【发布时间】：2016-10-02 09:47:42
【问题描述】：
我正在 android studio 中开发，我正在尝试使用可扩展列表视图。
我想在每个部分的标题中添加另一个 textView 意味着： 我将在每个可消耗视图的标题上放置两个 textView。 it should look like this我该怎么做？
我已经做了可扩展的列表视图，但我唯一剩下的就是在标题中添加另一个文本视图。
主类extendsActivity是这样的：
package com.example.yuliaaa.myapplication;
import android.app.Activity;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.ExpandableListView;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class reasults extends Activity {
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.reasults_layout);
// get the listview
expListView = (ExpandableListView) findViewById(R.id.expandable_supers);
// preparing list data
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
}
/*
* Preparing the list data
*/
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("סופר X");
listDataHeader.add("סופר Y");
listDataHeader.add("סופר Z");
List<String> productsX = new ArrayList<String>();
productsX.add("במבה");
productsX.add("ביסלי");
List<String> productsY = new ArrayList<String>();
productsY.add("מים");
productsY.add("עגבניות");
productsY.add("קורנפלקס");
List<String> productsZ = new ArrayList<String>();
productsZ.add("קוקה קולה");
listDataChild.put(listDataHeader.get(0), productsX); // Header, Child data
listDataChild.put(listDataHeader.get(1), productsY);
listDataChild.put(listDataHeader.get(2), productsZ);
}
}我有： 1) 名为 content_resault.xml 的 XML 具有 ExpandableListView 标记，ID 为：expandable_supers
2) 名为 list_group_super.xml 的 XML 具有带有 id 的 TextView 标记：lblListHeader
3) 名为 list_items_products.xml 的 XML 具有一个 TextView 标记，其 id 为：lblListItem
还有一个名为：ExpandableListAdapter 的 java 类，它扩展了 BaseExpandableListAdapter，如下所示：
package com.example.yuliaaa.myapplication;
import android.content.Context;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
import java.util.HashMap;
import java.util.List;
/**
* Created by Tzlil on 01/06/2016.
*/
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@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 View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_items_products, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
@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 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.list_group_super, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}【问题讨论】：
标签： android xml listview android-studio expandablelistview