SimpleAdapter入门

public class MainActivity extends Activity {

      private ListView lv;

      

      @Override

      protected void onCreate(Bundle savedInstanceState) {

             super.onCreate(savedInstanceState);

            setContentView(R.layout. activity_main);

            

             lv=(ListView) findViewById(R.id. lv);    //拿到listView控件

            

             //定义一个list集合,集合中存放的是每个条目item     item是一个map类型数据

            List<Map<String, Object>> data= new ArrayList<Map<String,Object>>();

            

            Map<String, Object> temp1= new HashMap<String, Object>();      //设置条目信息

            temp1.put( "icon", R.drawable. aa);

            temp1.put( "name", "功能1");

            

            Map<String, Object> temp2= new HashMap<String, Object>();

            temp2.put( "icon", R.drawable. kkx);

            temp2.put( "name", "功能2");

            

            

            Map<String, Object> temp3= new HashMap<String, Object>();

            temp3.put( "icon", R.drawable. logo);

            temp3.put( "name", "功能3");

            

            data.add(temp1);    //将装有条目信息的map装进list集合中

            data.add(temp2);

            data.add(temp3);

            

            

            

          //设置适配器       1.上下文      2.装有item信息map的list  3.寻找map中key对应的数据   4.找到要改变的控件

             lv.setAdapter( new SimpleAdapter( this, data, R.layout. item, new String[]{ "icon", "name"}, new int[]{R.id. iv_info,R.id. tv_info}));                       

            

            

      }

      @Override

      public boolean onCreateOptionsMenu(Menu menu) {

             // Inflate the menu; this adds items to the action bar if it is present.

            getMenuInflater().inflate(R.menu. main, menu);

             return true;

      }