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Android 在ExpandableListView中获取子组父视图

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Android 在ExpandableListView中获取子组父视图,android,expandablelistview,Android,Expandablelistview,全部 我想更改所有子组[而不是列表中单个子组]的背景 我尝试调用getParent（）方法view.getParent（），但抛出错误 这是我的代码 View parentGroup = (View)view.getParent(); parentGroup.setBackground(new ColorDrawable(Color.CYAN)); package com.icanstudioz.android.njoyful.adapters; import

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我想更改所有子组[而不是列表中单个子组]的背景

我尝试调用getParent（）方法
view.getParent（）
，但抛出错误

这是我的代码

        View parentGroup = (View)view.getParent();
        parentGroup.setBackground(new ColorDrawable(Color.CYAN));

package com.icanstudioz.android.njoyful.adapters;

import java.util.HashMap;
import java.util.List;

import com.icanstudioz.android.njoyful.R;
import com.icanstudioz.android.njoyful.utils.Commons;
import com.icanstudioz.android.pojoclasses.Categories;

import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.FrameLayout;
import android.widget.TextView;

public class ExpandableCategoriesListAdapter extends BaseExpandableListAdapter {

    private Context _context;
    private List<String> _listDataHeader; // header titles
    // child data in format of header title, child title
    private HashMap<String, List<Categories>> _listDataChild;

    public ExpandableCategoriesListAdapter(Context context,
            List<String> listDataHeader,
            HashMap<String, List<Categories>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
    }

    public int getSubCategoryId(int groupPosition, int childPosition) {

        return _listDataChild.get(_listDataHeader.get(groupPosition))
                .get(childPosition).getId();

    }

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

        ViewHolder holder;
        View view = convertView;

        if (view == null) {
            LayoutInflater inflater = (LayoutInflater) _context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            holder = new ViewHolder();

            view = inflater.inflate(R.layout.categories_list_items, null);
            View parentGroup = (View)view.getParent();
            parentGroup.setBackground(new ColorDrawable(Color.CYAN));
            Commons.applyFont(_context,
                    view.findViewById(R.id.RelativeLayout1),
                    "RobotoSlab-Light.ttf");
            // view.setBackgroundColor(color_arr[position]);
            holder.cat_name = (TextView) view.findViewById(R.id.cat_name);
            view.findViewById(R.id.cat_item_check).setVisibility(View.GONE);
            view.setTag(holder);
        } else {
            holder = (ViewHolder) view.getTag();
        }

        Categories dItem = (Categories) getChild(groupPosition, childPosition);

        holder.cat_name.setText(dItem.getCat_name());

        return view;
    }

    public class ViewHolder {
        TextView cat_name;
    }

    @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);
            convertView = infalInflater.inflate(R.layout.order_category_header,
                    null);
        }

        TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.lblListHeader);
        Commons.applyFont(_context, lblListHeader, "RobotoSlab-Bold.ttf");
        lblListHeader.setText(headerTitle);

        return convertView;
    }

    @Override
    public Object getChild(int groupPosition, int childPosititon) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .get(childPosititon);
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return this._listDataHeader.get(groupPosition);
    }

    @Override
    public int getGroupCount() {
        return this._listDataHeader.size();
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }

}
我想要这种用户界面。-->

编辑

        View parentGroup = (View)view.getParent();
        parentGroup.setBackground(new ColorDrawable(Color.CYAN));

package com.icanstudioz.android.njoyful.adapters;

import java.util.HashMap;
import java.util.List;

import com.icanstudioz.android.njoyful.R;
import com.icanstudioz.android.njoyful.utils.Commons;
import com.icanstudioz.android.pojoclasses.Categories;

import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.FrameLayout;
import android.widget.TextView;

public class ExpandableCategoriesListAdapter extends BaseExpandableListAdapter {

    private Context _context;
    private List<String> _listDataHeader; // header titles
    // child data in format of header title, child title
    private HashMap<String, List<Categories>> _listDataChild;

    public ExpandableCategoriesListAdapter(Context context,
            List<String> listDataHeader,
            HashMap<String, List<Categories>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
    }

    public int getSubCategoryId(int groupPosition, int childPosition) {

        return _listDataChild.get(_listDataHeader.get(groupPosition))
                .get(childPosition).getId();

