Android GridView 横向滚动一行显示

都知道gridview和listview是android比较重要的数据组件，

接到一个横向显示数据的任务，头大半天，最后只能用gridview试试了。呵呵，费了N多脑细胞，搞定。

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布局文件main.xml

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 <?xml version="1.0" encoding="utf-8"?>  
 <LinearLayout   
     xmlns:android="http://schemas.android.com/apk/res/android"  
     android:orientation="vertical"   
     android:layout_width="fill_parent"  
     android:layout_height="fill_parent"  
     android:background="#FFFFFF"  
     android:gravity="center">  
     <TextView   
         android:layout_width="wrap_content"  
         android:layout_height="wrap_content"  
         android:text="向右滑动"  
         android:textColor="#000000"  
         android:textSize="20dip"/>  
     <HorizontalScrollView   
         android:layout_width="fill_parent"   
         android:layout_height="wrap_content"  
         android:background="#CCCCCC">  
         <LinearLayout   
             android:layout_width="fill_parent"  
             android:layout_height="wrap_content"  
              android:orientation="horizontal">  
             <GridView   
                 android:id="@+id/gridView"   
                 android:layout_width="fill_parent"  
                 android:layout_height="wrap_content" />  
         </LinearLayout>  
     </HorizontalScrollView>  
 </LinearLayout>  

类文件MainActivity.java

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 package com.test;  
 import java.util.ArrayList;  
 import java.util.List;  
 import android.app.Activity;  
 import android.content.Context;  
 import android.os.Bundle;  
 import android.os.Handler;  
 import android.os.Message;  
 import android.view.LayoutInflater;  
 import android.view.View;  
 import android.view.ViewGroup;  
 import android.view.Window;  
 import android.widget.AdapterView;  
 import android.widget.BaseAdapter;  
 import android.widget.GridView;  
 import android.widget.ImageView;  
 import android.widget.TextView;  
 import android.widget.AdapterView.OnItemClickListener;  
 import android.widget.LinearLayout.LayoutParams;  
 public class MainActivity extends Activity {  
     private GridView gridView;  
     private List<Item> itemList;  
     private MyListAdapter adapter;  
     private ItemClickEvent listener;  
     private MyHandler handler;  
       
     public void onCreate(Bundle savedInstanceState) {  
         super.onCreate(savedInstanceState);  
         requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);  
         setContentView(R.layout.main);  
         gridView = (GridView) findViewById(R.id.gridView);  
         handler = new MyHandler();  
         new Thread() {  
             public void run() {  
                 itemList = new ArrayList<Item>();  
                 for(int i=0;i<10;i++){  
                     Item item = new Item("北极熊生存如履薄冰" + i,"如果我们从现在开始就采取措施降低气温" + i);  
                     itemList.add(item);  
                 }  
                 Message msg = Message.obtain();  
                 msg.what = 1;  
                 handler.sendMessage(msg);  
             }  
         }.start();  
     }  
       
     private class MyHandler extends Handler{  
         public void handleMessage(Message msg) {  
             switch (msg.what) {  
             case 1:  
                 if ((itemList == null) || (itemList.size() == 0)) {  
                     return;  
                 } else {  
                     LayoutParams params = new LayoutParams(itemList.size() * (420 + 6), LayoutParams.WRAP_CONTENT);  
                     gridView.setLayoutParams(params);  
                     gridView.setColumnWidth(420);  
                     gridView.setHorizontalSpacing(6);  
                     gridView.setStretchMode(GridView.NO_STRETCH);  
                     gridView.setNumColumns(itemList.size());  
                       
                     adapter = new MyListAdapter(MainActivity.this);  
                     listener = new ItemClickEvent();  
                     gridView.setAdapter(adapter);  
                     gridView.setOnItemClickListener(listener);  
                 }  
                 break;  
             }  
         }  
     }  
       
     private class MyListAdapter extends BaseAdapter {  
         private final String TAG = "MyListAdapter";  
         private LayoutInflater mInflater;  
         private final Context context;  
         public MyListAdapter(Context context) {  
             this.context = context;  
             mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);  
         }  
         public int getCount() {  
             return itemList.size();  
         }  
         public Object getItem(int position) {  
             return itemList.get(position);  
         }  
         public long getItemId(int position) {  
             return position;  
         }  
         public View getView(int position, View convertView, ViewGroup parent) {  
             Item item = itemList.get(position);  
             CellHolder cellHolder;  
             if (convertView == null) {  
                 cellHolder = new CellHolder();  
                 convertView = mInflater.inflate(R.layout.item, null);  
                 cellHolder.ivIcon = (ImageView) convertView.findViewById(R.id.ivIcon);  
                 cellHolder.tvTitle = (TextView) convertView.findViewById(R.id.tvTitle);  
                 cellHolder.tvContent = (TextView) convertView.findViewById(R.id.tvContent);  
                 convertView.setTag(cellHolder);  
             }else{  
                 cellHolder = (CellHolder) convertView.getTag();  
             }  
             cellHolder.ivIcon.setImageResource(R.drawable.bear);  
             cellHolder.tvTitle.setText(item.getTitle());  
             cellHolder.tvContent.setText(item.getContent());  
             return convertView;  
         }  
     }  
       
     private class CellHolder{  
         ImageView ivIcon;  
         TextView tvTitle;  
         TextView tvContent;  
     }  
       
     private class ItemClickEvent implements OnItemClickListener{  
         public void onItemClick(AdapterView<?> parent, View view, int position,  
                 long id) {  
               
         }  
           
     }  
 }  

Item

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 <?xml version="1.0" encoding="utf-8"?>  
 <LinearLayout   
     xmlns:android="http://schemas.android.com/apk/res/android"  
     android:orientation="horizontal"   
     android:layout_width="fill_parent"  
     android:layout_height="wrap_content"  
     android:padding="10dip"  
     android:background="#FFFFFF">  
     <ImageView   
         android:id="@+id/ivIcon"  
         android:layout_width="wrap_content"  
         android:layout_height="wrap_content"  
         android:src="@drawable/icon"  
         android:layout_marginRight="10dip"/>  
     <LinearLayout   
         android:orientation="vertical"   
         android:layout_width="fill_parent"  
         android:layout_height="wrap_content"  
         >  
         <TextView   
             android:id="@+id/tvTitle"  
             android:layout_width="wrap_content"  
             android:layout_height="wrap_content"  
             android:text="标题标题标题标题标题"  
             android:textColor="#000000"  
             android:textSize="20dip"  
             android:textStyle="bold"/>     
         <TextView   
             android:id="@+id/tvContent"  
             android:layout_width="wrap_content"  
             android:layout_height="wrap_content"  
             android:text="内容内容内容内容内容内容内容"  
             android:textColor="#000000"/>      
     </LinearLayout>     
 </LinearLayout>  