PullToFreshListView上拉刷新 + banner轮播+侧拉

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1.Gson
2.universal-image-loader-1.9.3-with-sources.jar
3.File–>Project Stucture–>app后面脑补
4.File–>New –>Import Module
5.清单文件 res下面
6.添加依赖库 Android下 Gradle app
compile ‘com.youth.banner:banner:1.4.9’

layout
activity_main.xml

<?xml version="1.0" encoding="utf-8"?><android.support.v4.widget.DrawerLayout  xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    xmlns:ptr="http://schemas.android.com/apk/res-auto"    tools:context="bwei.com.example.lenovo.httpurlconnection.MainActivity">    <LinearLayout        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical">        <!--  banner 网络加载图片无限轮播-->        <com.youth.banner.Banner            android:layout_width="match_parent"            android:layout_height="200dp"            android:id="@+id/banner"            ></com.youth.banner.Banner>        <!--  上拉刷新,下拉加载-->        <com.handmark.pulltorefresh.library.PullToRefreshListView            android:layout_width="match_parent"            android:layout_height="match_parent"            android:id="@+id/pull_lv"            ptr:ptrDrawable="@drawable/default_ptr_flip"            ptr:ptrAnimationStyle="flip"            ptr:ptrHeaderBackground="#383838"            ptr:ptrHeaderTextColor="#FFFFFF" >     </com.handmark.pulltorefresh.library.PullToRefreshListView>    </LinearLayout>    <!--  侧拉-->    <FrameLayout            android:id="@+id/drawer"            android:layout_width="300dp"            android:layout_height="match_parent"            android:layout_gravity="start"            android:background="#f79"            ></FrameLayout></android.support.v4.widget.DrawerLayout>

item.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <ImageView        android:id="@+id/imageView"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:src="@mipmap/ic_launcher"/>    <TextView        android:id="@+id/tv"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="神经病"        android:layout_alignBottom="@+id/imageView"        android:layout_toRightOf="@+id/imageView"        android:layout_toEndOf="@+id/imageView"        android:layout_marginLeft="47dp"        android:layout_marginStart="47dp"        android:layout_marginBottom="10dp" /></RelativeLayout>

