastItemVisibleListener() {            @Override            public void onLastItemVisible() {                Toast.makeText(getActivity(),"上拉显示出listview的最后一行",Toast.LENGTH_SHORT).show();                new AsyncTask<String,Integer,String>(){                    @Override                    protected String doInBackground(String... params) {                        String s=params[0];                        String str=new MyNet().getJsonByUrlConnection(s);                        return str;                    }                    @Override                    protected void onPostExecute(String s) {                        super.onPostExecute(s);                        //解析json                        one = new Gson().fromJson(s, One.class);                        newslist.addAll(one.getNewslist());                        myadapters.notifyDataSetChanged();                        listView.onRefreshComplete();                    }                }.execute(news_url);            }        });        return view;    }}===============================public class Myadapters extends BaseAdapter{    private Context context;    private ArrayList<Newslist> newslist;    public Myadapters(Context context, ArrayList<Newslist> newslists) {        this.context = context;        this.newslist = newslists;    }    @Override    public int getCount() {        return newslist.size();    }    @Override    public Object getItem(int position) {        return newslist.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ViewHolder holder=null;        if(convertView==null){            convertView=View.inflate(context, R.layout.lv_items, null);            holder=new ViewHolder();            holder.tv=(TextView) convertView.findViewById(R.id.tv);            holder.tu=(ImageView) convertView.findViewById(R.id.tu);            convertView.setTag(holder);        }else{            holder=(ViewHolder) convertView.getTag();        }        String value = newslist.get(position).getTitle();        holder.tv.setText(value);        ImageLoader.getInstance().displayImage(newslist.get(position).getPicUrl(),holder.tu);        return convertView;    }    class ViewHolder{        ImageView tu;        TextView tv;    }}===============================