xlistview网络请求数据以及添加headerview_自动轮播viewpager控件

主页代码:

package com.bwie.xlistview;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.os.AsyncTask;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.Toast;import com.bwie.xlistview.ADAPTER.ViewPagerAdapter;import com.bwie.xlistview.ADAPTER.XlistviewAdapter;import com.bwie.xlistview.API.API;import com.bwie.xlistview.BEAN.CartoonInfo;import com.google.gson.Gson;import java.io.BufferedReader;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 imageloader.bwie.com.mylibrary.XListView;public class MainActivity extends AppCompatActivity implements XListView.IXListViewListener, ViewPager.OnPageChangeListener {    private XListView xlistview;    private XlistviewAdapter xlvadap;    private boolean isfresh=false;    private int SKIP=0;    private networkreceiver receiver;    private ViewPager viewpager;    private List<String> imageurls=new ArrayList<>();    private List<ImageView> imageviews=new ArrayList<>();    private LinearLayout linear_dot;    private Handler handler=new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            int currentItem = viewpager.getCurrentItem();            if (currentItem>=Integer.MAX_VALUE-1) {                currentItem=0;            }            currentItem++;            viewpager.setCurrentItem(currentItem);            handler.sendEmptyMessageDelayed(0,1000);        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //注册广播判断网络状态        registerNetWorkReceiver();        //获取控件        initView();        initViewPager();        initData();    }    private void initViewPager() {        imageurls.add(API.VIEWPAGER_IMAGEURL1);        imageurls.add(API.VIEWPAGER_IMAGEURL2);        imageurls.add(API.VIEWPAGER_IMAGEURL3);        //画点        drawDot();        ViewPagerAdapter adpater=new ViewPagerAdapter(imageurls,this);        viewpager.setAdapter(adpater);        //启动轮播        handler.sendEmptyMessageDelayed(0,1000);    }    private void drawDot() {        if (imageurls!=null) {            for (int i=0;i<imageurls.size();i++){                ImageView image=new ImageView(this);                if (i==0) {                    image.setImageResource(R.drawable.red_dot);                }else{                    image.setImageResource(R.drawable.white_dot);                }                linear_dot.addView(image);                imageviews.add(image);            }        }    }    private void registerNetWorkReceiver() {        if (receiver==null) {            receiver = new networkreceiver();        }        IntentFilter filter=new IntentFilter();        filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);        this.registerReceiver(receiver,filter);    }    private void initData() {        new asynctask().execute(API.DATA_URL);    }    private void initView() {        xlistview = (XListView) findViewById(R.id.xlistview);        View header = View.inflate(this, R.layout.xlistview_headerview, null);        viewpager = header.findViewById(R.id.viewpager);        linear_dot = header.findViewById(R.id.linear_dot);        xlistview.addHeaderView(header);        xlistview.setPullRefreshEnable(true);        xlistview.setPullLoadEnable(true);        xlistview.setXListViewListener(this);        viewpager.setOnPageChangeListener(this);    }    @Override    public void onRefresh() {            isfresh=true;        if (xlvadap!=null) {            xlvadap=null;            new asynctask().execute(API.DATA_URL);        }    }    @Override    public void onLoadMore() {        isfresh=false;        SKIP=SKIP+20;        String dataUrlSkip = API.DATA_URL_SKIP_FRONT+SKIP+API.DATA_URL_SKIP_AFTER;        new asynctask().execute(dataUrlSkip);    }    @Override    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {    }    @Override    public void onPageSelected(int position) {        if (imageviews!=null) {            for (int i = 0; i < imageviews.size(); i++) {                ImageView imageView = imageviews.get(i);                if (i==position%imageviews.size()) {                    imageView.setImageResource(R.drawable.red_dot);                }else{                    imageView.setImageResource(R.drawable.white_dot);                }            }        }    }    @Override    public void onPageScrollStateChanged(int state) {    }    class asynctask extends AsyncTask<String,Integer,List<String>>{        @Override        protected List<String> doInBackground(String... strings) {                StringBuffer buffer=new StringBuffer();            try {                URL url=new URL(strings[0]);                HttpURLConnection httpurlcon = (HttpURLConnection) url.openConnection();                httpurlcon.connect();                int responseCode = httpurlcon.getResponseCode();                if (200== responseCode) {                    InputStream inputStream = httpurlcon.getInputStream();                    BufferedReader reader=new BufferedReader(new InputStreamReader(inputStream));                    String line=null;                    while ((line=reader.readLine())!=null) {                        buffer.append(line);                    }                    ParseData(buffer.toString());                }            } catch (Exception e) {                e.printStackTrace();            }            return null;        }        private void ParseData(String s) {            CartoonInfo cartoonInfo = new Gson().fromJson(s, CartoonInfo.class);            final List<CartoonInfo.Book> bookList = cartoonInfo.result.bookList;            runOnUiThread(new Runnable() {                @Override                public void run() {                    if (bookList!=null) {                        if (xlvadap==null) {                            xlvadap = new XlistviewAdapter(MainActivity.this,bookList);                            xlistview.setAdapter(xlvadap);                        }else{                            if (isfresh==false){                                xlvadap.add(bookList);                                xlvadap.notifyDataSetChanged();                            }                            xlvadap.notifyDataSetChanged();                        }                    }                }            });            xlistview.stopLoadMore();            xlistview.stopRefresh();        }    }   public  class networkreceiver extends BroadcastReceiver{        @Override        public void onReceive(Context context, Intent intent) {            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);            NetworkInfo networkInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);            NetworkInfo networkInfo1 = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);            if (!networkInfo.isConnected()&&!networkInfo1.isConnected()) {                System.out.println("网络已断开");                Toast.makeText(context,"网络已断开",Toast.LENGTH_LONG).show();                //跳转到系统网络设置页面//                Intent intent1 =  new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);//                startActivity(intent1);            }else{                Toast.makeText(context,"网络已连接",Toast.LENGTH_LONG).show();            }        }    }}