left.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#f00"></LinearLayout>

drawable
ic_empty.xml

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"></selector>

ic_error.xml

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"></selector>

ic_stub.xml

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"></selector>

MainActivity

package bwei.com.example.lenovo.httpurlconnection;import android.os.Handler;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import com.youth.banner.Banner;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.util.ArrayList;import java.util.List;import bwei.com.example.lenovo.httpurlconnection.Utils.Mytask;public class MainActivity extends AppCompatActivity {    private List<Bean.NewslistBean> sjlist = new ArrayList<>();    private PullToRefreshListView pull;    int pageIndex =1;    private Handler myHandler = new Handler();    private List<Bean.NewslistBean> newslist;    private  MyAdapter adapter;    private Banner  banner;    private List<String > list = new ArrayList<String>();    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        pull = (PullToRefreshListView) findViewById(R.id.pull_lv);        banner = (Banner) findViewById(R.id.banner);        Mytask mytask = new Mytask(new Mytask.Icallbacks() {            @Override            public void updateUiByjson(String jsonstr) {                Gson gson = new Gson();                Bean bean = gson.fromJson(jsonstr, Bean.class);                newslist = bean.getNewslist();                for (int i = 0;i< newslist.size();i++){                    list.add(newslist.get(i).getPicUrl());                }                //设置图片加载器                banner.setImageLoader(new MImageLoader());                //设置含有图片路径的集合                banner.setImages(list);                //设置延迟时间                banner.setDelayTime(3000);                //是否自动轮播                banner.isAutoPlay(true);                //开启                banner.start();            }        });        mytask.execute("https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10&page=");       // getSupportFragmentManager().beginTransaction().add(R.id.drawer,new FragmentLeft()).commit();        initLv();        initData();    }    private void initData() {       Mytask myTask = new Mytask(new Mytask.Icallbacks() {            @Override            public void updateUiByjson(String jsonstr) {                Gson gson = new Gson();                Bean bean = gson.fromJson(jsonstr, Bean.class);                List<Bean.NewslistBean> newslist = bean.getNewslist();                sjlist.addAll(newslist);                Log.d("zzz",newslist+"newlist");                setAdapter();            }        });        myTask.execute("https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10&page="+pageIndex);    }    private void initLv() {        //设置刷新模式 ,both代表支持上拉和下拉,pull_from_end代表上拉,pull_from_start代表下拉        pull.setMode(PullToRefreshBase.Mode.BOTH);/*这里通过getLoadingLayoutProxy 方法来指定上拉和下拉时显示的状态的区别,第一个true 代表下来状态 ,第二个true 代表上拉的状态如果想区分上拉和下拉状态的不同,可以分别设置*/        ILoadingLayout startLabels = pull.getLoadingLayoutProxy(true, false);        startLabels.setPullLabel("下拉刷新");        startLabels.setRefreshingLabel("正在拉");        startLabels.setReleaseLabel("放开刷新");        ILoadingLayout endLabels = pull.getLoadingLayoutProxy(false, true);        endLabels.setPullLabel("上拉刷新");        endLabels.setRefreshingLabel("正在载入...");        endLabels.setReleaseLabel("放开刷新...");/*如果Mode设置成Mode.BOTH,需要设置刷新Listener为OnRefreshListener2,并实现onPullDownToRefresh()、onPullUpToRefresh()两个方法。  如果Mode设置成Mode.PULL_FROM_START或Mode.PULL_FROM_END,需要设置刷新Listener为OnRefreshListener,同时实现onRefresh()方法。  当然也可以设置为OnRefreshListener2,但是Mode.PULL_FROM_START的时候只调用onPullDownToRefresh()方法,Mode.PULL_FROM_END的时候只调用onPullUpToRefresh()方法.  