引导页+上下拉刷新+轮播图

其他 2019-01-19 09:30:56 阅读次数: 0

需要导入的依赖：
implementation ‘com.android.support:design:28+’
implementation ‘com.github.userswlwork:pull-to-refresh:1.0.0’
compile ‘com.nostra13.universalimageloader:universal-image-loader:1.9.5’
implementation ‘com.google.code.gson:gson:2.8.5’
implementation project(’:xlistviewlibrary’)
implementation ‘com.recker.flybanner:flybanner:1.3’
**main.xml布局文件 **

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android=“http://schemas.android.com/apk/res/android”
xmlns:tools=“http://schemas.android.com/tools”
android:layout_width=“match_parent”
android:layout_height=“match_parent”
android:orientation=“vertical”
android:background="@mipmap/a"

tools:context=".MainActivity">

<TextView
    android:id="@+id/mTime"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="48dp"
    android:text="5秒"
    android:textColor="#fff"
    android:textSize="30sp" />
**MainActivity.java**

import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

private TextView textView;
private int time =5;
private Handler handler =new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
time–;
textView.setText(time+“秒”);
if (time==0){

           startActivity(new Intent(MainActivity.this,TwoActivity.class));
           finish();
           handler.removeMessages(0);
      }
    handler.sendEmptyMessageDelayed(0,1000);
}

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

      textView = findViewById(R.id.mTime);

       handler.sendEmptyMessageDelayed(0,1000);
}

}
activity_two.xml布局文件

<?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”
android:layout_width=“match_parent”
android:id="@+id/drawer"
android:orientation=“vertical”
android:layout_height=“match_parent”
tools:context=".TwoActivity">

    <android.support.v4.view.ViewPager
        android:id="@+id/viewPage"
        android:layout_weight="7"
        android:layout_width="match_parent"
        android:layout_height="0dp">

    </android.support.v4.view.ViewPager>
    <RadioGroup
        android:id="@+id/group"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:orientation="horizontal"
        android:layout_weight="1">

        <RadioButton
            android:id="@+id/btu1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:button="@null"
            android:text="首页"
            android:background="@drawable/selector"
            android:gravity="center"
            android:padding="10dp"
            android:layout_weight="1"/>
        <RadioButton
            android:id="@+id/btu2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:button="@null"
            android:text="其他"
            android:background="@drawable/selector"
            android:gravity="center"
            android:padding="10dp"
            android:layout_weight="1"/>
        <RadioButton
            android:id="@+id/btu3"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:button="@null"
            android:text="我的"
            android:background="@drawable/selector"
            android:gravity="center"
            android:padding="10dp"
            android:layout_weight="1"/>
    </RadioGroup>
</LinearLayout>
<LinearLayout
    android:orientation="vertical"
    android:layout_gravity="start"
    android:background="@mipmap/m"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/imageview"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:background="@mipmap/ic_launcher"/>

    <ListView
        android:id="@+id/list_text"
        android:layout_width="150dp"
        android:layout_height="match_parent"
        android:background="#00f">

    </ListView>
</LinearLayout>

</android.support.v4.widget.DrawerLayout>
TwoActivity.java
package bawei.com.yuekaodemo1;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.Gravity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RadioGroup;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

import bawei.com.yuekaodemo1.fragment.FragmnetOne;
import bawei.com.yuekaodemo1.fragment.FragmnetThree;
import bawei.com.yuekaodemo1.fragment.FragmnetTwo;

public class TwoActivity extends AppCompatActivity {
private ViewPager viewPager;
private RadioGroup group;
private ArrayList list = new ArrayList<>();
private DrawerLayout drawerLayout;
private ListView listView;
private ImageView imageView;

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

    drawerLayout = findViewById(R.id.drawer);
    listView = findViewById(R.id.list_text);
    imageView = findViewById(R.id.imageview);

    viewPager = findViewById(R.id.viewPage);
    group = findViewById(R.id.group);
    group.check(group.getChildAt(0).getId());
    drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
        @Override
        public void onDrawerSlide(@NonNull View view, float v) {

        }

        @Override
        public void onDrawerOpened(@NonNull View view) {
            Toast.makeText(TwoActivity.this,"已被打开",Toast.LENGTH_LONG).show();
        }

