一、ExpandableList
Activity代码：
public class ExpandableListActivityDemoActivity extends ExpandableListActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//声明第一个list对象
List<Map<String,String>> groups=new ArrayList<Map<String,String>>();
Map<String,String> map1=new HashMap<String,String>();
map1.put("group", "中国");
groups.add(map1);
Map<String,String> map2=new HashMap<String,String>();
map2.put("group", "日本");
groups.add(map2);
//为第一个一级条目提供二级条目的数据
List<Map<String,String>> child1=new ArrayList<Map<String,String>>();
Map<String,String> child1data=new HashMap<String,String>();
child1data.put("child", "香港");
child1.add(child1data);
Map<String,String> child2data=new HashMap<String,String>();
child2data.put("child", "甘肃");
child1.add(child2data);
//为第二个一级条目提供二级条目的数据
List<Map<String,String>> child2=new ArrayList<Map<String,String>>();
Map<String,String> child22data=new HashMap<String,String>();
child22data.put("child", "北海道");
child2.add(child22data);
Map<String,String> child21data=new HashMap<String,String>();
child21data.put("child", "北海道");
child2.add(child21data);
List<List<Map<String,String>>> childs=new ArrayList<List<Map<String,String>>>();
childs.add(child1);
childs.add(child2);
SimpleExpandableListAdapter ada=new SimpleExpandableListAdapter(
this,
groups, R.layout.groups, new String[]{"group"}, new int[]{R.id.groups},
childs,R.layout.child,new String[]{"child"},new int[]{R.id.child}
);
setListAdapter(ada);
}
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
Toast.makeText(this, groupPosition+"|"+childPosition, Toast.LENGTH_LONG).show();
return super.onChildClick(parent, v, groupPosition, childPosition, id);
}
}
groups.xml代码：
<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/groups"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="No Data"
android:padding="15px"
android:layout_marginLeft="35px"
/>
</LinearLayout>
child.xml代码：
<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/child"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="No Data"
android:padding="10px"
/>
</LinearLayout>
main.xml代码:
<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="8dp"
android:paddingRight="8dp"
>
<ExpandableListViewandroid:id="@id/android:list"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>