android可扩展列表视图从子onclick侦听器获取组的视图 [英] android expandable list view get view of group from child onclick listener

问题描述

我在我的应用程序中有一个可扩展的列表视图，每个组都有一个文本视图，说T具有动态值，每个组中都有一个单独的子级.我想引用已单击其子项的该组的T文本视图对象，以便我可以根据所单击的子项相应地更改T的值.

i have a expandable list view in my app, each group has a textview say T having dynamic value and each group has a single child within it. I want to refer to that T textview object of that Group whose child has been clicked on so that i can change the value of T accordingly as per the child item clicked.

在使用groupClickListener的情况下，我可以轻松获取TextView对象，但是在使用childClickListener的情况下，则无法获取...请在此处查看两者.

I can easily get the TextView Object in case of groupClickListener but iam not able to get in case of childClickListener... pls see both here.

mExpandableListView.setOnGroupClickListener(new OnGroupClickListener(){

mExpandableListView.setOnGroupClickListener(new OnGroupClickListener() {

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                int groupPosition, long id) {
            // TODO Auto-generated method stub
            TextView moreTextView = (TextView)v.findViewById(R.id.group_more);  // this works fine

            }
            return false;
        }
    });

mExpandableListView.setOnChildClickListener(new OnChildClickListener(){

mExpandableListView.setOnChildClickListener(new OnChildClickListener() {

        @Override
        public boolean onChildClick(ExpandableListView parent, View v,
                int groupPosition, int childPosition, long id) {
            // TODO Auto-generated method stub
            boolean isExpanded=false;
            if(groupStatus[groupPosition]==1)
            {
                isExpanded=true;
            }
            View v1 = parent.getExpandableListAdapter().getGroupView(groupPosition, isExpanded, v, parent);
            TextView moreTextView = (TextView)v1.findViewById(R.id.group_more);  // doesn,t work as v1 is null all the times
            return false;
        }
    });

推荐答案

// Listview on child click listener
expListView.setOnChildClickListener(new OnChildClickListener() {

    @Override
    public boolean onChildClick(ExpandableListView parent, View v,
            int groupPosition, int childPosition, long id) {
        // TODO Auto-generated method stub
        Toast.makeText(
                getApplicationContext(),
                listDataHeader.get(groupPosition)
                        + " : "
                        + listDataChild.get(
                                listDataHeader.get(groupPosition)).get(
                                childPosition), Toast.LENGTH_SHORT)
                .show();
        return false;
    }
});

我希望它对您有用.

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