        @Override
        public void onDrawerClosed(@NonNull View view) {
            Toast.makeText(TwoActivity.this,"已被关闭",Toast.LENGTH_LONG).show();
        }

        @Override
        public void onDrawerStateChanged(int i) {

        }
    });

    imageView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            drawerLayout.closeDrawer(Gravity.START);
        }
    });

                list.add(new FragmnetOne());
                list.add(new FragmnetTwo());
                list.add(new FragmnetThree());
    viewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
        @Override
        public Fragment getItem(int i) {
            return list.get(i);
        }

        @Override
        public int getCount() {
            return list.size();
        }
    });
    group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {

            switch (checkedId){
                case R.id.btu1:
                    viewPager.setCurrentItem(0);
                    break;
                case R.id.btu2:
                    viewPager.setCurrentItem(1);
                    break;
                case R.id.btu3:
                    viewPager.setCurrentItem(2);
                    break;
            }
        }
    });

    viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int i, float v, int i1) {

        }

        @Override
        public void onPageSelected(int i) {
            group.check(group.getChildAt(i).getId());
        }

        @Override
        public void onPageScrollStateChanged(int i) {

        }
    });



    final List<String> list_text = new ArrayList<>();
    list_text.add("首页");
    list_text.add("我的");
    list_text.add("视频");
    list_text.add("新闻");
    list_text.add("热点");

    listView.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,list_text));

    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            viewPager.setCurrentItem(position);

            drawerLayout.closeDrawers();
        }
    });
}

}
NetWord.java
package bawei.com.yuekaodemo1.netword;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

public class NetWord {
public static boolean isconnection(Context context){
if (context!=null){
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if (networkInfo != null) {
return networkInfo.isConnected();
}
}
return false;

}

}
Mapp.java图片框架
package bawei.com.yuekaodemo1.app;

import android.app.Application;
import android.os.Environment;

import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiskCache;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;

import java.io.File;

public class Mapp extends Application {

File file = new File(Environment.getExternalStorageDirectory()+"/"+"image");
@Override
public void onCreate() {
    super.onCreate();

    ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(this)
            .diskCache(new UnlimitedDiskCache(file))
            .build();

       ImageLoader imageLoader = ImageLoader.getInstance();

         imageLoader.init(configuration);
       // ImageLoader.getInstance().init(configuration);
}

}
MySQlite创建数据库
package bawei.com.yuekaodemo1.sqlite;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class MySQlite extends SQLiteOpenHelper {
public MySQlite(Context context) {
super(context, “User.db”, null, 1);
}

@Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL("create table user(id integer primary key autoincrement," +
            "url text," +
            "jsonData text)");

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

}

}
userDao.java
package bawei.com.yuekaodemo1.dao;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

import bawei.com.yuekaodemo1.sqlite.MySQlite;

public class UserDao {

      private SQLiteDatabase database;

      public UserDao(Context context){

          MySQlite mySQlite = new MySQlite(context);
          database = mySQlite.getWritableDatabase();
      }
//插入的方法
public void add(String url, String data) {
    //先删除相同url地址的数据
    database.delete("user","url=?",new String[]{url});
    ContentValues values = new ContentValues();
    values.put("url", url);//k值一定是数据库的字段值
    values.put("jsonData", data);
    //返回行号
    database.insert("user", null, values);
}
//查询
public String queryData(String url){
    String data="";
    Cursor cursor = database.query("user", null, "url=?", new String[]{url}, null, null, null);
    while (cursor.moveToNext()){
        //获得jsonData字段的内容
        data= cursor.getString(cursor.getColumnIndex("jsonData"));
    }
    return data;
}

}
bean.java
package bawei.com.yuekaodemo1.bean;

import java.util.List;

public class Goods {

private int status;
private String info;
private List<DataBean> data;

public int getStatus() {
    return status;
}

public void setStatus(int status) {
    this.status = status;
}

public String getInfo() {
    return info;
}

public void setInfo(String info) {
    this.info = info;
}

public List<DataBean> getData() {
    return data;
}

public void setData(List<DataBean> data) {
    this.data = data;
}

public static class DataBean {
    

    private String news_id;
    private String news_title;
    private String news_summary;
    private String pic_url;

