频道管理（获取网络数据）

来源：互联网发布：淘宝联盟买东西省钱编辑：程序博客网时间：2024/04/27 23:12

先来看看效果：

开始上代码，首先是布局：

MainActivity的布局：

<?xml version="1.0" encoding="utf-8"?><LinearLayout 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"    android:orientation="vertical"    tools:context="bawe.guotaian0920rikao.MainActivity">    <TextView        android:layout_width="match_parent"        android:layout_height="0dp"        android:text="我的频道"        android:textSize="40sp"        android:layout_weight="1"         />    <GridView        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="5"        android:id="@+id/gv_gd"        android:numColumns="3"        ></GridView>    <TextView        android:layout_width="match_parent"        android:layout_height="0dp"        android:text="推荐频道"        android:textSize="40sp"        android:layout_weight="1"        />    <GridView        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="5"        android:id="@+id/gv__wd"        android:numColumns="3"        ></GridView></LinearLayout>

======================================================================================

item布局：

    <?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"><TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:id="@+id/tv_name"    android:textSize="30sp"    /></LinearLayout>

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接下来

           MainActivity代码：

import android.app.Activity;import android.os.AsyncTask;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.TextView;import com.google.gson.Gson;import java.io.ByteArrayOutputStream;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import java.util.ArrayList;import java.util.List;public class MainActivity extends Activity {    GridView gv_wd, gv_gd;    channeldata cd;    List<String> list_top;    List<String> list;    private myadapter myadapter;    private myadapter1 myadapter1;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        gv_gd = (GridView) findViewById(R.id.gv_gd);        gv_wd = (GridView) findViewById(R.id.gv__wd);        initdata();        myadapter = new myadapter();        myadapter1 = new myadapter1();        gv_gd.setAdapter(myadapter);        gv_wd.setAdapter(myadapter1);    }    private void initdata() {        // TODO Auto-generated method stub        new AsyncTask<String, String, String>() {            @Override            protected String doInBackground(String... params) {                // TODO Auto-generated method stub                return getdata();            }            @Override            protected void onPostExecute(String result) {                // TODO Auto-generated method stub                super.onPostExecute(result);                Gson gson = new Gson();                cd = gson.fromJson(result, channeldata.class);                // Log.i("=====", cd.toString());                list_top = new ArrayList<String>();                list = new ArrayList<String>();                for (int i = 0; i < cd.getChannel().size(); i++) {                    list_top.add(cd.getChannel().get(i).getChannel_me());                    list.add(cd.getChannel().get(i).getChannel_more());                }                gv_gd.setOnItemClickListener(new OnItemClickListener() {                    @Override                    public void onItemClick(AdapterView<?> parent, View view,                                            int position, long id) {                        // TODO Auto-generated method stub                        list_top.add(list.get(position));                        list.remove(position);                        myadapter.notifyDataSetChanged();                        myadapter1.notifyDataSetChanged();                    }                });                gv_wd.setOnItemClickListener(new OnItemClickListener() {                    @Override                    public void onItemClick(AdapterView<?> parent, View view,                                            int position, long id) {                        // TODO Auto-generated method stub                        list.add(list_top.get(position));                        list_top.remove(position);                        myadapter.notifyDataSetChanged();                        myadapter1.notifyDataSetChanged();                    }                });                myadapter.notifyDataSetChanged();                myadapter1.notifyDataSetChanged();            }        }.execute();    }    class myadapter extends BaseAdapter {        @Override        public int getCount() {            // TODO Auto-generated method stub            if (list != null) {                return list.size();            }            return 0;        }        @Override        public Object getItem(int position) {            // TODO Auto-generated method stub            return list.get(position);        }        @Override        public long getItemId(int position) {            // TODO Auto-generated method stub            return 0;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            // TODO Auto-generated method stub            ViewHolder holder;            if (convertView == null) {                convertView = View.inflate(MainActivity.this, R.layout.item,                        null);                holder = new ViewHolder();                holder.tv_name = (TextView) convertView                        .findViewById(R.id.tv_name);                convertView.setTag(holder);            } else {                holder = (ViewHolder) convertView.getTag();            }            holder.tv_name.setText(list.get(position));            return convertView;        }    }    static class ViewHolder {        TextView tv_name;    }    class myadapter1 extends BaseAdapter {        private static final int Object = 0;        @Override        public int getCount() {            // TODO Auto-generated method stub            if (list_top != null) {                return list_top.size();            }            return 0;        }        @Override        public Object getItem(int position) {            // TODO Auto-generated method stub            return list_top.get(position);        }        @Override        public long getItemId(int position) {            // TODO Auto-generated method stub            return 0;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            // TODO Auto-generated method stub            ViewHolder1 holder1;            if (convertView == null) {                convertView = View.inflate(MainActivity.this, R.layout.item,                        null);                holder1 = new ViewHolder1();                holder1.tv_name1 = (TextView) convertView                        .findViewById(R.id.tv_name);                convertView.setTag(holder1);            } else {                holder1 = (ViewHolder1) convertView.getTag();            }            holder1.tv_name1.setText(list_top.get(position));            return convertView;        }    }    static class ViewHolder1 {        TextView tv_name1;    }    protected String getdata() {        // TODO Auto-generated method stub        String result = null;        try {            URL url = new URL(                    "http://result.eolinker.com/iYXEPGn4e9c6dafce6e5cdd23287d2bb136ee7e9194d3e9?uri=channel");            HttpURLConnection conn = (HttpURLConnection) url.openConnection();            int code = conn.getResponseCode();            if (code == 200) {                InputStream is = conn.getInputStream();                ByteArrayOutputStream bos = new ByteArrayOutputStream();                int len = -1;                byte[] buff = new byte[1024];                while ((len = is.read(buff)) != -1) {                    bos.write(buff, 0, len);                }                result = new String(bos.toByteArray());            }        } catch (Exception e) {            e.printStackTrace();        }        return result;    }}
最后写一个接口封装类就好了，接口http://result.eolinker.com/iYXEPGn4e9c6dafce6e5cdd23287d2bb136ee7e9194d3e9?uri=channel

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频道管理 （获取网络数据）

频道管理（获取网络数据）