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>

---------------------------------------------------------

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<Bean.DataBean.ComicsBean> 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);}
}

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