加载数据完成后 必须 调用下 onRefreshComplete() 完成关闭 header,footer视图*/        pull.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {            @Override            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {//下拉刷新的回调                //下拉刷新的数据,显示在listview列表的最上面                addtoTop();                myHandler.postDelayed(new Runnable() {                    @Override                    public void run() {                        //刷新完成,必须在异步下完成                        pull.onRefreshComplete();                        //刷新适配器                        setAdapter();                    }                },1000);            }            @Override            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {//上拉加载的回调                //加载更多的数据,添加到集合列表的最后面                addtoBottom();                myHandler.postDelayed(new Runnable() {                    @Override                    public void run() {                        //刷新完成,必须在异步下完成                        pull.onRefreshComplete();                        //刷新适配器                        setAdapter();                    }                },1000);            }        });    }    //下拉加载    public void addtoTop(){        Mytask myTask=new Mytask(new Mytask.Icallbacks() {            @Override            public void updateUiByjson(String jsonstr) {                Gson gson=new Gson();                Bean bean=gson.fromJson(jsonstr, Bean.class);                //添加到大集合对象中                List<Bean.NewslistBean> newslist = bean.getNewslist();                sjlist.addAll(0,newslist);                //设置适配器                setAdapter();                Log.d("z1",newslist+"newlist");            }        });        myTask.execute("https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10&page=1" );    }    //上拉刷新    public void addtoBottom(){        pageIndex++;        Mytask myTask=new Mytask(new Mytask.Icallbacks() {            @Override            public void updateUiByjson(String jsonstr) {                Gson gson=new Gson();                Bean bean=gson.fromJson(jsonstr, Bean.class);                List<Bean.NewslistBean> newslist = bean.getNewslist();                //添加到大集合对象中                sjlist.addAll(0,newslist);                Log.d("zzzz2",newslist+"newlist");                //设置适配器                setAdapter();            }        });        myTask.execute("https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10&page="+pageIndex);    }    public void setAdapter(){        if(adapter==null){            adapter=new MyAdapter();            pull.setAdapter(adapter);        }else{            adapter.notifyDataSetChanged();        }    }    class MyAdapter extends BaseAdapter {        @Override        public int getCount() {            return sjlist.size();        }        @Override        public Object getItem(int i) {            return sjlist.get(i);        }        @Override        public long getItemId(int i) {            return i;        }        @Override        public View getView(int i, View view, ViewGroup viewGroup) {            ViewHodler holder;            if (view==null){                holder = new ViewHodler();                view= View.inflate(MainActivity.this, R.layout.item, null);                holder.imageView = (ImageView) view.findViewById(R.id.imageView);                holder.tv = (TextView) view.findViewById(R.id.tv);                view.setTag(holder);            }else{                holder = (ViewHodler) view.getTag();                holder.tv.setText(sjlist.get(i).getTitle());                ImageLoader.getInstance().displayImage(sjlist.get(i).getPicUrl(),holder.imageView);            }            return view;        }        class  ViewHodler{            private ImageView imageView;            private TextView tv;        }    }}

