android中GridView的用法示例

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>

      
     
     
     

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
GridView gridview = (GridView) findViewById(R.id.gridview);

//生成动态数组，并且转入数据
ArrayList> lstImageItem = new ArrayList>();
for(int i=0;i<10;i++)
{
 HashMap map = new HashMap();
 map.put("ItemImage", R.drawable.icon);//添加图像资源的ID
 map.put("ItemText", "NO."+String.valueOf(i));//按序号做ItemText
 lstImageItem.add(map);
}
//生成适配器的ImageItem <====> 动态数组的元素，两者一一对应
SimpleAdapter saImageItems = new SimpleAdapter(this, //没什么解释
     lstImageItem,//数据来源 
     R.layout.night_item,//night_item的XML实现
     
     //动态数组与ImageItem对应的子项    
     new String[] {"ItemImage","ItemText"}, 
     
     //ImageItem的XML文件里面的一个ImageView,两个TextView ID
     new int[] {R.id.ItemImage,R.id.ItemText});
//添加并且显示
gridview.setAdapter(saImageItems);
//添加消息处理
gridview.setOnItemClickListener(new ItemClickListener());
}

//当AdapterView被单击(触摸屏或者键盘)，则返回的Item单击事件
class ItemClickListener implements OnItemClickListener
{
 public void onItemClick(AdapterView<&＃63;> arg0,//The AdapterView where the click happened 
    View arg1,//The view within the AdapterView that was clicked
    int arg2,//The position of the view in the adapter
    long arg3//The row id of the item that was clicked
    ) {
 //在本例中arg2=arg3
 HashMap item=(HashMap) arg0.getItemAtPosition(arg2);
 //显示所选Item的ItemText
 setTitle((String)item.get("ItemText"));
 }
}