最近在公司做项目，有一个小模块，需要用到ExpandableListView这个控件，所以在工作中边学习边工作。根据需求，在进入ExpandableLisView的时候默认展开第一组，需要用到这个属性，expandableListView.expandGroup(0);
在ExpandableListView中，当点击一个组展开时，其他展开的组是不自动关上的，这需要在监听事件中处理一下：
@Override
public void onGroupExpand(int groupPosition) {
// TODO Auto-generated method stub
for (int i = 0, count = expandableListView.getExpandableListAdapter()
.getGroupCount(); i < count; i++) {
if (groupPosition != i) {// 关闭其他分组
expandableListView.collapseGroup(i);
}
}
}
还有一个地方需要注意的就是在Adapter的getChildrenCount(int groupPosition)方法，要return child.get(groupPosition).size()，否则会在点击组得时候，报数组越界的问题。
下边是部分代码：
MainActivity.java
1 package com.example.expandablelistviewdemo;
2
3 import java.util.ArrayList;
4 import java.util.List;
5 import android.app.Activity;
6 import android.os.Bundle;
7 import android.widget.ExpandableListView;
8 import android.widget.ExpandableListView.OnGroupExpandListener;
9
10 public class MainActivity extends Activity implements OnGroupExpandListener {
11 private ExpandableListView expandableListView;
12 private ServiceStationAdapter adapter;
13 private ArrayList<String> groupList = new ArrayList<String>();
14 private ArrayList<List<ServerStation>> childList = new ArrayList<List<ServerStation>>();
15
16 @Override
17 protected void onCreate(Bundle savedInstanceState) {
18 // TODO Auto-generated method stub
19 super.onCreate(savedInstanceState);
20 setContentView(R.layout.activity_main);
21 expandableListView = (ExpandableListView) findViewById(R.id.expandableListView1);
22
23 setDate();
24 }
25
26 /**
27 * 填充数据
28 *
29 */
30 private void setDate() {
31 List<ServerStation> list1 = new ArrayList<ServerStation>();
32 for (int i = 0; i < 5; i++) {
33 ServerStation serverStation = new ServerStation();
34 serverStation.setAddressDiscri("北京丰台区甲23号" + "," + i);
35 serverStation.setFaxs("010-1234556" + "," + i);
36 serverStation.setPhones("010-74123412" + "," + i);
37 list1.add(serverStation);
38 }
39
40 addDate("北京", list1);
41 List<ServerStation> list2 = new ArrayList<ServerStation>();
42 for (int i = 0; i < 3; i++) {
43 ServerStation serverStation = new ServerStation();
44 serverStation.setAddressDiscri("河北省衡水市大风路23号5栋3门302室" + "," + i);
45 serverStation.setFaxs("0313-1234556" + "," + i);
46 serverStation.setPhones("0313-74123412" + "," + i);
47 list2.add(serverStation);
48 }
49 addDate("河北", list2);
50 expandableListView.setGroupIndicator(null);
51 adapter = new ServiceStationAdapter(MainActivity.this, groupList,
52 childList);
53 expandableListView.setAdapter(adapter);
54 // 展开一组，关闭其他组
55 expandableListView.setOnGroupExpandListener(MainActivity.this);
56 // 默认展开第一项
57 expandableListView.expandGroup(0);
58
59 }
60
61 @Override
62 public void onGroupExpand(int groupPosition) {
63 // TODO Auto-generated method stub
64 for (int i = 0, count = expandableListView.getExpandableListAdapter()
65 .getGroupCount(); i < count; i++) {
66 if (groupPosition != i) {// 关闭其他分组
67 expandableListView.collapseGroup(i);
68 }
69 }
70 }
71
72 /**
73 * 添加数据信息
74 *
75 * @param g
76 * @param c
77 */
78 private void addDate(String g, List<ServerStation> c) {
79 groupList.add(g);
80 List<ServerStation> list = new ArrayList<ServerStation>();
81 for (int i = 0; i < c.size(); i++) {
82 list.add(c.get(i));
83 }
84 childList.add(list);
85 }
86
87 }
ServiceStationAdapter.java
1 package com.example.expandablelistviewdemo;
2
3 import java.util.List;
4
5
6 import android.app.AlertDialog;
7 import android.content.Context;
8 import android.content.DialogInterface;
9 import android.content.Intent;
10 import android.net.Uri;
11 import android.view.LayoutInflater;
12 import android.view.View;
13 import android.view.View.OnClickListener;
14 import android.view.ViewGroup;
15 import android.widget.BaseExpandableListAdapter;
16 import android.widget.ImageView;
17 import android.widget.LinearLayout;
18 import android.widget.TextView;
19
20 /**
21 * expandableListView
22 *
23 */
24 public class ServiceStationAdapter extends BaseExpandableListAdapter {
25 private Context context;
26 private List<String> group;
