Android下拉列表使用方法

private ExpandableListView expandableListView;

expandableListView = (ExpandableListView) findViewById(R.id.expendlist);
		  expandableListView.setAdapter(new MyExpandableListViewAdapter(this));
		  expandableListView.setGroupIndicator(null);


<ExpandableListView
        android:id="@+id/expendlist"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scrollbars="none"
        android:cacheColorHint="#00000000"
        android:divider="@null"
        android:listSelector="#00000000"
         >
    </ExpandableListView>