package com.example.news_consulting_project.fragment; import android.net.ConnectivityManager; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.support.v4.view.ViewPager; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.RelativeLayout; import android.widget.TextView; import com.example.news_consulting_project.R; import com.example.news_consulting_project.adapter.Fragmentone_ViewPagerAdapter; import com.example.news_consulting_project.adapter.MyAdapter; import com.example.news_consulting_project.beans.WangLuo; import com.example.news_consulting_project.utils.HttpUtils; import com.example.news_consulting_project.utils.Judgment_Network; import com.google.gson.Gson; import com.handmark.pulltorefresh.library.ILoadingLayout; import com.handmark.pulltorefresh.library.PullToRefreshBase; import com.handmark.pulltorefresh.library.PullToRefreshListView; import com.nostra13.universalimageloader.utils.L; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; public class Fragment_one extends Fragment{ private String[] imgs={ "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1529639296673&di=43114bdbe3faae553881cc3ef1c60322&imgtype=0&src=http%3A%2F%2Fdesk.fd.zol-img.com.cn%2Ft_s960x600c5%2Fg5%2FM00%2F04%2F0C%2FChMkJljeDCmIOQJLAAsSVSpxRywAAbPVwG-PqsACxJt217.jpg", "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1529639356358&di=6bbeba2abbfefc2b20f49dea1fbbf327&imgtype=0&src=http%3A%2F%2Fimg.tuku.cn%2Ffile_big%2F201504%2F0c07f3655d38407aa8f0be5192c4e72e.jpg", "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1529639493748&di=1b1f702c851df08de659d575d3f19561&imgtype=0&src=http%3A%2F%2Fpic1.win4000.com%2Fwallpaper%2F2%2F5879a27b12a30.jpg", "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1529639493747&di=f7dd31c220f09f384dc717816889afbc&imgtype=0&src=http%3A%2F%2Fimg.sj33.cn%2Fuploads%2Fallimg%2F201211%2F20121114133513139.jpg", "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1530234463&di=99688fc3606ef9855b731d7da814061b&imgtype=jpg&er=1&src=http%3A%2F%2Fattach.bbs.miui.com%2Fforum%2F201410%2F02%2F233404gc5kp58b7oc9pleu.jpg", "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1529639894632&di=fe8d97c2bbdec06d66ab8f68a08455db&imgtype=0&src=http%3A%2F%2Fy2.ifengimg.com%2Fa%2F2014_52%2F94eee5d08311efb.jpg", "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1530235165&di=8cdeaf64b1cee9668f985227dd1b76cc&imgtype=jpg&er=1&src=http%3A%2F%2Fimg.pintu360.com%2Fwp-content%2Fuploads%2F2015%2F03%2F5fae62bca5d2c05bc7920705c64b06a2.jpg%3Fx-oss-process%3Dstyle%2Farticle-detail-744", "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1529553594735&di=4133e5bb6f4221acbc673d0518e34ed6&imgtype=jpg&src=http%3A%2F%2Fimg1.imgtn.bdimg.com%2Fit%2Fu%3D1706558701%2C1505343713%26fm%3D214%26gp%3D0.jpg", }; private ViewPager viewPager; private LinearLayout linearLayout; private HttpUtils httpUtils; private boolean connectivity; private RelativeLayout relativeLayout; private List<ImageView> image_list= new ArrayList<>(); private List<WangLuo.ResultsBean> list = new ArrayList<>(); private Fragmentone_ViewPagerAdapter adapter; private String path = "http://gank.io/api/search/query/listview/"; private int page=1; private MyAdapter adapter1; //接受当前的页 private int num ; private PullToRefreshListView pullToRefreshListView; // private Handler handler = new Handler(){ @Override public void handleMessage(Message msg) { super.handleMessage(msg); //接受当前的位置 num = viewPager.getCurrentItem(); //改变页面的选中 viewPager.setCurrentItem(num+1); handler.sendEmptyMessageDelayed(1,2000); } }; //单列 public static Fragment getInstance(String title){ //创建Fragmentone Fragment_one fragment_one = new Fragment_one(); //创建bundle Bundle bundle = new Bundle(); //添加值 bundle.putString("title",title); //把值添加到Arguments中 fragment_one.setArguments(bundle); return fragment_one; } //1.开始view @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { Log.i("TAG","onCreateView"); View view = inflater.inflate(R.layout.fragment_one,container,false); //获得组件 initSetView(view); return view; } //2.