SimpleAdapter用法_simpleadapter的用法

sim_adapter=new SimpleAdapter(context, data, resource, from, to);
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• context:上下文；

• data：需要展示的数据源，是map组成的list集合，每个Map对应ListView中的一行，每一个Map（键——值对）中的键名必须包含在from中所指定的键；

• resource：展示的布局文件，可以自己在layout设置xml文件去设置需要展示 的样式；

• from：Map中的键名；

• to：绑定数据视图的ID，与from成对应的关系。

public class MainActivity extends Activity {
   private ListView listView;
   private SimpleAdapter simple_adapter;
   private List< Map<String, Object>> dataList ;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);


		listView=(ListView) findViewById(R.id.listView);
		dataList=new ArrayList< Map<String, Object>>();

  
//适配器设置	
simple_adapter=new SimpleAdapter(this, getData(), R.layout.item, new
				String[] {"pic","text"}, new int[] {R.id.pic,R.id.text});
				
//启用适配器			
		 listView.setAdapter(simple_adapter);
		 
		}
		
//	设置数据源	
  private List<Map<String, Object>> getData() {
	  for(int i=0;i<20;i++) {
		  Map map=new HashMap<String, Object>();
		  map.put("pic", R.drawable.ic_launcher);
		  map.put("text", "慕课网"+i);
		  dataList.add(map);
	  }
	  
	  return dataList;
  };

}
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运行结果：

如果需要对每个Map进行监听，则可以设置implement OnItemClickListener接口进行监听，但别忘记加载监听器！

public class MainActivity extends ActionBarActivity implements OnItemClickListener{
	private GridView grid;
	private SimpleAdapter sim_adapter;
	private List<Map<String, Object>> list;

@Override
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_main);
	
	grid = (GridView) findViewById(R.id.gridView1);
	list=new ArrayList();
	
	sim_adapter = new SimpleAdapter(this, getData(), R.layout.item, new String[] { "pic", "text" },
			new int[] { R.id.image, R.id.text });

	grid.setAdapter(sim_adapter);
   grid.setOnItemClickListener(this);       //加载监听器
   
}

private List<Map<String, Object>> getData() {
	for (int i = 0; i < 10; i++) {
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("pic", R.drawable.ic_launcher);
		map.put("text", "app" + (i + 1));
		list.add(map);
		
	}

	return list;
	// TODO Auto-generated method stub

}
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//实现监听，加载动作

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long id) {

	Toast.makeText(this, "这是第"+(position+1)+"个应用", Toast.LENGTH_SHORT).show();
}
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}