    public DataBean(String data, Object o) {
    }

    public String getNews_id() {
        return news_id;
    }

    public void setNews_id(String news_id) {
        this.news_id = news_id;
    }

    public String getNews_title() {
        return news_title;
    }

    public void setNews_title(String news_title) {
        this.news_title = news_title;
    }

    public String getNews_summary() {
        return news_summary;
    }

    public void setNews_summary(String news_summary) {
        this.news_summary = news_summary;
    }

    public String getPic_url() {
        return pic_url;
    }

    public void setPic_url(String pic_url) {
        this.pic_url = pic_url;
    }
}

}
MyAdapter适配器
package bawei.com.yuekaodemo1.adapter;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.List;

import bawei.com.yuekaodemo1.R;
import bawei.com.yuekaodemo1.bean.Goods;

public class MyAdapter extends BaseAdapter {

private ImageLoader imageLoader = ImageLoader.getInstance();
private List<Goods.DataBean> list ;
private Context context;

public MyAdapter(List<Goods.DataBean> list, Context context) {
    this.list = list;
    this.context = 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) {
    return position%2;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    int itemViewType = getItemViewType(position);
    switch (itemViewType){
        case 0:
            ViewHolder1 viewHolder1 = new ViewHolder1();
            if (convertView == null){

                convertView = View.inflate(context ,R.layout.mybase1,null);

                viewHolder1.textView =convertView.findViewById(R.id.textView);
                viewHolder1.imageView = convertView.findViewById(R.id.imageView);
                convertView.setTag(viewHolder1);
            }else {
                viewHolder1= (ViewHolder1) convertView.getTag();
            }

            viewHolder1.textView.setText(list.get(position).getNews_title());
            imageLoader.displayImage(list.get(position).getPic_url(),viewHolder1.imageView);
            break;



        case 1:

            ViewHolder2 viewHolder2 = new ViewHolder2();
            if(convertView == null){

                convertView = View.inflate(context,R.layout.mybase2,null);

                viewHolder2.tv1 = convertView.findViewById(R.id.tv1);

                convertView.setTag(viewHolder2);
            }else{
                viewHolder2 = (ViewHolder2) convertView.getTag();
            }
            viewHolder2.tv1.setText(list.get(position).getNews_title());

            break;
    }
    return convertView;
}
class ViewHolder1{

    ImageView imageView;
    TextView textView;
}

class ViewHolder2{
    TextView tv1;
}

}
mybase1.xml布局文件

LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:layout_height=“match_parent”>

          <ImageView
              android:id="@+id/imageView"
              android:layout_marginTop="20dp"
              android:layout_width="100dp"
              android:layout_height="100dp"
              android:background="@mipmap/ic_launcher"/>

              <TextView
                  android:id="@+id/textView"
                  android:textColor="@color/colorAccent"
                  android:textSize="22dip"
                  android:singleLine="true"
                  android:ellipsize="marquee"
                  android:focusable="true"
                  android:focusableInTouchMode="true"
                  android:scrollHorizontally="true"
                  android:marqueeRepeatLimit="marquee_forever"
                  android:layout_centerHorizontal="true"
                  android:layout_centerVertical="true"
                  android:layout_marginTop="20dp"

                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                   android:text="1111111111111"/>
**mybase2.xm布局文件l**

LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:layout_height=“match_parent”>
TextView
android:id="@+id/tv1"
android:ellipsize=“marquee”
android:focusable=“true”
android:focusableInTouchMode=“true”
android:singleLine=“true”
android:layout_width=“wrap_content”
android:textColor="#fff"
android:textSize=“26sp”
android:layout_height=“wrap_content” />

FragmnetOne.java
package bawei.com.yuekaodemo1.fragment;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import java.util.ArrayList;

import bawei.com.yuekaodemo1.R;

public class FragmnetOne extends Fragment {
private TabLayout tabLayout;
private ViewPager viewPager;
private MpagerAdapter mpagerAdapter;
ArrayList list =new ArrayList();
ArrayList titlelist = new ArrayList();
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragmentone, container, false);
tabLayout = view.findViewById(R.id.tablayout);
viewPager = view.findViewById(R.id.page);
initData();
MpagerAdapter mpagerAdapter = new MpagerAdapter(getChildFragmentManager());

    viewPager.setAdapter(mpagerAdapter);
    tabLayout.setupWithViewPager(viewPager);
    return view;
}
private void initData() {
    for (int i=0;i<3;i++){
        list.add(new Fragmnet1());
        list.add(new Fragmnet2());
        list.add(new Fragmnet3());
        titlelist.add("主题"+i);
    }
}

private  class MpagerAdapter extends FragmentPagerAdapter {

    public MpagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int i) {
        return list.get(i);
    }

