模拟头条

//Activity布局

<?xml version="1.0" encoding="utf-8"?><android.support.v4.widget.DrawerLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"    android:layout_height="match_parent" tools:context="com.bwie.skn.conan_lianxi00.MainActivity">    <RelativeLayout        android:layout_width="match_parent"        android:layout_height="match_parent">    <LinearLayout        android:id="@+id/ll"        android:orientation="horizontal"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        >        <Button            android:id="@+id/b1"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="wrap_content"            android:text="首页"            android:onClick="b1"            android:textSize="18dp"            />        <Button            android:id="@+id/b2"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="wrap_content"            android:text="行情"            android:onClick="b2"            android:textSize="18dp"            />        <Button            android:id="@+id/b3"            android:layout_width="0dp"            android:layout_weight="1"            android:layout_height="wrap_content"            android:text="资讯"            android:onClick="b3"            android:textSize="18dp"            />    LinearLayout>    <FrameLayout        android:id="@+id/fl"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_above="@id/ll"        >FrameLayout>    RelativeLayout>    <LinearLayout        android:layout_width="300dp"        android:layout_height="match_parent"        android:orientation="vertical"        android:layout_gravity="left"        android:background="#5cbbf4"        >        <ImageView            android:layout_width="150dp"            android:layout_height="150dp"            android:src="@drawable/qwe"            android:layout_gravity="center_horizontal"            />        <TextView            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:gravity="center"            android:textSize="30dp"            android:text="我"            />        <TextView            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:gravity="center"            android:textSize="30dp"            android:text="是"            />        <TextView            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:gravity="center"            android:textSize="30dp"            android:text="侧"            />        <TextView            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:gravity="center"            android:textSize="30dp"            android:text="滑"            />        <TextView            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:gravity="center"            android:textSize="30dp"            android:text="栏"            />    LinearLayout>

android.support.v4.widget.DrawerLayout>

//Activity代码

package com.bwie.skn.conan_lianxi00;import android.graphics.Color;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.Button;import android.widget.FrameLayout;import com.bwie.skn.conan_lianxi00.feagment.Fragment1;import com.bwie.skn.conan_lianxi00.feagment.Fragment2;import com.bwie.skn.conan_lianxi00.feagment.Fragment3;public class MainActivity extends AppCompatActivity {    private FrameLayout fl;    private Button b1,b2,b3;    private Fragment1 fragment1;    private Fragment2 fragment2;    private Fragment3 fragment3;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();        initfragment();    }    private void initView() {        b1 = (Button) findViewById(R.id.b1);        b2 = (Button) findViewById(R.id.b2);        b3 = (Button) findViewById(R.id.b3);        b1.setTextColor(Color.RED);    }    private void initfragment() {        fragment1 = new Fragment1();        fragment2 = new Fragment2();        fragment3 = new Fragment3();        getSupportFragmentManager().beginTransaction().add(R.id.fl,fragment1).commit();        getSupportFragmentManager().beginTransaction().add(R.id.fl,fragment2).commit();        getSupportFragmentManager().beginTransaction().add(R.id.fl,fragment3).commit();        getSupportFragmentManager().beginTransaction().hide(fragment1).commit();        getSupportFragmentManager().beginTransaction().hide(fragment2).commit();        getSupportFragmentManager().beginTransaction().hide(fragment3).commit();        getSupportFragmentManager().beginTransaction().show(fragment1).commit();    }    public void b1(View view){        b1.setTextColor(Color.RED);        b2.setTextColor(Color.BLACK);        b3.setTextColor(Color.BLACK);        getSupportFragmentManager().beginTransaction().show(fragment1).commit();        getSupportFragmentManager().beginTransaction().hide(fragment2).commit();        getSupportFragmentManager().beginTransaction().hide(fragment3).commit();    }    public void b2(View view){        b1.setTextColor(Color.BLACK);        b2.setTextColor(Color.RED);        b3.setTextColor(Color.BLACK);        getSupportFragmentManager().beginTransaction().hide(fragment1).commit();        getSupportFragmentManager().beginTransaction().show(fragment2).commit();        getSupportFragmentManager().beginTransaction().hide(fragment3).commit();    }    public  void b3(View view){        b1.setTextColor(Color.BLACK);        b2.setTextColor(Color.BLACK);        b3.setTextColor(Color.RED);        getSupportFragmentManager().beginTransaction().hide(fragment1).commit();        getSupportFragmentManager().beginTransaction().hide(fragment2).commit();        getSupportFragmentManager().beginTransaction().show(fragment3).commit();    }}

