Android--------------无线轮播，Xlistview展示数据并保存到数据库。

public class MainActivity extends AppCompatActivity implements XListView.IXListViewListener{    private Banner ban;    private XListView mxv;    private int type=1;    //加载内容的接口    private String url="http://qhb.2dyt.com/Bwei/news?page=1&postkey=1503d&type=";    private ArrayList<News1.ListBean> mlist=new ArrayList<>();    private Myadapter md;    private Sqlhelp sh;    private SQLiteDatabase db;    private  long l;    private ArrayList<User> list=new ArrayList<>();    //轮播图的接口    private String urlpath="http://api.kuaikanmanhua.com/v1/daily/comic_lists/0?since=0&gender=0&sa_event=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";    private Handler hand=new Handler(){        @Override        public void handleMessage(Message msg) {            //轮播图           if (msg.what==1){               Gson gson=new Gson();               News news = gson.fromJson(msg.obj.toString(), News.class);               ArrayList<String> titles=new ArrayList<>();               ArrayList<String> images=new ArrayList<>();               List<News.DataBean.ComicsBean> com = news.getData().getComics();               for (News.DataBean.ComicsBean q:com){                   titles.add(q.getTitle());                   images.add(q.getCover_image_url());               }               ban.setImages(images);               ban.setBannerTitles(titles);               ban.start();           }             //展示的详细数据            if (msg.what==2){                Gson gson=new Gson();                News1 news1 = gson.fromJson(msg.obj.toString(), News1.class);                mlist.addAll(news1.getList());                md.notifyDataSetChanged();                stop();                //把数据存到数据库                cun();            }        }    };     //把数据存到数据库的方法    private void cun() {        ContentValues values=new ContentValues();        for (News1.ListBean qq:mlist){           values.put("title",qq.getTitle());            values.put("idd",qq.getId());            values.put("image",qq.getPic());             l = db.insert("user", null, values);        }        if (l>0){            Toast.makeText(this,"插入成功！！",Toast.LENGTH_SHORT).show();        }else{            Toast.makeText(this,"插入失败！！！",Toast.LENGTH_SHORT).show();        }    }    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        if (isNetworkAvailable(this)){            //有网的情况下            sh=new Sqlhelp(this);            db = sh.getWritableDatabase();            initview();            //加载轮播接口            initdata();            loaddata();        }else {            //没网的情况下查询数据库中的信息并存到User类中，并用Xlistview展示出数据。            mxv=(XListView)findViewById(R.id.x_listview) ;            sh=new Sqlhelp(this);            db = sh.getWritableDatabase();            Cursor cursor = db.rawQuery("select * from user", null);            while (cursor.moveToNext()) {                String title = cursor.getString(cursor.getColumnIndex("title"));                String idd = cursor.getString(cursor.getColumnIndex("idd"));                String image = cursor.getString(cursor.getColumnIndex("image"));                User user = new User(title, idd, image);                list.add(user);            }            //设置User类的适配器            Useradapter uad=new Useradapter(this,list);            mxv.setAdapter(uad);        }    }    //加载详细数据的方法    private void loaddata() {        new Thread(){            @Override            public void run() {                String str1 = Httpurl.getUrlConnect(url + type);                Message msg=Message.obtain();                msg.what=2;                msg.obj=str1;                hand.sendMessage(msg);            }        }.start();    }    private void initview() {        ban=(Banner)findViewById(R.id.ban);        mxv=(XListView)findViewById(R.id.x_listview) ;        mxv.setPullLoadEnable(true);        mxv.setXListViewListener(this);        //设置图片加载器        BannerImageload bil=new BannerImageload();        ban.setImageLoader(bil);        //设置显示样式(显示数字指示器和标题)        ban.setBannerStyle(BannerConfig.NUM_INDICATOR_TITLE);        //设置适配器        md=new Myadapter(this,mlist);        mxv.setAdapter(md);        //xlistview的监听事件        mxv.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                News1.ListBean bean = mlist.get(position-1);                Intent intent=new Intent(MainActivity.this,NextActivity.class);                intent.putExtra("aa",bean.getPic());                startActivity(intent);            }        });    }   //加载轮播图的方法    private void initdata() {        new Thread(){            @Override            public void run() {                String str = Httpurl.getUrlConnect(urlpath);                Message msg=Message.obtain();                msg.what=1;                msg.obj=str;                hand.sendMessage(msg);            }        }.start();    }    @Override    public void onRefresh() {        type=1;        mlist.clear();        loaddata();    }    @Override    public void onLoadMore() {        type++;        loaddata();    }    private void stop() {        mxv.stopLoadMore();        mxv.stopRefresh();        mxv.setRefreshTime("刚刚");    }    //判断网络是否连接的方法    public static boolean isNetworkAvailable(Context context) {        ConnectivityManager connectivity = (ConnectivityManager) context                .getSystemService(Context.CONNECTIVITY_SERVICE);        if (connectivity != null) {            NetworkInfo info = connectivity.getActiveNetworkInfo();            if (info != null && info.isConnected())            {                // 当前网络是连接的                if (info.getState() == NetworkInfo.State.CONNECTED)                {                    // 当前所连接的网络可用                    return true;                }            }        }        return false;    }}效果图：  点击后：