    @Override
    public int getCount() {
        return 3;
    }

    @Nullable
    @Override
    public CharSequence getPageTitle(int position) {
        return titlelist.get(position);
    }
}

}
fragmentone.xml
?xml version=“1.0” encoding=“utf-8”?>
LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:background="@mipmap/b"
android:orientation=“vertical”
android:layout_height=“match_parent”>

           <android.support.design.widget.TabLayout
               android:id="@+id/tablayout"
               android:layout_width="match_parent"
               android:layout_height="wrap_content">

           </android.support.design.widget.TabLayout>
         <android.support.v4.view.ViewPager
             android:id="@+id/page"
             android:layout_width="match_parent"
             android:layout_height="0dp"
             android:layout_weight="1">

         </android.support.v4.view.ViewPager>
**fragmenttwo.xml**

LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:background="@mipmap/c"
android:layout_height=“match_parent”>
<com.recker.flybanner.FlyBanner
android:id="@+id/banner"
android:layout_width=“match_parent”
android:layout_height=“450dp”>

</com.recker.flybanner.FlyBanner>
**FragmnetTwo.java**

package bawei.com.yuekaodemo1.fragment;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.recker.flybanner.FlyBanner;

import java.util.ArrayList;
import java.util.List;

import bawei.com.yuekaodemo1.R;

public class FragmnetTwo extends Fragment {
private FlyBanner flyBanner;
//有地址是为了得到地址里面的图片地址（使用HiJson查看）
private String path = “http://api.expoon.com/AppNews/getNewsList/type/1/p/1”;

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragmenttwo, container, false);
    //获取资源ID
    flyBanner = view.findViewById(R.id.banner);
    return view;
}

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

    //网络的
    List<String> list=new ArrayList<>();
    list.add("http://f.expoon.com/sub/news/2016/01/21/887844_230x162_0.jpg");
    list.add("http://f.expoon.com/sub/news/2016/01/21/580828_230x162_0.jpg");
    list.add("http://f.expoon.com/sub/news/2016/01/21/745921_230x162_0.jpg");
    flyBanner.setImagesUrl(list);

    //本地图片
    List<Integer> lists = new ArrayList<>();
    lists.add(R.mipmap.b);
    lists.add(R.mipmap.c);
    lists.add(R.mipmap.d);
    flyBanner.setImages(lists);


}

}
fragmentthree.xml

<?xml version="1.0" encoding="utf-8"?>

RelativeLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:background="@mipmap/d"
android:layout_height=“match_parent”

/RelativeLayout>
FragmnetThree.java
package bawei.com.yuekaodemo1.fragment;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import bawei.com.yuekaodemo1.R;

public class FragmnetThree extends Fragment {

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragmentthree, container, false);
    return view;
}

}
fragment1.xml

<?xml version="1.0" encoding="utf-8"?>

LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:background="@mipmap/m"
android:layout_height=“match_parent”>
<com.handmark.pulltorefresh.library.PullToRefreshListView
android:id="@+id/pv"
android:layout_width=“match_parent”
android:layout_height=“match_parent”>

  </com.handmark.pulltorefresh.library.PullToRefreshListView>
**Fragmnet1.java**

package bawei.com.yuekaodemo1.fragment;
import android.content.ContentValues;
import android.database.Cursor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.Toast;

import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import bawei.com.yuekaodemo1.R;
import bawei.com.yuekaodemo1.adapter.MyAdapter;
import bawei.com.yuekaodemo1.bean.Goods;
import bawei.com.yuekaodemo1.dao.UserDao;
import bawei.com.yuekaodemo1.netword.NetWord;

public class Fragmnet1 extends Fragment {
private String url =“http://api.expoon.com/AppNews/getNewsList/type/1/p/1”;
private PullToRefreshListView pullToRefreshListView;
private int page;
List<Goods.DataBean> list = new ArrayList<>();
private UserDao dao;
private MyAdapter myAdapter;

