注意ArrayList<Map<String,Object>>()，里面的數據是應該是不同的map，你這個只是一個map

new String[]{"img1","tv1"}里是根據鍵名取出對應的值，正確的做法應該是遍歷生成多個map：

public class SimpleAdapterActivity extends Activity {

?? ?private SimpleAdapter sim_adapter;

?? ?private List<Map<String, Object>> datalist;

?? ?private ListView lv;

?? ?@Override
?? ?protected void onCreate(Bundle savedInstanceState) {

?? ??? ?super.onCreate(savedInstanceState);
?? ??? ?setContentView(R.layout.activity_main);
?? ??? ?lv = (ListView) findViewById(R.id.lv1);
?? ??? ?// 新建一個map鍵值對數據集合
?? ??? ?datalist = new ArrayList<Map<String, Object>>();
?? ??? ?// 新建一個適配器 適配器加載數據源
?? ??? ?sim_adapter = new SimpleAdapter(this, getData(), R.layout.simple,
?? ??? ??? ??? ?new String[] { "img", "tv" },
?? ??? ??? ??? ?new int[] { R.id.img1, R.id.tv1 });
?? ??? ?// 視圖加載適配器
?? ??? ?lv.setAdapter(sim_adapter);
?? ?}
?? ?// 數據源
?? ?private List<Map<String, Object>> getData() {
?? ??? ?int[] pic = { R.drawable.img1, R.drawable.img2, R.drawable.img3,
?? ??? ??? ??? ?R.drawable.img4 };
?? ??? ?String[] st = { "可愛蘿莉", "功夫兔", "小狐貍", "元氣少女" };
?? ??? ?Map<String, Object> map = null;
?? ??? ?for (int i = 0; i < 4; i++) {
?? ??? ??? ?map = new HashMap<String, Object>();// 創建一個鍵值對對象
?? ??? ??? ?map.put("img", pic[i]);// 添加鍵-值對
?? ??? ??? ?map.put("tv", st[i]);
?? ??? ??? ?datalist.add(map);
?? ??? ?}
?? ??? ?return datalist;
?? ?}

}

我以為只要把數據放進去就行了，應該怎么遍歷呢

你是怎么遍歷的？

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