Java 如何在ExpandableListView的组中设置文本文本视图

我想做的是，当我在ExpandableListView中单击子级时，它将根据所选子级更改父级（groupView）。简而言之，这就像HTML中的

这是儿童视图

public View getChildView(int groupPosition, final int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {


    final String childText = (String) getChild(groupPosition, childPosition);

    if (convertView == null) {
        LayoutInflater inflater= (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.list_item, null);
    }

    convertView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.i("Onclick CHild: ", childText);

            //This is where I want to setText the View of its groupView
        }
    });

    TextView txtListChild = (TextView) convertView
            .findViewById(R.id.listItem);

    txtListChild.setText(childText);
    return convertView;
}

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
                         View convertView, ViewGroup parent) {
    String headerTitle = (String) getGroup(groupPosition);

    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        switch(groupPosition){
            case 0:{
                convertView = infalInflater.inflate(R.layout.type_header, null);
                break;
            }
            case 1:{
                convertView = infalInflater.inflate(R.layout.make_header, null);
                break;
            }
            case 2:{
                convertView = infalInflater.inflate(R.layout.model_header, null);
                break;
            }
            case 3:{
                convertView = infalInflater.inflate(R.layout.engine_header, null);
                break;
            }
            case 4:{
                convertView = infalInflater.inflate(R.layout.weight_header, null);
                break;
            }
        }
    }


    Holder holder = new Holder(this._context);
    holder.title = (TextView) convertView.findViewById(R.id.headerTitle);
    holder.title.setText(headerTitle);

    return convertView;
}

这是组视图

public View getChildView(int groupPosition, final int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {


    final String childText = (String) getChild(groupPosition, childPosition);

    if (convertView == null) {
        LayoutInflater inflater= (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.list_item, null);
    }

    convertView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.i("Onclick CHild: ", childText);

            //This is where I want to setText the View of its groupView
        }
    });

    TextView txtListChild = (TextView) convertView
            .findViewById(R.id.listItem);

    txtListChild.setText(childText);
    return convertView;
}

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
                         View convertView, ViewGroup parent) {
    String headerTitle = (String) getGroup(groupPosition);

    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) this._context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        switch(groupPosition){
            case 0:{
                convertView = infalInflater.inflate(R.layout.type_header, null);
                break;
            }
            case 1:{
                convertView = infalInflater.inflate(R.layout.make_header, null);
                break;
            }
            case 2:{
                convertView = infalInflater.inflate(R.layout.model_header, null);
                break;
            }
            case 3:{
                convertView = infalInflater.inflate(R.layout.engine_header, null);
                break;
            }
            case 4:{
                convertView = infalInflater.inflate(R.layout.weight_header, null);
                break;
            }
        }
    }


    Holder holder = new Holder(this._context);
    holder.title = (TextView) convertView.findViewById(R.id.headerTitle);
    holder.title.setText(headerTitle);

    return convertView;
}

公共视图getGroupView（int groupPosition、布尔isExpanded、视图convertView、视图组父级）{ 字符串头文件=（字符串）getGroup（groupPosition）

请使用此代码