//Fragment布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    >    <HorizontalScrollView        android:id="@+id/hsv"        android:layout_width="match_parent"        android:layout_height="40dp">        <LinearLayout            android:id="@+id/hll"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:orientation="horizontal"            >        LinearLayout>    HorizontalScrollView>    <android.support.v4.view.ViewPager        android:id="@+id/hvp"        android:layout_width="match_parent"        android:layout_height="match_parent">android.support.v4.view.ViewPager>LinearLayout>

//Fragment代码

package com.bwie.skn.conan_lianxi00.feagment;import android.graphics.Color;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentPagerAdapter;import android.support.v4.view.ViewPager;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.HorizontalScrollView;import android.widget.LinearLayout;import android.widget.TextView;import com.bwie.skn.conan_lianxi00.R;import java.util.ArrayList;import java.util.List;/** * author:Created by WangZhiQiang on 2017/10/11. */public class Fragment3 extends Fragment{    private View view;    private HorizontalScrollView hsv;    private LinearLayout hll;    private ViewPager hvp;    private List<TextView> textlist = new ArrayList<>();    final String[] titles = new String[]{"数据新闻","快讯","头条","精编广告","美股","港股","基金","理财"};    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        view = inflater.inflate(R.layout.fragment3,container,false);        return view;    }    @Override    public void onActivityCreated(@Nullable Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        initView();    }    private void initView() {        hsv =(HorizontalScrollView) view.findViewById(R.id.hsv);        hll =(LinearLayout) view.findViewById(R.id.hll);        hvp =(ViewPager) view.findViewById(R.id.hvp);        for(int i=0;i<titles.length;i++){            TextView textView = new TextView(getActivity());            textView.setText(titles[i]);            textView.setTextSize(18);            textView.setWidth(150);            textView.setId(i+1000);            textView.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View view) {                    int id = view.getId();                    hvp.setCurrentItem(id-1000);                }            });            if(i==0){                textView.setTextColor(Color.RED);            }else{                textView.setTextColor(Color.BLACK);            }            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);            layoutParams.setMargins(20,10,20,10);            //添加到布局            hll.addView(textView,layoutParams);            //添加到集合            textlist.add(textView);        }        hvp.setAdapter(new MAdapter(getActivity().getSupportFragmentManager()));        hvp.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {            @Override            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {                for (int i=0;i<textlist.size();i++){                    if(position==i){                        textlist.get(i).setTextColor(Color.RED);                    }else{                        textlist.get(i).setTextColor(Color.BLACK);                    }                }                TextView textView = textlist.get(position);                int i = textView.getWidth()+10;                hsv.scrollTo(i*position,0);            }            @Override            public void onPageSelected(int position) {            }            @Override            public void onPageScrollStateChanged(int state) {            }        });    }    class MAdapter extends FragmentPagerAdapter{        public MAdapter(FragmentManager fm) {            super(fm);        }        @Override        public Fragment getItem(int position) {            //http://mnews.gw.com.cn/wap/data/news/分类标识/page_页数.json            String[] title = new String[]{"xbsjxw","txs","toutiao","news/mobile/jbgg","news/mobile/mgxw","news/mobile/ggxw","news/mobile/jjxw","news/mobile/lcxw"};            return Fragment_zx.getinstans("http://mnews.gw.com.cn/wap/data/news/"+title[position]+"/page_");        }        @Override        public int getCount() {            return textlist.size();        }    }}

//viewpager——Fragment布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <com.bawei.wzq.wzlibrary.view.XListView        android:id="@+id/xlv"        android:layout_width="match_parent"        android:layout_height="match_parent"        >com.bawei.wzq.wzlibrary.view.XListView>LinearLayout>