获得组件 private void initSetView(View view) { viewPager = view.findViewById(R.id.fragmentone_viewpager2); linearLayout = view.findViewById(R.id.ll); relativeLayout = view.findViewById(R.id.fragment_one_re); //获得资源ID pullToRefreshListView = view.findViewById(R.id.pull_listview); //设置头部底部的视图 //2.设置模式 BOTH 可以上拉 下拉 pull_from_end代表上拉，pull_from_start代表下拉 pullToRefreshListView.setMode(PullToRefreshBase.Mode.BOTH); //3.都是布尔类型 第一个如果为true 时 当前设置的就是头部 如果第二个为true设置的就是底部 //先请求上拉刷新 final ILoadingLayout startLoading= pullToRefreshListView.getLoadingLayoutProxy(true, false); startLoading.setPullLabel("下拉刷新"); startLoading.setRefreshingLabel("正在刷新"); startLoading.setReleaseLabel("放开刷新"); ILoadingLayout endLoading = pullToRefreshListView.getLoadingLayoutProxy(false, true); endLoading.setPullLabel("上拉加载"); endLoading.setRefreshingLabel("正在加载"); endLoading.setReleaseLabel("放开加载"); //4.接口回调上拉下拉 pullToRefreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() { @Override public void onPullDownToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) { page = 1; getDatas(); handler.postDelayed(new Runnable() { @Override public void run() { //必须在异步中完成 在列表没有数据的时候，不再请求接口，调用当前方法 pullToRefreshListView.onRefreshComplete(); } },2000); //可以设置刷新的时间.... startLoading.setLastUpdatedLabel("上次更新时间:"+new SimpleDateFormat("HH:mm").format(new Date(System.currentTimeMillis())));//last最近的,最后一次update修改/更新 } @Override public void onPullUpToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) { page+=1; getDatas(); //12. handler.postDelayed(new Runnable() { @Override public void run() { pullToRefreshListView.onRefreshComplete(); } },2000); } }); adapter1 = new MyAdapter(list,getActivity()); pullToRefreshListView.setAdapter(adapter1); } //3.页面展示 @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); //请求网络状态 connectivity = Judgment_Network.getInstance().isConnectivity(getActivity()); //得到title值 Bundle arguments = getArguments(); if (arguments.get("title").equals("头条")){ //请求数据 //判断当前网络 if (connectivity){ //2.1 获得小圆点 initView(); //适配器展示viewpager adapter = new Fragmentone_ViewPagerAdapter(imgs,getActivity(),handler); //4.1加载适配器 viewPager.setAdapter(adapter); handler.sendEmptyMessageDelayed(1,3000); //4.1_1轮播图滑动监听 viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { //通过存入集合中的Imageview 来判断小圆点的样子 for (int i = 0; i <image_list.size() ; i++) { if(i == position%image_list.size()){ image_list.get(i).setSelected(true); }else { image_list.get(i).setSelected(false); } } } @Override public void onPageScrollStateChanged(int state) { } }); }else { //从缓存中取图片 } } } //获得小圆点 private void initView() { for (int i = 0; i < imgs.length; i++) { //创建图片 ImageView imageView = new ImageView(getActivity()); //设置选择器 imageView.setImageResource(R.drawable.image_selector); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); layoutParams.setMargins(10,10,10,10); linearLayout.addView(imageView,layoutParams); //添加到集合中 image_list.add(imageView); } //设置默认要显示的轮播图的原点 image_list.get(0).setSelected(true); } //请求不同的数据是要做的判断 @Override public void setUserVisibleHint(boolean isVisibleToUser) { super.setUserVisibleHint(isVisibleToUser); Log.i("TAG", "setUserVisibleHint"); Bundle arguments = getArguments(); //取值赋值 if (isVisibleToUser && arguments.get("title").equals("头条")){ //请求数据 //判断当前网络 if(connectivity){ getData("category/Android/count/10/page/1"); }else{ //从缓存中取图片 } }else if(isVisibleToUser && arguments.get("title").equals("娱乐")){ relativeLayout.setVisibility(View.GONE); getData("category/all/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("科技")){ relativeLayout.setVisibility(View.GONE); getData("category/iOS/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("信息")){ relativeLayout.setVisibility(View.GONE); getData("category/休息视频/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("八卦")){ relativeLayout.setVisibility(View.GONE); getData("category/福利/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("北京")){ relativeLayout.setVisibility(View.GONE); getData("category/拓展资源/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("上海")){ relativeLayout.setVisibility(View.GONE); getData("category/前端/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("天津")){ relativeLayout.setVisibility(View.GONE); getData("category/瞎推荐/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("重庆")){ relativeLayout.setVisibility(View.GONE); getData("category/App/count/10/page/1"); handler.removeCallbacksAndMessages(null); }else if(isVisibleToUser && arguments.get("title").equals("大大燕网")){ relativeLayout.setVisibility(View.GONE); handler.removeCallbacksAndMessages(null); } } //请求数据的方法 参数传入分类 public void getData(String s) { httpUtils= HttpUtils.getInstence(); String url = path+s; httpUtils.getdata(url); httpUtils.setHttpLinstener(new HttpUtils.HttpLinstener() { @Override public void getjsondata(String json) { Gson gson = new Gson(); WangLuo wangLuo = gson.fromJson(json, WangLuo.class); List<WangLuo.ResultsBean> results = wangLuo.getResults(); //8.在list集合中添加数据 Log.i("TAG",results.size()+""); //如果是第一页的数据 清空集合 if (page == 1){ list.clear(); } //将请求到的数据刷新 list.addAll(results); adapter1.notifyDataSetChanged(); } }); } public void getDatas() { String u = "category/Android/count/10/page/"+page; String url = path+u; httpUtils.getdata(url); httpUtils.setHttpLinstener(new HttpUtils.HttpLinstener() { @Override public void getjsondata(String json) { Gson gson = new Gson(); WangLuo wangLuo = gson.fromJson(json, WangLuo.class); List<WangLuo.ResultsBean> results = wangLuo.getResults(); //8.在list集合中添加数据 Log.i("TAG",results.size()+""); //如果是第一页的数据 清空集合 if (page == 1){ list.clear(); } //将请求到的数据刷新 list.addAll(results); adapter1.notifyDataSetChanged(); } }); } }
第二种请求的方式
package com.example.lianxiti.fragment; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.annotation.NonNull; 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.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.RelativeLayout; import com.example.lianxiti.MainActivity; import com.example.lianxiti.R; import com.example.lianxiti.adapter.MyAdapter; import com.example.lianxiti.adapter.PagerAdapterOne; import com.example.lianxiti.beans.Beans; import com.example.lianxiti.beans.MyBeans; import com.example.lianxiti.utils.HttpUtils; import com.example.lianxiti.utils.MyApp; import com.google.gson.Gson; import com.handmark.pulltorefresh.library.ILoadingLayout; import com.handmark.pulltorefresh.library.PullToRefreshBase; import com.handmark.pulltorefresh.library.PullToRefreshListView; import com.nostra13.universalimageloader.core.ImageLoader; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; public class FragmentOne extends Fragment{ private String image_url = "https://www.zhaoapi.cn/ad/getAd"; private String name_path = "https://www.apiopen.top/novelApi"; private HttpUtils httpUtils ; private ViewPager viewPager; private LinearLayout linearLayout; private RelativeLayout relativeLayout; private PullToRefreshListView pullToRefreshListView; private List<ImageView> list_img = new ArrayList<>(); private List<ImageView> list_img1 = new ArrayList<>(); private List<MyBeans.DataBean> list = new ArrayList<>(); private MyAdapter adapter ; private int num; private Handler handler = new Handler(){ @Override public void handleMessage(Message msg) { super.handleMessage(msg); num = viewPager.getCurrentItem(); viewPager.setCurrentItem(num+1); handler.sendEmptyMessageDelayed(1,3000); } }; //单列 public static Fragment getInStance(String title){ //创建Fragment FragmentOne fragmentOne = new FragmentOne(); Bundle bundle = new Bundle(); bundle.putString("title",title); fragmentOne.setArguments(bundle); return fragmentOne; } @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragmentone,container,false); //1.