Bean

package bwei.com.example.lenovo.httpurlconnection;import java.util.List;/** * Created by lenovo on 2017/10/25. */public class Bean {    /**     * code : 200     * msg : success     * newslist : [{"ctime":"2017-10-25","title":"西方或仍在迷茫,中国已八个\u201c明确\u201d","description":"海外网","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990598.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889630&signature=83-E1YbfzVxRLIRiWKtnbvDphVmVfw*QU5m0*DKPkyjdSgCvpHCS7Pti6ncE5MzSL1rDdh*5JgaDqmh2dMQ*GDKsgCYLx-tJY0*vWcHt70Y="},{"ctime":"2017-10-25","title":"房地产新时代:房屋租赁开启蓝海","description":"第一财经网","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990601.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889630&signature=FjP*h0If2SxbRoT-atlihCyDWY6-UpQ-eDjlw22rspRvyBvrHItLof6SvRBpla50jr4t8Hw7C8SddMhEdJyazQchkh-qi6ivzyYTL2-gzd0="},{"ctime":"2017-10-25","title":"历史的选择 人民的选择 全党的选择","description":"海外网","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-37632835.static/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889629&signature=uHTwsd4NnOGMd4RaGkgL0*S7DgFBhepEY9Ljrw1*dLMt1G-BVqmL4y3vZVJiEjA6XXjZy4Sie*p1wARsngAf6OOs9y1o46G*bbpLiWMgU5s="},{"ctime":"2017-10-25","title":"CBA\u201c姚\u201d赛季开场,职业化走出飞升曲线","description":"第一财经网","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990724.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889629&signature=wNkKRyMyIRiRXEECfCMVa3l0ZBl4OeYZ172StUtlM*WdJ5fPaH*bT5B0wQWQd6HGeMKMhUF0lNFWpQjk85Aya5050Pzp5JEfpAtTRoS7ZPU="},{"ctime":"2017-10-25","title":"管你速度再快,没刹车只能抓瞎","description":"大家车言论","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990563.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889629&signature=alOTmOeX54JAFXi7VWMZl*No-qcdIfJJE4-LJsw5wb5vQx6FPEv5VYQpokXn50Lj0wpve8xfyqd-vlBaEr5B*y3a1Rk1d*2xiczaJWK00kE="},{"ctime":"2017-10-25","title":"羊身上一物治耳鸣耳聋,一千四百年前被名医相中,终于流传开","description":"微门诊","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990453.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889629&signature=u-GpZMcMn1hwQondm7WXD2QrecDezYHHtz-wHaGuLGHNyk49PCxky5r2Cj*fxgRt30FQca6cnXXynCt78g49qIA24DTmW-92XgKVdipyg6g="},{"ctime":"2017-10-25","title":"治鼻炎,此方是\u201c鼻祖\u201d,冬天最常用,流行七百多年","description":"微门诊","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990454.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889628&signature=nIjbIU865ZL*0xxHgNHIzClHhREY3AKtiSkcAv*4cT2zOFdxJsBlkbUKl4pRLfPkJ8xb8475IqyMZjYHevYFB6t7LyafeoEZTrbu6lfxsw0="},{"ctime":"2017-10-25","title":"买房容易验房难!这些陷阱你要注意","description":"腾讯财经","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990475.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889628&signature=vKw9FtCbTJg-QL0uTRmzzh079IX2gdSzxlqarrAhQhUjaNL-mGx4iO9G-Ry0EouzNWcP6reDmOcL7tqufr8W730XSMKRZqJ*zNoQHgrF3g8="},{"ctime":"2017-10-25","title":"日本又双叒出造假丑闻!这次连\u201c神户牛肉\u201d也沦陷了?","description":"腾讯财经","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990473.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889628&signature=vttOVoCgI0W0nuvt1YVrou0N0ZJ0176G3yPZXpPB32bjQvmLrGVEsCcL4yZlpr*N-guO-kFDJUkqqHZo-*VUVMmSTcYWvK5cS5j*YxvANNk="},{"ctime":"2017-10-25","title":"这种理财产品在中国终于出现了! 1块钱也可投资房产?","description":"腾讯财经","picUrl":"https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990496.jpg/640","url":"https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889627&signature=BcFgnd0Nk9Y2HSbAS9QTBewByeUDLpx94dxYbH2rTs9I2*T5cGppSO4*c1r1*LYCQbtam*mr9TnGkVE-BBpQgQJtq6eESm2wGqW0Sm4pGZg="}]     */    private int code;    private String msg;    private List<NewslistBean> newslist;    public int getCode() {        return code;    }    public void setCode(int code) {        this.code = code;    }    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }    public List<NewslistBean> getNewslist() {        return newslist;    }    public void setNewslist(List<NewslistBean> newslist) {        this.newslist = newslist;    }    public static class NewslistBean {        /**         * ctime : 2017-10-25         * title : 西方或仍在迷茫,中国已八个“明确”         * description : 海外网         * picUrl : https://zxpic.gtimg.com/infonew/0/wechat_pics_-55990598.jpg/640         * url : https://mp.weixin.qq.com/s?src=16&ver=447&timestamp=1508889630&signature=83-E1YbfzVxRLIRiWKtnbvDphVmVfw*QU5m0*DKPkyjdSgCvpHCS7Pti6ncE5MzSL1rDdh*5JgaDqmh2dMQ*GDKsgCYLx-tJY0*vWcHt70Y=         */        private String ctime;        private String title;        private String description;        private String picUrl;        private String url;        public String getCtime() {            return ctime;        }        public void setCtime(String ctime) {            this.ctime = ctime;        }        public String getTitle() {            return title;        }        public void setTitle(String title) {            this.title = title;        }        public String getDescription() {            return description;        }        public void setDescription(String description) {            this.description = description;        }        public String getPicUrl() {            return picUrl;        }        public void setPicUrl(String picUrl) {            this.picUrl = picUrl;        }        public String getUrl() {            return url;        }        public void setUrl(String url) {            this.url = url;        }    }}

