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Posted 2020-10-08 沫髯小乐

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<application
    android:name=".appliction"
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"

public class MainActivity extends AppCompatActivity implements XListView.IXListViewListener{
    private List<String > imagelist=new ArrayList<>();
    private ViewPager pager;

    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            int what=msg.what;
            pager.setCurrentItem(what);
        }
    };
    private RadioGroup rg;
    private int con=0;
    private TextView night;
    private XListView xlv;
    private int page=1;
    private boolean flag;
    private List<Dao> dblist=new ArrayList<>();
    private MyBaseadapter adapter;
    private List<Bean.ListBean> list;
    private SQLiteDatabase db;
    private DbBaseadapter ada;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //实例化数据库
        Helper helper = new Helper(MainActivity.this);
        db = helper.getWritableDatabase();
        //7 点击右上角的地图按钮，实现日夜间模式切换（10分）
        night = (TextView) findViewById(R.id.night);
        night.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                yejian();


            }
        });
        // 实现图片无限轮播，并添加图片轮播指示器（各5分，10分）
        pager = (ViewPager) findViewById(R.id.pager);
        rg = (RadioGroup) findViewById(R.id.rg);
        imagelist.add("https://img10.360buyimg.com/da/jfs/t4747/277/1368712300/170619/35098d7f/58f038e0N9b3a0ca5.jpg");
        imagelist.add("https://img14.360buyimg.com/da/jfs/t4915/21/1427207714/81116/b005bb06/58f08963Ndb295b3c.jpg");
        imagelist.add("https://img13.360buyimg.com/da/jfs/t4651/104/2867456043/68336/99da4c16/58f41eaeN5b614a63.jpg");
        pager.setAdapter(new My());
        jian();
        new Thread() {
            @Override
            public void run() {
                while (true) {
                    try {
                        Thread.sleep(1000);
                        con++;
                        handler.sendEmptyMessage(con);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        }.start();
        xlv = (XListView) findViewById(R.id.xlv);
        xlv.setPullLoadEnable(true);
        xlv.setXListViewListener(this);
        //判断是否有网
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo netInfo = cm.getActiveNetworkInfo();
        if (netInfo != null && netInfo.isConnectedOrConnecting()) {
            Toast.makeText(MainActivity.this,"有网", Toast.LENGTH_SHORT).show();
            data();
        }else {
            Toast.makeText(MainActivity.this,"没网", Toast.LENGTH_SHORT).show();
            quary();
            if (ada ==null) {
                ada = new DbBaseadapter(MainActivity.this, dblist);
                xlv.setAdapter(ada);
            }else{
                ada.sss(dblist,flag);
            }
        }

    }





    public void quary(){
        Cursor query = db.query("user", null, null, null, null, null, null);
        while(query.moveToNext()){
            Dao d=new Dao();
            d.title=query.getString(query.getColumnIndex("title"));
            d.pic=query.getString(query.getColumnIndex("pic"));
            d.type=query.getInt(query.getColumnIndex("type"));
            dblist.add(d);
        }
    }
    //1 发起网络请求获取数据并显示（网络请求5分，数据显示5分，共10分）
    public void data(){
        jiexi("http://qhb.2dyt.com/Bwei/news?postkey=9rff1d1AK&type=5");
    }
    public void jiexi(String path) {
        new AsyncTask<String, Void, String>() {
            @Override
            protected void onPostExecute(String s) {
                if (s != null) {
                    Gson gson = new Gson();
                    Bean bean = gson.fromJson(s, Bean.class);
                    list = bean.getList();
                    if (adapter==null) {
                        adapter = new MyBaseadapter(MainActivity.this, list);
                        xlv.setAdapter(adapter);
                    }else{
                        adapter.sss(list,flag);
                    }
                    insert();
                }
            }

            @Override
            protected String doInBackground(String... params) {
                try {
                    URL url = new URL(params[0]);
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    connection.setRequestMethod("GET");
                    connection.setReadTimeout(3000);
                    connection.setConnectTimeout(3000);
                    int code = connection.getResponseCode();
                    if (code == 200) {
                        InputStream is = connection.getInputStream();
                        return info.readFromNetWork(is);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
                return null;
            }
        }.execute(path);
    }
    public void insert(){
        for (int i=0;i<list.size();i++){
            ContentValues values=new ContentValues();
            values.put("title",list.get(i).getTitle());
            values.put("pic",list.get(i).getPic());
            values.put("type",list.get(i).getType());
            db.insert("user",null,values);
        }
    }
    @Override
    public void onRefresh() {
        flag=false;
        ++page;
        data();
        xlv.stopRefresh(true);
    }
    @Override
    public void onLoadMore() {
        flag=true;
        ++page;
        data();
        xlv.stopLoadMore();
    }
    //轮播适配器
    class My extends PagerAdapter {

