Xutils请求数据imageloader加载图片+网络判断

添加依赖：
compile 'com.github.bumptech.glide:glide:4.0.0-RC1'
compile 'com.google.code.gson:gson:2.8.1'
compile files('libs/universal-image-loader-1.9.5.jar')
compile 'org.xutils:xutils:3.5.0'

在AndroidManifest中添加网络权限：

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

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package fragment;

import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.e.yuekaolianxi.PingDaoGuanLi;
import com.example.e.yuekaolianxi.R;
import com.example.e.yuekaolianxi.Utils;
import com.google.gson.Gson;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;

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

import bean.Bean;

public class Fragment2_ShiPing extends Fragment implements View.OnClickListener {
    private ViewPager viewPager;
    private ImageView[] points;
    private int count = 0;
    private String s;
    private List list;
    private MyAdapter adapter;
    private GridView gridView;
    private Button pingdao;
    private String[] images = {
            "http://f2.kkmh.com/image/161129/5lw6qrrjf.webp-w750.jpg",
            "http://f2.kkmh.com/image/160127/ord904ylf.webp-w750.jpg",
            "http://f2.kkmh.com/image/170623/6c5i8d00h.webp-w750.jpg",
            "http://f2.kkmh.com/image/170216/4qksgntjb.webp-w750.jpg",
            "http://f2.kkmh.com/image/170616/miaujen7x.webp-w750.jpg"};
    Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            viewPager.setCurrentItem(count);
            count++;
            count = count % images.length;
            send();
        }
    };
    Handler mHandler1 = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            s = msg.obj.toString();
            Gson gson = new Gson();
            Bean bean = gson.fromJson(s, Bean.class);
            list.addAll(bean.getData().getComics());

            adapter.notifyDataSetChanged();
        }
    };

    private String path = "http://api.kuaikanmanhua.com/v1/daily/comic_lists/1489334400?since=0&gender=0&sa_event=eyJwcm9qZWN0I";

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment2_faxian, container, false);
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        gridView = (GridView) getView().findViewById(R.id.gridView);
        pingdao = (Button) getView().findViewById(R.id.pingdao);
        initView();
        points = new ImageView[5];
        points[0] = (ImageView) getView().findViewById(R.id.image01);
        points[1] = (ImageView) getView().findViewById(R.id.image02);
        points[2] = (ImageView) getView().findViewById(R.id.image03);
        points[3] = (ImageView) getView().findViewById(R.id.image04);
        points[4] = (ImageView) getView().findViewById(R.id.image05);

        for (ImageView image : points) {
            image.setOnClickListener(this);
        }
        updatePoint(count);
        send();

        if (isNetworkAvailable(getActivity())) {
            loder();
        }

        list = new ArrayList<>();
        adapter = new MyAdapter();
        gridView.setAdapter(adapter);
       //跳转到频道管理页面
        pingdao.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getActivity(), PingDaoGuanLi.class);
                startActivity(intent);
            }
        });
    }

    private void loder() {
        new Thread() {
            @Override
            public void run() {

                String s = Utils.parmrs(path);
                Message msg = Message.obtain();
                msg.obj = s;

                mHandler1.sendMessage(msg);
            }
        }.start();
    }

    private void updatePoint(int position) {
        for (ImageView image : points) {
            image.setImageResource(R.drawable.nor);
        }
        points[position].setImageResource(R.drawable.sel);
    }

    private void initView() {
        viewPager = (ViewPager) getView().findViewById(R.id.viewPager);
        final ViewPagerAdapter adapter = new ViewPagerAdapter();
        viewPager.setAdapter(adapter);
        viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            private boolean flag;

            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                updatePoint(position);
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });
    }

    public void send() {
        new Thread() {
            @Override
            public void run() {
                mHandler.sendEmptyMessageDelayed(count, 2000);
            }
        }.start();
    }

    @Override
    public void onClick(View v) {
        mHandler.removeCallbacksAndMessages(null);
        int intex = Integer.valueOf(v.getTag().toString());
        viewPager.setCurrentItem(intex, false);
        count = intex + 1;
        send();
    }

    class ViewPagerAdapter extends PagerAdapter {

        @Override
        public int getCount() {
            return images.length;
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == object;
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            ImageView imageView = new ImageView(getActivity());
            Glide.with(getActivity())
                    .load(images[position])
//                    .placeholder(R.drawable.nor)
                    .into(imageView);
            container.addView(imageView);
            return imageView;
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            container.removeView((View) object);
        }
    }

    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;
    }

    class MyAdapter extends BaseAdapter {
        ImageLoader imageLoader;
        DisplayImageOptions options;

        public MyAdapter() {
            imageLoader = ImageLoader.getInstance();
            ImageLoaderConfiguration config = ImageLoaderConfiguration.createDefault(getActivity());
            imageLoader.init(config);

            options = new DisplayImageOptions.Builder()
                    .showImageOnLoading(R.mipmap.ic_launcher)
                    .build();
        }

        @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 View getView(int position, View convertView, ViewGroup parent) {
            Bean.DataBean.ComicsBean bean = list.get(position);

            Holder holder;
            if (convertView == null) {
                holder = new Holder();
                convertView = View.inflate(getActivity(), R.layout.fragment2_item, null);
                holder.image = (ImageView) convertView.findViewById(R.id.imageView);
                holder.tv1 = (TextView) convertView.findViewById(R.id.tv1);
                holder.tv2 = (TextView) convertView.findViewById(R.id.tv2);

                convertView.setTag(holder);
            } else {
                holder = (Holder) convertView.getTag();
            }

            holder.tv1.setText(bean.getTopic().getTitle());
            holder.tv2.setText(bean.getTitle());

            imageLoader.displayImage(bean.getTopic().getCover_image_url(), holder.image, options);

            return convertView;
        }
    }

    class Holder {
        ImageView image;
        TextView tv1, tv2;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        mHandler.removeCallbacksAndMessages(null);
    }
}