adapterView及子类

1、使用arrayadapter创建ListView

public class ArrayAdapterActivity extends ListActivity {

     @Override

     public void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         String[] str = {"1","2","3","4","5","6"};
//android.R.layout.simple_expandable_list_1  android提供布局文件作为列表组件

         ArrayAdapter<String> adaper = new ArrayAdapter<String>(getApplicationContext(),

                 android.R.layout.simple_expandable_list_item_1, str);

     }

}

2、使用simpleAdapter创建ListView

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="horizontal" >

<ImageView

        android:id="@+id/img"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_margin="5dp"

        android:contentDescription="@string/app_name" />
<TextView

        android:id="@+id/title"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:textColor="#ffffff"

        android:textSize="20sp" />
</LinearLayout>

public class MainActivity extends ListActivity {

@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        // 对象中那些key生成对应value的列表项

        SimpleAdapter adapter = new SimpleAdapter(this, getData(),

                R.layout.simple, new String[] { "title", "img" }, new int[] {

                        R.id.title, R.id.img });

        setListAdapter(adapter);

    }
private List<Map<String, Object>> getData() {

        // map.put(参数名字,参数值)

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

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

        map.put("title", "摩托罗拉");

        map.put("img", R.drawable.ic_launcher);

        list.add(map);
map = new HashMap<String, Object>();

        map.put("title", "诺基亚");

        map.put("img", R.drawable.ic_launcher);

        list.add(map);
map = new HashMap<String, Object>();

        map.put("title", "三星");

        map.put("img", R.drawable.ic_launcher);

        list.add(map);

        return list;
}
}

adapterView及子类