        @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(MainActivity.this);
            ImageLoader.getInstance().displayImage(imagelist.get(position%imagelist.size()),imageView,appliction.getImageOptions());
            container.addView(imageView);
            return imageView;
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {

            container.removeView((View) object);
        }
    }
    //pager和radiogroup结合使点和图片一起联动
    public void jian(){
        pager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                switch (position%imagelist.size()){
                    case 0:
                        rg.check(R.id.rb1);
                        break;
                    case 1:
                        rg.check(R.id.rb2);
                        break;
                    case 2:
                        rg.check(R.id.rb3);
                        break;
                }
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });
        rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, @IdRes int checkedId) {
                switch (checkedId%imagelist.size()){
                    case R.id.rb1:
                        pager.setCurrentItem(0);
                        break;
                    case R.id.rb2:
                        pager.setCurrentItem(1);
                        break;
                    case R.id.rb3:
                        pager.setCurrentItem(2);
                        break;
                }
            }
        });
    }
    //夜间模式
    public void yejian(){
        int mode = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
        if(mode == Configuration.UI_MODE_NIGHT_YES) {
            AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
        } else if(mode == Configuration.UI_MODE_NIGHT_NO) {
            AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
        } else {
            // blah blah
        }

        recreate();
    }

public class MyBaseadapter extends BaseAdapter {
    private List<Bean.ListBean> list;
    private Context context;
    public MyBaseadapter(Context context, List<Bean.ListBean> list) {
        this.context=context;
        this.list=list;
    }
    public void sss(List<Bean.ListBean> data,boolean flag){
        for (Bean.ListBean s:  data) {
            if (flag){
                list.add(s);
            }else{
                list.add(0,s);
            }
        }
        notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        return list!=null?list.size():0;
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHoder hoder=null;
        if (convertView==null){
            hoder=new ViewHoder();
            // 实现listview 多条目加载，总共两种类型（各5分，共10分）
           if(list.get(position).getType()==4){//四中图片的类型
               convertView=View.inflate(context,R.layout.item,null);
               hoder.image1= (ImageView) convertView.findViewById(R.id.image1);
               hoder.image2= (ImageView) convertView.findViewById(R.id.image2);
               hoder.image3= (ImageView) convertView.findViewById(R.id.image3);
               hoder.image4= (ImageView) convertView.findViewById(R.id.image4);
               hoder.title1= (TextView) convertView.findViewById(R.id.title1);
           }else if(list.get(position).getType()==2){//两种图片的类型
               convertView=View.inflate(context,R.layout.item1,null);
               hoder.image5= (ImageView) convertView.findViewById(R.id.image5);
               hoder.image6= (ImageView) convertView.findViewById(R.id.image6);
               hoder.title2= (TextView) convertView.findViewById(R.id.title2);
           }
           convertView.setTag(hoder);
        }else{
            hoder= (ViewHoder) convertView.getTag();
        }
        if(list.get(position).getType()==4){
            String pic = list.get(position).getPic();
            String [] temp = null;
            temp = pic.split("\\|");
            ImageLoader.getInstance().displayImage(temp[0],hoder.image1,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(temp[1],hoder.image2,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(temp[2],hoder.image3,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(temp[3],hoder.image4,appliction.getImageOptions());
            hoder.title1.setText(list.get(position).getTitle());
        }else if(list.get(position).getType()==2) {
            String pic = list.get(position).getPic();
            String[] split=null;
            split = pic.split("\\|");//接口pic是|这个隔开的所以要分割放入一个空的集合
            String str1=split[0];
            String str2=split[1];
            ImageLoader.getInstance().displayImage(str1,hoder.image5,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(str2,hoder.image6,appliction.getImageOptions());
            hoder.title2.setText(list.get(position).getTitle());
        }

        return convertView;
    }
    class ViewHoder{
        private TextView title1,title2;
        private ImageView image1,image2,image3,image4,image5,image6;
    }
}

public class DbBaseadapter extends BaseAdapter{
    private List<Dao> dblist;
    private Context context;
    public DbBaseadapter(Context context, List<Dao> dblist) {
        this.context=context;
        this.dblist=dblist;
    }
    public void sss(List<Dao> data,boolean flag){
        for ( Dao s:  data) {
            if (flag){
                dblist.add(s);
            }else{
                dblist.add(0,s);
            }
        }
        notifyDataSetChanged();
    }



