ExpandableListView长按监听实现

多级列表(ExpandableListView)长按监听实现

再适配器中加代码：

     1.在getChildView（）中设置视图

       view.setTag(参数1（id1），父控件索引（groupPosition）);参数1：必须是本类中的具体id：例R.id.控件，

       view.setTag(参数1（id2），子控件索引(childPosition));参数1：必须是本类中的具体id：例 R.id.控件。

<pre name="code" class="java">public View getChildView(final int groupPosition, final int childPosition,boolean isLastChild, View convertView, ViewGroup parent) {View view = convertView;if (view == null) {//填充视图view = LayoutInflater.from(context).inflate(R.layout.music_child, null);vcHolder = new ViewChildHolder();/*子布局中的控件初始化*/view.setTag(vcHolder);}else{vcHolder = (ViewChildHolder) view.getTag();}     view.setTag(R.id.about_back_ImageView,groupPosition);//参数1：必须是本类中的具体id：例R.id.控件，     view.setTag(R.id.about_Email,childPosition);return view;}

     2.在getGroupView（）中设置视图       view.setTag(参数1(id1)，父控件索引（groupPosition）)；参数1：同上

       view.setTag(参数1(id2)，-1);参数1：同上

代码如下：

public View getGroupView(final int groupPosition, boolean isExpanded,View convertView, ViewGroup parent) {View view = convertView;if (view == null) {view = LayoutInflater.from(context).inflate(R.layout.music_group, null);                /*

                         初始化group中的控件*/

view.setTag(vGHolder);}else{vGHolder = (ViewGroupHolder) view.getTag();} view.setTag(R.id.about_back_ImageView,groupPosition);//参数1：必须是本类中的具体id：例R.id.控件，         view.setTag(R.id.about_Email,-1);return view;}

     3.在实例化ExpandableListView对象 .setOnItemLongClickListener（）中
    {
int groupPos = view.getTag(id1);
int childPos = view.getTag(id2);

if(childPos == -1){

  //长按父控件

         }else{

                  //长按子控件

         }

      }

代码如下：

ev_listview.setOnItemLongClickListener(new OnItemLongClickListener() {@Overridepublic boolean onItemLongClick(AdapterView<?> parent, View view,int position, long id) {// TODO Auto-generated method stubint groupPos = (Integer) view.getTag(R.id.about_back_ImageView);int childPos = (Integer) view.getTag(R.id.about_Email);if(childPos == -1){//长按父控件Toast.makeText(getContext(), "groupPos"+groupPos, Toast.LENGTH_SHORT).show();         }else{//长按子控件         Toast.makeText(getContext(), "groupPos"+groupPos+"childPos"+childPos, Toast.LENGTH_SHORT).show();         }return true;}});