//viewpaget_Fragment代码

package com.bwie.skn.conan_lianxi00.feagment;import android.os.AsyncTask;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import com.bawei.wzq.wzlibrary.view.XListView;import com.bwie.skn.conan_lianxi00.R;import com.bwie.skn.conan_lianxi00.bean.LvBean;import com.nostra13.universalimageloader.core.DisplayImageOptions;import com.nostra13.universalimageloader.core.ImageLoader;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;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;/** * author:Created by WangZhiQiang on 2017/10/11. *///http://news.xinhuanet.com/politics/2017-09/30/1121752088_15067520678551n.jpgpublic class Fragment_zx extends Fragment implements XListView.IXListViewListener{    View view;    private XListView xlv;    private List<LvBean> list = new ArrayList<>();    private MAdapter adapter;    private String title;    private int n=1;    private DisplayImageOptions options;    public static Fragment_zx getinstans(String title){        Fragment_zx fragment_zx = new Fragment_zx();        Bundle bundle = new Bundle();        bundle.putString("title",title);        fragment_zx.setArguments(bundle);        return fragment_zx;    }    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        view = inflater.inflate(R.layout.fragment_zx,container,false);        return view;    }    @Override    public void onActivityCreated(@Nullable Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        //sd卡        options = new DisplayImageOptions.Builder()                .cacheOnDisk(true)   //sd卡                .cacheInMemory(true)                .build();        //接收路径        Bundle arguments = getArguments();        title = arguments.getString("title");        //初始化控件        xlv =(XListView) view.findViewById(R.id.xlv);        //必须写        xlv.setPullLoadEnable(true);        xlv.setXListViewListener(this);        Log.e("Conan", title +"1.json");        adapter = new MAdapter();        xlv.setAdapter(adapter);        new MAsyncTask().execute(title +"1.json");    }    //网络获取    class MAsyncTask extends AsyncTask<String,Void,String>{        private StringBuilder builder;        @Override        protected String doInBackground(String... strings) {            try {                //获取url                URL url = new URL(strings[0]);                //请求网络                HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();                int code = urlConnection.getResponseCode();                //判断是否返回成功                if(code==200){                    //获取网络信息                    InputStream inputStream = urlConnection.getInputStream();                    BufferedReader bf = new BufferedReader(new InputStreamReader(inputStream));                    builder = new StringBuilder();                    String s = "";                    //拼接                    while((s=bf.readLine())!=null){                        builder.append(s);                    }                }            } catch (Exception e) {                e.printStackTrace();            }            return builder.toString();        }        @Override        protected void onPostExecute(String s) {            super.onPostExecute(s);            Log.e("Conan",s+"+-+-+-+-+-+-+-+-ss");            try {                JSONArray array = new JSONArray(s);                JSONObject object = array.optJSONObject(0);                JSONArray array2 = object.optJSONArray("data");                for(int i=0;i<array2.length();i++){                    String titleJson = array2.optJSONObject(i).optString("title");                    String summaryJson = array2.optJSONObject(i).optString("summary");                    String imgJson = array2.optJSONObject(i).optString("img");                    if (imgJson.equals("")){                        list.add(new LvBean(titleJson,summaryJson,"http://news.xinhuanet.com/politics/2017-09/30/1121752088_15067520678551n.jpg"));                    }else{                        list.add(new LvBean(titleJson,summaryJson,imgJson));                    }                }                adapter.notifyDataSetChanged();            } catch (JSONException e) {                e.printStackTrace();            }        }    }    //适配器    class MAdapter extends BaseAdapter{        @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;        }        class ViewHodler{            TextView title;            TextView summary;            ImageView img;        }        @Override        public View getView(int i, View view, ViewGroup viewGroup) {            int type = getItemViewType(i);                switch(type){                        case 0:                            ViewHodler vh;                            if (view==null){                                view = View.inflate(getActivity(),R.layout.lv_item1_layout,null);                                vh = new ViewHodler();                                vh.title =(TextView) view.findViewById(R.id.title);                                vh.summary =(TextView) view.findViewById(R.id.summary);                                vh.img = (ImageView) view.findViewById(R.id.img);                                view.setTag(vh);                            }else{                                vh = (ViewHodler) view.getTag();                            }                            vh.title.setText(list.get(i).getTitle());                            vh.summary.setText(list.get(i).getSummary());                            ImageLoader.getInstance().displayImage(list.get(i).getImg(),vh.img,options);                        break;                        case 1:                            ViewHodler vh1;                            if (view==null){                                view = View.inflate(getActivity(),R.layout.lv_item2_layout,null);                                vh1 = new ViewHodler();                                vh1.title =(TextView) view.findViewById(R.id.title);                                vh1.summary =(TextView) view.findViewById(R.id.summary);                                vh1.img = (ImageView) view.findViewById(R.id.img);                                view.setTag(vh1);                            }else{                                vh1 = (ViewHodler) view.getTag();                            }                            vh1.title.setText(list.get(i).getTitle());                            vh1.summary.setText(list.get(i).getSummary());                            ImageLoader.getInstance().displayImage(list.get(i).getImg(),vh1.img,options);                        break;                    }                    return view;        }        @Override        public int getItemViewType(int position) {            if (position%2==0){                return 0;            }else{                return 1;            }        }        @Override        public int getViewTypeCount() {            return 2;        }    }    public void onLoad(){        xlv.stopRefresh();        xlv.stopLoadMore();        xlv.setRefreshTime("刚刚");    }    //下拉刷新    @Override    public void onRefresh() {        list.clear();        new MAsyncTask().execute(title+"1.json");        onLoad();    }    @Override    public void onLoadMore() {        n++;        new MAsyncTask().execute(title+n+".json");        onLoad();    }}

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