    }

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

        ViewHolder holder;
        View view = convertView;

        if (view == null) {
            LayoutInflater inflater = (LayoutInflater) _context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            holder = new ViewHolder();

            view = inflater.inflate(R.layout.categories_list_items, null);
            View parentGroup = (View)view.getParent();
            parentGroup.setBackground(new ColorDrawable(Color.CYAN));
            Commons.applyFont(_context,
                    view.findViewById(R.id.RelativeLayout1),
                    "RobotoSlab-Light.ttf");
            // view.setBackgroundColor(color_arr[position]);
            holder.cat_name = (TextView) view.findViewById(R.id.cat_name);
            view.findViewById(R.id.cat_item_check).setVisibility(View.GONE);
            view.setTag(holder);
        } else {
            holder = (ViewHolder) view.getTag();
        }

        Categories dItem = (Categories) getChild(groupPosition, childPosition);

        holder.cat_name.setText(dItem.getCat_name());

        return view;
    }

    public class ViewHolder {
        TextView cat_name;
    }

    @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);
            convertView = infalInflater.inflate(R.layout.order_category_header,
                    null);
        }

        TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.lblListHeader);
        Commons.applyFont(_context, lblListHeader, "RobotoSlab-Bold.ttf");
        lblListHeader.setText(headerTitle);

        return convertView;
    }

    @Override
    public Object getChild(int groupPosition, int childPosititon) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .get(childPosititon);
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return this._listDataHeader.get(groupPosition);
    }

    @Override
    public int getGroupCount() {
        return this._listDataHeader.size();
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }

}
我的自定义适配器：

        View parentGroup = (View)view.getParent();
        parentGroup.setBackground(new ColorDrawable(Color.CYAN));

package com.icanstudioz.android.njoyful.adapters;

import java.util.HashMap;
import java.util.List;

import com.icanstudioz.android.njoyful.R;
import com.icanstudioz.android.njoyful.utils.Commons;
import com.icanstudioz.android.pojoclasses.Categories;

import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.FrameLayout;
import android.widget.TextView;

public class ExpandableCategoriesListAdapter extends BaseExpandableListAdapter {

    private Context _context;
    private List<String> _listDataHeader; // header titles
    // child data in format of header title, child title
    private HashMap<String, List<Categories>> _listDataChild;

    public ExpandableCategoriesListAdapter(Context context,
            List<String> listDataHeader,
            HashMap<String, List<Categories>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
    }

    public int getSubCategoryId(int groupPosition, int childPosition) {

        return _listDataChild.get(_listDataHeader.get(groupPosition))
                .get(childPosition).getId();

    }

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

        ViewHolder holder;
        View view = convertView;

        if (view == null) {
            LayoutInflater inflater = (LayoutInflater) _context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            holder = new ViewHolder();

            view = inflater.inflate(R.layout.categories_list_items, null);
            View parentGroup = (View)view.getParent();
            parentGroup.setBackground(new ColorDrawable(Color.CYAN));
            Commons.applyFont(_context,
                    view.findViewById(R.id.RelativeLayout1),
                    "RobotoSlab-Light.ttf");
            // view.setBackgroundColor(color_arr[position]);
            holder.cat_name = (TextView) view.findViewById(R.id.cat_name);
            view.findViewById(R.id.cat_item_check).setVisibility(View.GONE);
            view.setTag(holder);
        } else {
            holder = (ViewHolder) view.getTag();
        }

        Categories dItem = (Categories) getChild(groupPosition, childPosition);

        holder.cat_name.setText(dItem.getCat_name());

        return view;
    }

    public class ViewHolder {
        TextView cat_name;
    }

    @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);
            convertView = infalInflater.inflate(R.layout.order_category_header,
                    null);
        }

        TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.lblListHeader);
        Commons.applyFont(_context, lblListHeader, "RobotoSlab-Bold.ttf");
        lblListHeader.setText(headerTitle);

        return convertView;
    }

    @Override
    public Object getChild(int groupPosition, int childPosititon) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .get(childPosititon);
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return this._listDataHeader.get(groupPosition);
    }

    @Override
    public int getGroupCount() {
        return this._listDataHeader.size();
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }

}

package com.icanstudioz.android.njoyful.adapters；
导入java.util.HashMap；
导入java.util.List；
导入com.icanstudioz.android.njoyful.R；
导入com.icanstudioz.android.njoyful.utils.Commons；
导入com.icanstudioz.android.pojoclasses.Categories；
导入android.content.Context；
导入android.graphics.Color；
导入android.graphics.Typeface；
导入android.graphics.drawable.ColorDrawable；
导入android.view.LayoutInflater；
导入android.view.view；
导入android.view.ViewGroup；
导入android.widget.BaseExpandableListAdapter；
导入android.widget.FrameLayout；
导入android.widget.TextView；
公共类ExpandableCategoriesListAdapter扩展了BaseExpandableListAdapter{
私人语境(private Context)(私人语境);；
私有列表_listDataHeader；//头标题
//标题标题、子标题格式的子数据
私有HashMap_listDataChild；
公共ExpandableCategoriesListAdapter（上下文，
列表listDataHeader，
HashMap listChildData）{
这._context=context；
这。_listDataHeader=listDataHeader；
这。_listDataChild=listChildData；
}
public int getSubcategorid（int groupPosition，int childPosition）{
返回_listDataChild.get（_listDataHeader.get（groupPosition））
.get（childPosition.getId（）；
}
@凌驾
公共视图getChildView（int groupPosition，final int childPosition，
布尔值isLastChild、视图转换视图、视图组父级）{
视窗座；
视图=转换视图；
如果（视图==null）{
LayoutInflater充气器=（LayoutInflater）\u上下文
.getSystemService（上下文布局\充气机\服务）；
holder=新的ViewHolder（）；
视图=充气机。充气（R.layout.categories\u list\u items，空）；
View parentGroup=（View）View.getParent（）；
父组。挫折背景（新的可着色（颜色。青色））；
Commons.applyFont（_上下文，
view.findViewById（R.id.RelativeLayout1），
“RobotoSlab Light.ttf”）；
//视图.设置背景颜色（颜色[位置]）；
holder.cat_name=（TextView）view.findViewById（R.id.cat_name）；
view.findViewById（R.id.cat\u item\u check）.setVisibility（view.GONE）；
视图.设置标签（支架）；
}否则{
holder=（ViewHolder）view.getTag（）；
}
Categories-dItem=（Categories）getChild（groupPosition，childPosition）；
holder.cat_name.setText（dItem.getCat_name（））；
返回视图；
}
公共类视图持有者{
文本视图类别名称；
}
@凌驾
公共视图getGroupView（int-groupPosition，布尔值isExpanded，
视图（视图、视图组父级）{
字符串头文件=（字符串）getGroup（groupPosition）；
if（convertView==null）{
LayoutInflater infalInflater=（LayoutInflater）this.\u上下文
.getSystemService（上下文布局\充气机\服务）；
convertView=充气机充气（右布局、订单、类别、标题、，
无效）；
}
TextView lblistheader=（TextView）convertView
.findviewbyd（R.id.lblistheader）；
applyFont（_context，lblistheader，“robotosab Bold.ttf”）；
lblListHeader.setText（标题）；
返回视图；
}
@凌驾
公共对象getChild（int-groupPosition、int-ChildPosition）{
返回此。_listDataChild.get（此。_listDataHeader.get（groupPosition））
.get（childpositionon）；
}
@凌驾
公共长getChildId（int-groupPosition，int-childPosition）{
返回子位置；
}
@凌驾
公共整数getChildrenCount（整数组位置）{
返回此。_listDataChild.get（此。_listDataHeader.get（groupPosition））
.size（）；
}
@凌驾
公共对象getGroup（int-groupPosition）{
返回此。\u listDataHeader.get（groupPosition）；
}
@凌驾
public int getGroupCount（）{
返回此值。_listDataHeader.size（）；
}
@凌驾
公共长getGroupId（int-groupPosition）{
返回组位置；
}
@凌驾
公共布尔表ID（）{
返回false；
}
@凌驾
公共布尔值isChildSelectable（int-groupPosition，int-childPosition）{
返回true；
}
}
希望这有帮助

请指导我如何执行此操作或任何其他解决方案？

我认为您需要发布更多有关您正在使用的ExpandableListAdapter类型的代码。适配器中有一些方法，您可以在其中为每个父行生成视图，为每个子行生成视图，并将它们绑定到数据。。。您正在使用适配器，是吗？是的，我为此使用了自定义适配器！让我发布我的其他代码。只需在适配器的getGroupView（）中设置背景色！它只改变标题的背景。就我而言，这已经是绿色的了。我只需要设置childgroup的背景。如所附屏幕[灰色]所示。不清楚您的意思-您是指子视图？您是否尝试过在getChildView（）中设置背景？