Android开发学习笔记：浅谈GridView(4)

} 
     
 
 
main.xml
<?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"
    >
    <GridView  
        android:id="@+id/GridView1"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"
        android:columnWidth="90dp"
        android:numColumns="3"
        android:verticalSpacing="10dp"
        android:horizontalSpacing="10dp"
        android:stretchMode="columnWidth"
        android:gravity="center"         
        />
</LinearLayout>
效果图：

 
第二个例子：
MainActivity.java
package com.android.gridview2.activity; 
 
import java.util.ArrayList; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 
import android.app.Activity; 
import android.os.Bundle; 
import android.widget.GridView; 
import android.widget.SimpleAdapter; 
 
public class MainActivity extends Activity { 
 
       private GridView gv; 
       @Override
       protected void onCreate(Bundle savedInstanceState) { 
          // TODO Auto-generated method stub 
          super.onCreate(savedInstanceState); 
          setContentView(R.layout.gridview); 
 
          //准备要添加的数据条目 
          List<Map<String, Object>> items = new ArrayList<Map<String,Object>>(); 
          for (int i = 0; i < 9; i++) { 
            Map<String, Object> item = new HashMap<String, Object>();