android ExpandableListView 为Group与Child添加菜单

为ExpandableListVIew的Group与Child添加不同菜单有两种方式：

1、通过ShowDialog

这种方式是通过适配器为VIew添加Tag然后在ExpandableListView的OnItemLongClickListener获取View的Tag来判断是Group或Child，然后弹出不同的菜单对话框。

代码如下：

@Override
    public View getChildView(final int arg0, final int arg1, boolean arg2, View view,
            ViewGroup arg4) {
        if(view==null){
            view = inflater.inflate(R.layout.team_layout_main_list_item, null);
        }
        TextView textView = (TextView) view.findViewById(R.id.team_main_list_username);
        ImageView imageView = (ImageView) view.findViewById(R.id.team_main_list_head);
        imageView.setImageResource(PrortaitUtils.conversionIdToRes(((UserInfo)getChild(arg0, arg1)).getPortrait()));
        view.setTag(R.id.team_singlechat_id_send, arg0);
        view.setTag(R.id.team_singlechat_id_close, arg1);       //备注1
        textView.setText(((UserInfo)getChild(arg0, arg1)).getUsername());
        textView.setTextColor(Color.BLACK);
        view.setBackgroundColor(Color.rgb(247, 243, 247));
        view.setBackgroundResource(R.drawable.team_item_bg_selector);
        return view;
    }

 

@Override
    public View getGroupView(int arg0, boolean arg1, View groupView, ViewGroup arg3) {
        if(groupView == null){
            groupView = inflater.inflate(R.layout.team_layout_main_list_group, null);
        }
        TextView groupTextView = (TextView) groupView.findViewById(R.id.team_main_list_teamname);
        ImageView groupImageView = (ImageView) groupView.findViewById(R.id.team_main_list_into);
        groupImageView.setImageResource(R.drawable.team_into1);
        if(arg1){
            groupImageView.setImageResource(R.drawable.team_into2);
        }
        groupView.setTag(R.id.team_singlechat_id_send, arg0);
        groupView.setTag(R.id.team_singlechat_id_close, -1);        //备注2
        groupTextView.setText(getGroup(arg0).toString());
        groupTextView.setTextColor(Color.BLACK);
        return groupView;
    }

 

//长按条目，包括group和child
    onLineList.setOnItemLongClickListener(new OnItemLongClickListener() {

        @Override
        public boolean onItemLongClick(AdapterView<?> arg0, final View arg1,
                int arg2, long arg3) {
            longClickListIteam(arg1);
            return true;
        }
    });
     /**
      * 长按list中的某一个条目
      */
     private void longClickListIteam(final View arg1) {
            final int groupPos = (Integer)arg1.getTag(R.id.team_singlechat_id_send);
            final int childPos = (Integer)arg1.getTag(R.id.team_singlechat_id_close);
            Log.i(TAG,"groupPos:"+groupPos+",childPos:"+childPos);
            if(childPos == -1){         //如果得到child位置的值为-1，则是操作group
                Log.i(TAG,"操作group组件");
                updateTeam(arg1);
            }else{
                Log.i(TAG,"操作child组件");     //否则，操作child
                final List<UserInfo> users = getTeamUser(groupPos);
                //判断长按的是否为自己，如果是不是自己，则弹出窗口操作，如果是自己，则查看资料
                if(DicqConstant.DEFAULTMAC.equalsIgnoreCase(users.get(childPos).getUsermac())){
                    Intent it = new Intent(TeamMainActivity.this,UserInfoActivity.class);
                    it.putExtra("isMyself", true);
                    TeamMainActivity.this.startActivity(it);
                }else{
                    builder = new AlertDialog.Builder(TeamMainActivity.this);
                    builder.setTitle("操作用户");
                    builder.setItems(new String[]{"查看资料","查看共享","移至分组","权限设置"}, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            if(which == 0){
                                Intent it = new Intent(TeamMainActivity.this,UserInfoActivity.class);
                                it.putExtra("isMyself", false);
                                it.putExtra("userinfo", users.get(childPos));
                                TeamMainActivity.this.startActivity(it);
                            }else if(which == 1){
                                Intent it1 = new Intent(TeamMainActivity.this,FileShareActivity.class);
                                it1.putExtra("userinfo",users.get(childPos));
                                TeamMainActivity.this.startActivity(it1);
                            }else if(which == 2){
                                updateChild(groupPos,childPos);
                            }else if(which == 3){
                                updateUserPrivilege(groupPos,childPos);
                            }
                        }
                    }).show();
                }

            }
        }

第二种方式、是能ContextMenu。

这种方式是通过把ExpandableListContextMenuInfo的Type来判断是Group或Child，然后创建不同的菜单

代码如下：

1. @Override
2.     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
3.             ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) menuInfo;
4.             int type = ExpandableListView.getPackedPositionType(info.packedPosition); 
5.             int group = ExpandableListView.getPackedPositionGroup(info.packedPosition); 
6.             if(type == ExpandableListView.PACKED_POSITION_TYPE_CHILD && group!=0){
7.                     menu.setHeaderTitle("Sample menu");
8.                     menu.add(0, 0, 0, R.string.expandable_list_sample_action);
9.             }
10.     }