这里需要将ExpandableListView的groupIndicator属性设置为@null，不使用其自带的展开图标；
GroupListFragment.java 加载列表的页面
package com.eric.grouplistdemo;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.R.integer;
import android.app.Fragment;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ExpandableListView;
import android.widget.ImageView;
import android.widget.Toast;
public class GroupListFragment extends Fragment{
private View view;
private ExpandableListView expandableListView;
public static MyAdapter adapter;
public static List<String> parentList;
public static Map<String,List<String>> map;
private ModifyDialog dialog;
private EditText edit_modify;
private ImageView image_add;
private int currentGroup,currentChild;
public static SharedPreferences sp;
public static Editor editor;
public static String dataMap,dataParentList;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_group_list, container, false);
expandableListView = (ExpandableListView) view.findViewById(R.id.expandablelistview);
image_add = (ImageView) view.findViewById(R.id.image_add);
image_add.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
alertAddDialog(getActivity(), "新增组");
}
});
initData();
adapter = new MyAdapter(getActivity().getApplicationContext(), parentList, map);
expandableListView.setAdapter(adapter);
//设置子项点击事件
MyOnClickListener myListener = new MyOnClickListener();
expandableListView.setOnChildClickListener(myListener);
//设置长按点击事件
MyOnLongClickListener myLongListener = new MyOnLongClickListener();
expandableListView.setOnItemLongClickListener(myLongListener);
return view;
}
public void initData(){
map = new HashMap<String, List<String>>();
parentList = new ArrayList<String>();
sp = getActivity().getApplicationContext().getSharedPreferences("spfile", getActivity().MODE_PRIVATE);
dataMap = sp.getString("dataMap", null);
dataParentList = sp.getString("dataParentList", null);
if(dataMap == null || dataParentList == null){
parentList = new ArrayList<String>();
parentList.add("客厅");
parentList.add("厨房");
parentList.add("卧室");
List<String> list1 = new ArrayList<String>();
list1.add("客厅空调");
list1.add("客厅电视");
list1.add("客厅电灯");
map.put("客厅", list1);
List<String> list2 = new ArrayList<String>();
list2.add("厨房油烟机");
list2.add("厨房电灯");
list2.add("厨房电器");
map.put("厨房", list2);
List<String> list3 = new ArrayList<String>();
list3.add("卧室空调");
list3.add("卧室灯光");
list3.add("卧室电视");
map.put("卧室", list3);
}else{
try {
//初始化parentList
JSONArray jsonArray = new JSONArray(dataParentList);
for (int i = 0; i < jsonArray.length(); i++) {
parentList.add(jsonArray.get(i).toString());
}
//初始化map
JSONObject jsonObject = new JSONObject(dataMap);
for (int i = 0; i < jsonObject.length(); i++) {
String key = jsonObject.getString(parentList.get(i));
JSONArray array = new JSONArray(key);
List<String> list = new ArrayList<String>();
for (int j = 0; j < array.length(); j++) {
list.add(array.get(j).toString());
}
map.put(parentList.get(i), list);
}
Log.d("eric", "①："+map+"②："+parentList);
} catch (JSONException e) {
e.printStackTrace();
Log.e("eric","String转Map或List出错"+e);
}
}
Log.e("eric", dataMap+"!&&!"+dataParentList);
saveData();
}
//自定义点击监听事件
public class MyOnClickListener implements ExpandableListView.OnChildClickListener{
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
String str = "choose"+groupPosition+"-"+childPosition;
Toast.makeText(getActivity(), str, Toast.LENGTH_SHORT).show();
return false;
}
}
//自定义长按监听事件
public class MyOnLongClickListener implements AdapterView.OnItemLongClickListener{
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id) {
//长按子项
if (ExpandableListView.getPackedPositionType(id) == ExpandableListView.PACKED_POSITION_TYPE_CHILD){