Xlistview适配器代码:

package com.bwie.xlistview.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.bwie.xlistview.BEAN.CartoonInfo;import com.bwie.xlistview.R;import com.nostra13.universalimageloader.core.ImageLoader;import java.util.List;/** * Created by Administrator on 2017/8/23. */public class XlistviewAdapter extends BaseAdapter {    private Context context;    private List<CartoonInfo.Book> list;    private static int ITEM_TYPE_COUNT=2;    final private static int ITEM_TYPE_A=0;    final private static int ITEM_TYPE_B=1;    public XlistviewAdapter(Context context, List<CartoonInfo.Book> list) {        this.context = context;        this.list = list;    }    public void add(List<CartoonInfo.Book> bookList){        list.addAll(bookList);    }    @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 int getItemViewType(int position) {        if (position%2==0) {            return ITEM_TYPE_A;        }else{            return ITEM_TYPE_B;        }    }    @Override    public int getViewTypeCount() {        return ITEM_TYPE_COUNT;    }    @Override    public View getView(int i, View view, ViewGroup viewGroup) {        int itemViewType = getItemViewType(i);        ViewHolder viewholder;        if (view==null) {            viewholder=new ViewHolder();            switch (itemViewType){                case ITEM_TYPE_A:                    view=View.inflate(context, R.layout.clistview_itemtype_a,null);                    view.setTag(viewholder);                    viewholder.iv=view.findViewById(R.id.iv_a);                    viewholder.tv=view.findViewById(R.id.tv_a);                    break;                case ITEM_TYPE_B:                    view=View.inflate(context, R.layout.clistview_itemtype_b,null);                    view.setTag(viewholder);                    viewholder.iv=view.findViewById(R.id.iv_b);                    viewholder.tv=view.findViewById(R.id.tv_b);                    break;            }        }else{            viewholder= (ViewHolder) view.getTag();        }        viewholder.tv.setText(list.get(i).name);        ImageLoader.getInstance().displayImage(list.get(i).coverImg,viewholder.iv);        return view;    }    class ViewHolder{        public ImageView iv;        public TextView tv;    }}

viewpager代码:

package com.bwie.xlistview.ADAPTER;import android.content.Context;import android.support.v4.view.PagerAdapter;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import com.nostra13.universalimageloader.core.ImageLoader;import java.util.List;/** * Created by Administrator on 2017/8/24. */public class ViewPagerAdapter extends PagerAdapter {    private List<String> imageurls;    private Context context;    public ViewPagerAdapter(List<String> imageurls, Context context) {        this.imageurls = imageurls;        this.context = context;    }    @Override    public int getCount() {        return Integer.MAX_VALUE;    }    @Override    public boolean isViewFromObject(View view, Object object) {        return view==object;    }    @Override    public void destroyItem(ViewGroup container, int position, Object object) {        container.removeView((View) object);    }    @Override    public Object instantiateItem(ViewGroup container, int position) {        String imageurl = imageurls.get(position%imageurls.size());        ImageView imageview=new ImageView(context);        ImageLoader.getInstance().displayImage(imageurl,imageview);        container.addView(imageview);        return imageview;    }}