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment1, container, false);

    dao = new UserDao(getActivity());

    pullToRefreshListView = view.findViewById(R.id.pv);
    return view;
}

@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    //初始化
    initpv();
    //请求网络
    data(page);
     
}

private void data(int page) {
    //调用网络判断
    boolean connection = NetWord.isconnection(getActivity());
    if(connection){//有网
        String urls=url+page;
        new MyTask().execute(urls);
    }else {
        //没有网
        Toast.makeText(getActivity(),"请检查网络再试",Toast.LENGTH_LONG).show();
        //根据url地址。从数据库中获取数据
        String jsonData = dao.queryData(url);//调取数据库查询的方法
        if (!"".equals(jsonData)){
            //解析gson
            Gson gson=new Gson();
            Goods myBean = gson.fromJson(jsonData, Goods.class);
            List<Goods.DataBean> data = myBean.getData();
            list.addAll(data);
            getAdapter();
            //关闭上下拉刷新
            pullToRefreshListView.onRefreshComplete();
        }
    }
}
class MyTask extends AsyncTask<String ,Void,String> {

    @Override
    protected String doInBackground(String... strings) {
        String str="";
        try {
            URL url=new URL(strings[0]);
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setReadTimeout(1000);
            urlConnection.setConnectTimeout(1000);
            urlConnection.setRequestMethod("GET");
            if(urlConnection.getResponseCode()==200){
                InputStream inputStream = urlConnection.getInputStream();
                str = getdata(inputStream);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return str;
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
        //将请求下来的json数据缓存在数据库中
        dao.add(url,s);
        Gson gson=new Gson();
        Goods myBean = gson.fromJson(s, Goods.class);
        List<Goods.DataBean> data = myBean.getData();
        list.addAll(data);
         getAdapter();
        //关闭上下拉刷新
        pullToRefreshListView.onRefreshComplete();
    }
}
private void initpv() {
    
    pullToRefreshListView.setMode(PullToRefreshBase.Mode.BOTH);
    pullToRefreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
        @Override
        public void onPullDownToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
            list.clear();
            data(page);
        }

        @Override
        public void onPullUpToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
            page++;
            data(page);

        }
    });
}
public void getAdapter(){
    myAdapter= new MyAdapter(list,getActivity());
    pullToRefreshListView.setAdapter(myAdapter);
    myAdapter.notifyDataSetChanged();
}
public String getdata(InputStream stream){

    StringBuilder stringBuilder = new StringBuilder();
    BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
    String  tamp ;
    try {
        while ((tamp=reader.readLine())!=null){
            stringBuilder.append(tamp);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return stringBuilder.toString();
}

}
fragment2.xml

<?xml version="1.0" encoding="utf-8"?>

RelativeLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:background="@mipmap/b"
android:layout_height=“match_parent”>
<com.bwie.xlistviewlibrary.view.XListView
android:id="@+id/xlv"
android:layout_width=“match_parent”
android:layout_height=“match_parent”
>

</com.bwie.xlistviewlibrary.view.XListView>
**Fragmnet2.java**

package bawei.com.yuekaodemo1.fragment;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.bwie.xlistviewlibrary.utils.NetWordUtils;
import com.bwie.xlistviewlibrary.view.XListView;
import com.google.gson.Gson;
import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.ArrayList;
import java.util.List;

import bawei.com.yuekaodemo1.R;
import bawei.com.yuekaodemo1.bean.Goods;
import bawei.com.yuekaodemo1.dao.UserDao;
import bawei.com.yuekaodemo1.netword.NetWord;

public class Fragmnet2 extends Fragment {
String url = “http://api.expoon.com/AppNews/getNewsList/type/1/p/1”;
int page;
private XListView xListView;
List<Goods.DataBean> list = new ArrayList<>(); //大集合
private MAdapter mAdapter;
private ImageLoader imageLoaderInstances;
private UserDao dao;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment2, container, false);
xListView = view.findViewById(R.id.xlv);
dao = new UserDao(getActivity());
xListView.setPullLoadEnable(true);
imageLoaderInstances = ImageLoader.getInstance();
mAdapter = new MAdapter();
xListView.setAdapter(mAdapter);
initData(page); //请求网络数据