long packedPos = ((ExpandableListView) parent).getExpandableListPosition(position);
int groupPosition = ExpandableListView.getPackedPositionGroup(packedPos);
int childPosition = ExpandableListView.getPackedPositionChild(packedPos);
currentGroup = groupPosition;
currentChild = childPosition;
String str = (String)adapter.getChild(groupPosition, childPosition);
alertModifyDialog("修改此项名称",str);
Toast.makeText(getActivity(),str,Toast.LENGTH_SHORT).show();
return true;
//长按组
}else if(ExpandableListView.getPackedPositionType(id) == ExpandableListView.PACKED_POSITION_TYPE_GROUP){
long packedPos = ((ExpandableListView) parent).getExpandableListPosition(position);
int groupPosition = ExpandableListView.getPackedPositionGroup(packedPos);
int childPosition = ExpandableListView.getPackedPositionChild(packedPos);
currentGroup = groupPosition;
currentChild = childPosition;
String group = parentList.get(groupPosition);
alertModifyDialog("修改组名称", group);
String str = (String)adapter.getGroup(groupPosition);
Toast.makeText(getActivity(),str,Toast.LENGTH_SHORT).show();
}
return false;
}
}
//新增组
public static void addGroup(String newGroupName){
parentList.add(newGroupName);
List<String> list = new ArrayList<String>();
map.put(newGroupName, list);
adapter.notifyDataSetChanged();
saveData();
}
//新增子项到指定组
public static void addChild(int groupPosition, String newChildName){
String groupName = parentList.get(groupPosition);
List<String> list = map.get(groupName);
list.add(newChildName);
adapter.notifyDataSetChanged();
saveData();
}
//删除指定组
public static void deleteGroup(int groupPos){
String groupName = parentList.get(groupPos);
map.remove(groupName);
parentList.remove(groupPos);
adapter.notifyDataSetChanged();
saveData();
}
//删除指定子项
public static void deleteChild(int groupPos, int childPos){
String groupName = parentList.get(groupPos);
List<String> list = map.get(groupName);
list.remove(childPos);
adapter.notifyDataSetChanged();
saveData();
}
//修改该项名称
public void modifyName(int groupPosition, int childPosition, String modifyName){
Toast.makeText(getActivity(), String.valueOf(groupPosition)+'-'+String.valueOf(childPosition), Toast.LENGTH_SHORT).show();
if(childPosition<0){
//修改组名称
String groupName = parentList.get(groupPosition);
if(!groupName.equals(modifyName)){
map.put(modifyName, map.get(groupName));
map.remove(groupName);
parentList.set(groupPosition, modifyName);
}
}else{
//修改子项名称
String group = parentList.get(groupPosition);
List<String> list =map.get(group);
list.set(childPosition, modifyName);
map.put(group, list);
}
adapter.notifyDataSetChanged();
saveData();
}
//弹修改对话框
public void alertModifyDialog(String title, String name){
dialog = new ModifyDialog(getActivity(), title, name);
edit_modify = dialog.getEditText();
dialog.setOnClickCommitListener(new OnClickListener() {
@Override
public void onClick(View v) {
modifyName(currentGroup, currentChild, edit_modify.getText().toString());
dialog.dismiss();
}
});
dialog.show();
}
//弹新增组对话框
public void alertAddDialog(Context context, String title){
dialog = new ModifyDialog(context, title, null);
edit_modify = dialog.getEditText();
dialog.setOnClickCommitListener(new OnClickListener() {
@Override
public void onClick(View v) {
addGroup(edit_modify.getText().toString());
dialog.dismiss();
}
});
dialog.show();
}
//保存数据
public static void saveData(){
JSONObject jsonObject = new JSONObject(map);
dataMap = jsonObject.toString();
dataParentList = parentList.toString();
editor = sp.edit();
editor.putString("dataMap", dataMap);
editor.putString("dataParentList", dataParentList);
editor.commit();
}
}