获得组件 initSetView(view); return view; } //1.2获得组件 private void initSetView(View view) { viewPager = view.findViewById(R.id.fragmentone_view); linearLayout = view.findViewById(R.id.fragmentone_l1near); relativeLayout = view.findViewById(R.id.fragmentone_r1); pullToRefreshListView = view.findViewById(R.id.fragmentone_p); //设置 pullToRefreshListView.setMode(PullToRefreshBase.Mode.BOTH); final ILoadingLayout startLoading = pullToRefreshListView.getLoadingLayoutProxy(true, false); startLoading.setPullLabel("下拉刷新"); startLoading.setRefreshingLabel("正在刷新"); startLoading.setReleaseLabel("放开刷新"); ILoadingLayout endLoading = pullToRefreshListView.getLoadingLayoutProxy(false, true); endLoading.setPullLabel("上拉加载"); endLoading.setRefreshingLabel("正在加载"); endLoading.setReleaseLabel("放开加载"); //借口回调 pullToRefreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() { @Override public void onPullDownToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) { getData(); //可以设置刷新的时间.... startLoading.setLastUpdatedLabel("上次更新时间:"+new SimpleDateFormat("HH:mm").format(new Date(System.currentTimeMillis())));//last最近的,最后一次update修改/更新 } @Override public void onPullUpToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) { getData(); } }); adapter = new MyAdapter(getActivity(), list); pullToRefreshListView.setAdapter(adapter); } //加载视图 @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); //得到title的值 Bundle arguments = getArguments(); if (arguments.get("title").equals("头条")){ //解析数据 getDataImage(); }else { } } //获得图片 public void getDataImage() { httpUtils = HttpUtils.getInstence(); httpUtils.getdata(image_url); httpUtils.setHttpLinstener(new HttpUtils.HttpLinstener() { @Override public void getjsondata(String json) { Gson gson = new Gson(); Beans beans = gson.fromJson(json, Beans.class); List<Beans.DataBean> list01 = beans.getData(); Log.i("TAG",list01.size()+""); for (int i = 0; i <list01.size(); i++) { String icon = list01.get(i).getIcon(); ImageView imageView = new ImageView(getActivity()); ImageLoader.getInstance().displayImage(icon,imageView, MyApp.getOptins()); list_img.add(imageView); //获得小圆点 setRound(); } PagerAdapterOne adapterOne = new PagerAdapterOne(getActivity(),list_img,handler); viewPager.setAdapter(adapterOne); // handler.sendEmptyMessageDelayed(1,3000); //监听 viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { for (int i = 0; i < list_img1.size(); i++) { if (i==position%list_img.size()){ list_img1.get(i).setSelected(true); }else { list_img1.get(i).setSelected(false); } } } @Override public void onPageScrollStateChanged(int state) { } }); } }); } //获得小圆点 private void setRound() { for (int i = 0; i <list_img.size() ; i++) { ImageView imageView1 = new ImageView(getActivity()); imageView1.setImageResource(R.drawable.danji); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); layoutParams.setMargins(10,10,10,10); linearLayout.addView(imageView1,layoutParams); list_img1.add(imageView1); } list_img1.get(0).setSelected(true); } //请求不同数据进行判断 @Override public void setUserVisibleHint(boolean isVisibleToUser) { super.setUserVisibleHint(isVisibleToUser); Bundle arguments = getArguments(); if (isVisibleToUser && arguments.get("title").equals("头条")){ //获得数据 getData(); }else if (isVisibleToUser && arguments.get("title").equals("娱乐")){ relativeLayout.setVisibility(View.GONE); handler.removeCallbacksAndMessages(null); }else if (isVisibleToUser && arguments.get("title").equals("科技")){ relativeLayout.setVisibility(View.GONE); handler.removeCallbacksAndMessages(null); }else if (isVisibleToUser && arguments.get("title").equals("信息")){ relativeLayout.setVisibility(View.GONE); handler.removeCallbacksAndMessages(null); } } //获得数据 public void getData() { httpUtils = HttpUtils.getInstence(); String url = name_path; httpUtils.getdata(url); httpUtils.setHttpLinstener(new HttpUtils.HttpLinstener() { @Override public void getjsondata(String json) { Gson gson = new Gson(); MyBeans myBeans = gson.fromJson(json, MyBeans.class); List<MyBeans.DataBean> data = myBeans.getData(); list.addAll(data); adapter.notifyDataSetChanged(); } }); } }