    //设置上下拉的逻辑
    xListView.setXListViewListener(new XListView.IXListViewListener() {
        //下拉刷新
        @Override
        public void onRefresh() {
            page = 0;
            initData(page);

        }

        //上拉加载更多;
        @Override
        public void onLoadMore() {
            page++;
            initData(page);
        }
    });
    return view;
}

private void initData(int page) {

// String mUrl = baseUrl + page;
// new MAsycnTask().execute(mUrl);
//调用网络判断
boolean connection = NetWord.isconnection(getActivity());
if(connection){//有网
String urls=url+page;
new MAsycnTask().execute(urls);
}else {
//没有网
Toast.makeText(getActivity(),“请检查网络再试”,Toast.LENGTH_LONG).show();
//根据url地址。从数据库中获取数据
String jsonData = dao.queryData(url);//调取数据库查询的方法
if (!"".equals(jsonData)){
//解析gson
Gson gson=new Gson();
Goods myBean = gson.fromJson(jsonData, Goods.class);
List<Goods.DataBean> data = myBean.getData();
list.addAll(data);

        }
    }

}


private class MAdapter extends BaseAdapter {
    @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 View getView(int i, View view, ViewGroup viewGroup) {
        View viewItem = View.inflate(getActivity(), R.layout.mybase1, null);
        TextView textView = (TextView) viewItem.findViewById(R.id.textView);
        ImageView imageView = (ImageView) viewItem.findViewById(R.id.imageView);
        textView.setText(list.get(i).getNews_title());
        imageLoaderInstances.displayImage(list.get(i).getPic_url(), imageView);


        return viewItem;
    }
}


class  MAsycnTask extends AsyncTask<String,Void,String> {

    @Override
    protected String doInBackground(String... strings) {
        return NetWordUtils.getNetjson(strings[0]);
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
        Gson gson = new Gson();
        Goods goods = gson.fromJson(s, Goods.class);
        List<Goods.DataBean> data = goods.getData();

        list.addAll(data);
        mAdapter.notifyDataSetChanged();
        uiComplete();//让刷新头和刷新底部隐藏;


    }
}

private void uiComplete() {
    xListView.setRefreshTime("刚刚");
    xListView.stopRefresh();//隐藏刷新头部
    xListView.stopLoadMore();//隐藏刷新脚部


}

}
fragment3.xml

<?xml version="1.0" encoding="utf-8"?>

LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“match_parent”
android:background="@mipmap/d"
android:layout_height=“match_parent”>
<com.recker.flybanner.FlyBanner
android:id="@+id/banner"
android:layout_width=“match_parent”
android:layout_height=“250dp”>

</com.recker.flybanner.FlyBanner>
**Fragmnet3.java**

package bawei.com.yuekaodemo1.fragment;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.recker.flybanner.FlyBanner;

import java.util.ArrayList;
import java.util.List;

import bawei.com.yuekaodemo1.R;

public class Fragmnet3 extends Fragment {
private FlyBanner flyBanner;
//有地址是为了得到地址里面的图片地址（使用HiJson查看）
private String path = “http://api.expoon.com/AppNews/getNewsList/type/1/p/1”;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment3, container, false);

    //获取资源ID
    flyBanner = view.findViewById(R.id.banner);
    return view;
}

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

    //网络的
    List<String> list=new ArrayList<>();
    list.add("http://f.expoon.com/sub/news/2016/01/19/650175_230x162_0.jpg");
    list.add("http://f.expoon.com/sub/news/2016/01/21/580828_230x162_0.jpg");
    list.add("http://f.expoon.com/sub/news/2016/01/21/745921_230x162_0.jpg");
    flyBanner.setImagesUrl(list);

    //本地图片

// List lists = new ArrayList<>();
// lists.add(R.mipmap.b);
// lists.add(R.mipmap.c);
// lists.add(R.mipmap.d);
// flyBanner.setImages(lists);

}

}
需要加入的权限
uses-permission android:name=“android.permission.WRITE_EXTERNAL_STORAGE”
uses-uses-permission android:name=“android.permission.READ_EXTERNAL_STORAGE”>
uses-permission android:name=“android.permission.INTERNET”>
uses-permission android:name=“android.permission.ACCESS_NETWORK_STATE” />

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