    @Override
    public int getCount() {
        return dblist!=null?dblist.size():0;
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHoder hoder=null;
        if (convertView==null){
            hoder=new ViewHoder();
            // 实现listview 多条目加载，总共两种类型（各5分，共10分）
            if(dblist.get(position).getType()==4){//四中图片的类型
                convertView=View.inflate(context,R.layout.item,null);
                hoder.image1= (ImageView) convertView.findViewById(R.id.image1);
                hoder.image2= (ImageView) convertView.findViewById(R.id.image2);
                hoder.image3= (ImageView) convertView.findViewById(R.id.image3);
                hoder.image4= (ImageView) convertView.findViewById(R.id.image4);
                hoder.title1= (TextView) convertView.findViewById(R.id.title1);
            }else if(dblist.get(position).getType()==2){//两种图片的类型
                convertView=View.inflate(context,R.layout.item1,null);
                hoder.image5= (ImageView) convertView.findViewById(R.id.image5);
                hoder.image6= (ImageView) convertView.findViewById(R.id.image6);
                hoder.title2= (TextView) convertView.findViewById(R.id.title2);
            }
            convertView.setTag(hoder);
        }else{
            hoder= (ViewHoder) convertView.getTag();
        }
        if(dblist.get(position).getType()==4){
            String pic = dblist.get(position).getPic();
            String [] temp = null;
            temp = pic.split("\\|");
            ImageLoader.getInstance().displayImage(temp[0],hoder.image1,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(temp[1],hoder.image2,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(temp[2],hoder.image3,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(temp[3],hoder.image4,appliction.getImageOptions());
            hoder.title1.setText(dblist.get(position).getTitle());
        }else if(dblist.get(position).getType()==2) {
            String pic = dblist.get(position).getPic();
            String[] split=null;
            split = pic.split("\\|");//接口pic是|这个隔开的所以要分割放入一个空的集合
            String str1=split[0];
            String str2=split[1];
            ImageLoader.getInstance().displayImage(str1,hoder.image5,appliction.getImageOptions());
            ImageLoader.getInstance().displayImage(str2,hoder.image6,appliction.getImageOptions());
            hoder.title2.setText(dblist.get(position).getTitle());
        }

        return convertView;
    }
    class ViewHoder{
        private TextView title1,title2;
        private ImageView image1,image2,image3,image4,image5,image6;
    }
}

public class Dao {
    public  String title,pic;
    public int type;

    public void setTitle(String title) {
        this.title = title;
    }

    public String getTitle() {
        return title;
    }

    public void setPic(String pic) {
        this.pic = pic;
    }

    public int getType() {
        return type;
    }

    public void setType(int type) {
        this.type = type;
    }

    public String getPic() {
        return pic;
    }
}

public class Helper extends SQLiteOpenHelper {
    public Helper(Context context) {
        super(context, "user.db", null, 1);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
          db.execSQL("create table user(_id integer primary key autoincrement,title text,pic text,type integer)");
    }

    @Override
    public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {

    }
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"

    tools:context="com.example.wangshuaibiao201709221507b.MainActivity">

    <LinearLayout
        android:id="@+id/linear"
        android:background="#f00"
        android:layout_width="match_parent"
        android:layout_height="30dp"
        android:orientation="horizontal">
        <TextView
            android:layout_margin="5dp"
            android:layout_gravity="center"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="北京"/>
        <EditText
            android:layout_gravity="center"
            android:background="@color/viewBackground"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="2"
            android:hint="国风悦府"
            android:gravity="center"/>
        <TextView
            android:id="@+id/night"
            android:layout_margin="5dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="地图"/>
    </LinearLayout>
    <android.support.v4.view.ViewPager
        android:layout_below="@+id/linear"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:id="@+id/pager"></android.support.v4.view.ViewPager>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/ll"
        android:layout_marginTop="80dp"
        android:orientation="vertical">

        <RadioGroup
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/rg"
            android:orientation="horizontal"
            android:gravity="center"
            >
            <RadioButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/rb1"
                android:checked="true"/>

            <RadioButton
                android:id="@+id/rb2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

            <RadioButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/rb3"/>
        </RadioGroup>
    </LinearLayout>

    <com.limxing.xlistview.view.XListView
        android:background="@color/viewBackground"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/xlv"
        android:layout_below="@+id/pager"></com.limxing.xlistview.view.XListView>
</RelativeLayout>

    <TextView
        android:id="@+id/title1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="TextView"
        android:layout_margin="8dp"/>
    <LinearLayout

        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
    <ImageView
        android:layout_margin="5dp"
        android:layout_weight="1"
        android:src="@mipmap/ic_launcher"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/image1"/>
        <ImageView
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@mipmap/ic_launcher"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/image2"/>
        <ImageView
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@mipmap/ic_launcher"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/image3"/>
        <ImageView
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@mipmap/ic_launcher"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/image4"/>
    </LinearLayout>

<TextView
        android:id="@+id/title2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="TextView"
        android:layout_margin="8dp"/>
    <LinearLayout
        android:layout_margin="5dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <ImageView
            android:layout_weight="1"
            android:src="@mipmap/ic_launcher"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/image5"/>
        <ImageView
            android:layout_weight="1"
            android:src="@mipmap/ic_launcher"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/image6"/>

    </LinearLayout>