ExpandableListView中子选项checkBox被选中的操作
一些记录，或许以后能用。
上图
列表效果
选择之后的效果
上代码了。
布局文件activity_expandable_list_view.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_margin="5dip"
android:text="菜单"
android:textColor="#808080"
android:textSize="28.0dip" />
<Button
android:id="@+id/shopMsubmit"
android:layout_width="60dip"
android:layout_height="30dip"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dip"
android:background="@drawable/order_submit"
android:text="提交菜单"
android:textColor="@android:color/white"
android:textSize="12.0dip" />
</RelativeLayout>
<ExpandableListView
android:id="@+id/expandableListView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:clickable="false"
android:divider="@android:color/white"
android:focusable="false"
android:focusableInTouchMode="false"
android:groupIndicator="@drawable/expandable_icon" >
</ExpandableListView>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@android:color/white"
android:orientation="horizontal" >
<TextView
android:id="@+id/groupName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="30dip"
android:gravity="center_vertical"
android:text="菜名"
android:textColor="#008000"
android:textSize="22.0dip" />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="25dip"
android:orientation="horizontal"
android:background="@android:color/white" >
<CheckBox
android:id="@+id/childCheckBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:button="@drawable/checkbox_icon"
android:layout_gravity="center_vertical"
android:layout_marginLeft="40dip"
/>
<TextView
android:id="@+id/childName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:text="菜名"
android:textColor="@android:color/black"
android:textSize="14.0dip" />
</LinearLayout>
ExpandableListViewDemo.java
package com.example.expandablelistview;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ExpandableListView;
import android.widget.Toast;
/**
* 界面
* @author Sanpark
* @since 2013-11-23
*
*/
public class ExpandableListViewDemo extends Activity {
private List<String> groupDatas;// 父列表数据
private List<List<HashMap<String, String>>> childDatas;// 子列表数据
private ExpandableListView expandableListView;
private MyExpandableListViewAdapter ex_adapter;
private Button order_submit;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_expandable_list_view);
InitDatas();
InitView();
}
private void InitView() {
order_submit = (Button) findViewById(R.id.shopMsubmit);
expandableListView = (ExpandableListView) findViewById(R.id.expandableListView);
ex_adapter = new MyExpandableListViewAdapter(this, groupDatas,
childDatas);
expandableListView.setAdapter(ex_adapter);
// 提交操作
order_submit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
List<List<HashMap<Integer, Boolean>>> childCheckBoxState = ex_adapter.childCheckBoxState;
String options = "选择的项是:";
List<HashMap<String, Object>> list = new ArrayList<HashMap<String, Object>>();
//循环childCheckBoxState状态，匹配childDatas的值
for (int j = 0; j < ex_adapter.getGroupCount(); j++) {
for (int i = 0; i < ex_adapter.getChildrenCount(j); i++) {
if (childCheckBoxState.get(j).get(i).get(i) == true) {
@SuppressWarnings("unchecked")
HashMap<String, Object> map = (HashMap<String, Object>) ex_adapter
.getChild(j, i);
String name = map.get("name").toString();
String price = (String) map.get("price");
options += "\n" + name + "." + price;
list.add(map);
}
}
}
Toast.makeText(getApplicationContext(), options,
Toast.LENGTH_SHORT).show();
}
});
}
// 初始化数据
private void InitDatas() {
groupDatas = new ArrayList<String>();
childDatas = new ArrayList<List<HashMap<String, String>>>();
addInfo("炒菜类", new String[] { "番茄鸡蛋", "茄子豆角", "清炒苦瓜" }, new String[] {
"9.00", "10.00", "8.00" });
addInfo("汤类", new String[] { "番茄蛋汤", "紫菜蛋汤" }, new String[] { "9.00",
"10.00" });
addInfo("盖饭类", new String[] { "土豆牛肉盖饭", "红烧茄子盖饭", "青椒肉丝盖饭" },
new String[] { "15.00", "12.00", "14.00" });
}
// 添加数据方法
private void addInfo(String group, String[] childs, String[] price) {
groupDatas.add(group);
List<HashMap<String, String>> childItem = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < childs.length; i++) {
HashMap<String, String> map = new HashMap<String, String>();
map.put("name", childs[i]);
map.put("price", price[i]);
childItem.add(map);
}
childDatas.add(childItem);
}
}
package com.example.expandablelistview;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.TextView;
/**
* ExpandableListView适配器
*
* @author Sanpark
* @since 2013-11-23
*/
public class MyExpandableListViewAdapter extends BaseExpandableListAdapter {
private Context context;
private List<String> groupDatas;
private List<List<HashMap<String, String>>> childDatas;
// 子列表checkBox的状态记录，数据结构与子列表数据一样
public List<List<HashMap<Integer, Boolean>>> childCheckBoxState = new ArrayList<List<HashMap<Integer,Boolean>>>();
public MyExpandableListViewAdapter(Context context,
List<String> groupDatas,
List<List<HashMap<String, String>>> childDatas) {
super();
this.context = context;
this.groupDatas = groupDatas;
this.childDatas = childDatas;
InitCheckBoxState();
}
// 初始化checkBox状态,默认所有checkBox未选中
public void InitCheckBoxState() {
for (int i = 0; i < groupDatas.size(); i++) {
List<HashMap<Integer, Boolean>> item = new ArrayList<HashMap<Integer, Boolean>>();
for (int j = 0; j < childDatas.get(i).size(); j++) {
HashMap<Integer, Boolean> map = new HashMap<Integer, Boolean>();
map.put(j, false);
item.add(map);
}
childCheckBoxState.add(item);
}
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return childDatas.get(groupPosition).get(childPosition);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(final int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(
R.layout.foodchild_item, null);
holder = new ViewHolder();
holder.name = (TextView) convertView.findViewById(R.id.childName);
holder.box = (CheckBox) convertView
.findViewById(R.id.childCheckBox);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.name.setText(childDatas.get(groupPosition).get(childPosition)
.get("name").toString());
holder.box.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton arg0, boolean isChecked) {
if (isChecked) {
childCheckBoxState.get(groupPosition).get(childPosition)
.put(childPosition, true);
} else {
childCheckBoxState.get(groupPosition).get(childPosition)
.put(childPosition, false);
}
}
});
// 按状态初始化checkBox，避免父列表收缩打开checkBox混乱
holder.box.setChecked(childCheckBoxState.get(groupPosition)
.get(childPosition).get(childPosition) == false ? false : true);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return childDatas.get(groupPosition).size();
}
@Override
public Object getGroup(int groupPosition) {
return groupDatas.get(groupPosition);
}
@Override
public int getGroupCount() {
return groupDatas.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(
R.layout.foodgroup_item, null);
holder = new ViewHolder();
holder.name = (TextView) convertView.findViewById(R.id.groupName);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.name.setText(groupDatas.get(groupPosition).toString());
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
static class ViewHolder {
TextView name;
CheckBox box;
}
}
转载请注明出处：http://my.oschina.net/u/726360/admin/edit-blog?blog=178352
源码已上传CSDN：http://download.csdn.net/detail/just_sanpark/6598061