ListView

public class MainActivity extends ActionBarActivity {

    private ListView lv;
    private ArrayAdapter arr_adapter;
    private String [] contents = null;
    private SimpleAdapter sim_adapter;
    private List<Map<String,Object>>  datalist;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        contents = new String[]{"葫芦娃144444444445555555555521111111111211111111122222222222222223333333333333332112222222222222","葫芦娃1","葫芦娃1","葫芦娃1","葫芦娃1","葫芦娃1","葫芦娃1","葫芦娃1","葫芦娃1","葫芦娃123","葫芦娃1","葫芦娃222","葫芦娃1","葫芦娃333","葫芦娃1","葫芦娃1"};
        arr_adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1 ,contents);
        lv = (ListView) findViewById(R.id.lv1);
        datalist = new ArrayList<Map<String,Object>> ();//注意初始化，
        //sim_adapter = new SimpleAdapter(context, data, resource, from, to);
        sim_adapter = new SimpleAdapter(this, getData(), R.layout.item, new String []{"pic","text"}, new int []{R.id.pic,R.id.text});
　　　　　　//每个参数的具体含义
        lv.setAdapter(sim_adapter);
    }
    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", "葫芦娃"+i+"号");
            datalist.add(map);
        }
        return datalist;
    }


  
}