ImageLoder

package bwei.com.example.lenovo.httpurlconnection;import android.app.Application;import android.graphics.Bitmap;import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiscCache;import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;import com.nostra13.universalimageloader.cache.memory.impl.LruMemoryCache;import com.nostra13.universalimageloader.core.DisplayImageOptions;import com.nostra13.universalimageloader.core.ImageLoader;import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;import java.io.File;/** * Created by lenovo on 2017/10/25. */public class ImageLoder extends Application {    @Override    public void onCreate() {        super.onCreate();//storage/sdcard/data/<package>/cache        //sd/mycache/        File cacheDir=this.getExternalCacheDir();//自定义缓存路径        ImageLoaderConfiguration configuration=new ImageLoaderConfiguration.Builder(this)                .memoryCache(new LruMemoryCache(2 * 1024 * 1024))//设置内存缓存区大小                .memoryCacheSize(10 * 1024 * 1024)//设置缓存区大小                .memoryCacheExtraOptions(520,520)//缓存图片最大的宽度与高度 px                .diskCacheSize(50*1024*1024)//设置sd卡缓存的空间大小                .diskCacheFileNameGenerator(new Md5FileNameGenerator())//sd卡缓存图片的命名 使用md5加密方式                .diskCache(new UnlimitedDiscCache(cacheDir))//自定义sd卡的缓存路径                .diskCacheFileCount(100)//缓存文件的最大数量                .writeDebugLogs()//写入日志                .threadPoolSize(3)//线程                .build();        //对imageLoader进行初使化        ImageLoader.getInstance().init(configuration);    }    public final static DisplayImageOptions getDefaultDisplayOption() {        DisplayImageOptions options = new DisplayImageOptions.Builder()                .cacheInMemory(true)//进行内存缓存                .cacheOnDisk(true)//进行sd卡缓存                .showImageOnLoading(R.drawable.ic_stub) // 设置正在下载中的图片                .showImageForEmptyUri(R.drawable.ic_empty) //没有请求地址时                .showImageOnFail(R.drawable.ic_error)//下载错误时                .bitmapConfig(Bitmap.Config.RGB_565).build();        //设置图片质量build(); // 创建配置过得DisplayImageOption对象        return options;    }}

Utils
Mytask

package bwei.com.example.lenovo.httpurlconnection.Utils;import android.os.AsyncTask;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.ProtocolException;import java.net.URL;/** * Created by lenovo on 2017/10/25. */public class Mytask extends AsyncTask<String,Void,String>{    //申请一个接口类对象    private  Icallbacks icallbacks;    //将无参构造设置成私有的,使之在外部不能够调用    private Mytask(){}    //定义有参构造方法    public Mytask(Icallbacks icallbacks) {        this.icallbacks = icallbacks;    }    @Override    protected String doInBackground(String... strings) {        String str="";        try {            //使用HttpUrlConnection            URL url=new URL(strings[0]);            HttpURLConnection connection=(HttpURLConnection) url.openConnection();            connection.setRequestMethod("GET");            connection.setReadTimeout(5000);            connection.setConnectTimeout(5000);            if(connection.getResponseCode()==200){                InputStream inputStream=connection.getInputStream();                //调用工具类中的静态方法                str=StreamToString.streamToStr(inputStream,"utf-8");            }        } catch (MalformedURLException e) {            e.printStackTrace();        }catch (IOException e){            e.printStackTrace();        }        return str;        }        @Override        protected void onPostExecute(String s) {            super.onPostExecute(s);            //解析,封装到bean,更新ui组件            icallbacks.updateUiByjson(s);        }        //定义一个接口        public interface Icallbacks{            /**             * 根据回传的json字符串,解析并更新页面组件             * @param jsonstr             */            void updateUiByjson(String jsonstr);        }}

StreamToString

package bwei.com.example.lenovo.httpurlconnection.Utils;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;/** * Created by lenovo on 2017/10/25. */public class StreamToString {    public static String streamToStr(InputStream inputStream, String chartSet){        StringBuilder builder=new StringBuilder();        try {            BufferedReader br=new BufferedReader(new InputStreamReader(inputStream,chartSet));            String con;            while ((con=br.readLine())!=null){                builder.append(con);            }            br.close();            return builder.toString();        } catch (Exception e) {            e.printStackTrace();        }        return "";    }}

MImageLoader

package bwei.com.example.lenovo.httpurlconnection;import android.content.Context;import android.widget.ImageView;import com.youth.banner.loader.ImageLoader;/** * Created by lenovo on 2017/10/25. */public class MImageLoader extends ImageLoader{    public void displayImage(Context context, Object path, ImageView imageView) {        com.nostra13.universalimageloader.core.ImageLoader instance = com.nostra13.universalimageloader.core.ImageLoader.getInstance();        instance.displayImage((String) path, imageView);    }}

FragmentLeft

package bwei.com.example.lenovo.httpurlconnection;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/** * Created by lenovo on 2017/10/25. */class FragmentLeft extends Fragment {    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View view = View.inflate(getActivity(),R.layout.left,null);        return view;    }}
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