27 private List<List<ServerStation>> child;
28
29 public ServiceStationAdapter(Context context, List<String> group,
30 List<List<ServerStation>> child) {
31 this.context = context;
32 this.group = group;
33 this.child = child;
34 }
35
36 @Override
37 public int getGroupCount() {
38 return group.size();
39 }
40
41 @Override
42 public int getChildrenCount(int groupPosition) {
43 // return child.size();
44 return child.get(groupPosition).size();
45 }
46
47 @Override
48 public Object getGroup(int groupPosition) {
49 return group.get(groupPosition);
50 }
51
52 @Override
53 public Object getChild(int groupPosition, int childPosition) {
54 return child.get(childPosition).get(childPosition);
55 }
56
57 @Override
58 public long getGroupId(int groupPosition) {
59 return groupPosition;
60 }
61
62 @Override
63 public long getChildId(int groupPosition, int childPosition) {
64 return childPosition;
65 }
66
67 @Override
68 public boolean hasStableIds() {
69 return false;
70 }
71
72 /**
73 * 修改listview组得样式 group
74 */
75 @Override
76 public View getGroupView(int groupPosition, boolean isExpanded,
77 View convertView, ViewGroup parent) {
78 ViewHolder holder;
79 if (convertView == null) {
80 convertView = LayoutInflater.from(context).inflate(
81 R.layout.expandlistview_group_layout, null);
82 holder = new ViewHolder();
83 holder.tvCity = (TextView) convertView.findViewById(R.id.tv_city);
84 holder.imgArrow = (ImageView) convertView
85 .findViewById(R.id.imageView);
86 convertView.setTag(holder);
87 } else {
88 holder = (ViewHolder) convertView.getTag();
89 }
90 if (isExpanded) {
91 holder.imgArrow
92 .setBackgroundResource(R.drawable.down_selected_icon);
93 } else {
94 holder.imgArrow.setBackgroundResource(R.drawable.up_selected_icon);
95 }
96 holder.tvCity.setText(group.get(groupPosition));
97 return convertView;
98
99 }
100
101 /**
102 * child
103 */
104 @Override
105 public View getChildView(int groupPosition, int childPosition,
106 boolean isLastChild, View convertView, ViewGroup parent) {
107 ViewHolder holder;
108 if (convertView == null) {
109 convertView = LayoutInflater.from(context).inflate(
110 R.layout.expandlistview_child_layout, null);
111 holder = new ViewHolder();
112 holder.tvAddress = (TextView) convertView
113 .findViewById(R.id.tv_address);
114 holder.tvFax = (TextView) convertView.findViewById(R.id.tv_fax);
115 holder.tvTel = (TextView) convertView.findViewById(R.id.tv_tel);
116 holder.telLayout = (LinearLayout) convertView
117 .findViewById(R.id.tel_layout);
118 convertView.setTag(holder);
119 } else {
120 holder = (ViewHolder) convertView.getTag();
121 }
122 String address = child.get(groupPosition).get(childPosition)
123 .getAddressDiscri();
124 holder.tvAddress.setText(address);
125 String fax = child.get(groupPosition).get(childPosition).getFaxs();
126 if ("".equals(fax)) {
127 holder.tvFax.setText("暂无传真信息");
128 } else {
129 holder.tvFax.setText(fax);
130 }
131
132 String mobile = child.get(groupPosition).get(childPosition).getPhones();
133 if ("".equals(mobile)) {
134 holder.tvTel.setText("暂无电话信息");
135 } else {
136 holder.tvTel.setText(mobile);
137 }
138
139 holder.telLayout.setOnClickListener(new MyclickListener(groupPosition,
140 childPosition));
141 return convertView;
142 }
143
144 class ViewHolder {
145 TextView tvCity, tvAddress, tvFax, tvTel;
146 ImageView imgArrow;
147 LinearLayout telLayout;
148
149 }
150
151 @Override
152 public boolean isChildSelectable(int groupPosition, int childPosition) {
153 return false;
154 }
155
156 class MyclickListener implements OnClickListener {
157 int groupPosition, childPosition;
158
159 public MyclickListener(int groupIndex, int childIndex) {
160 // TODO Auto-generated constructor stub
161
162 this.groupPosition = groupIndex;
163 this.childPosition = childIndex;
164 }
165
166 @Override
167 public void onClick(View v) {
168
169 // showCustomerService(child.get(groupPosition).get(childPosition)
170 // .getTel());
171 showDialog(child.get(groupPosition).get(childPosition).getPhones(),
172 "拨打电话");
173 }
174 }
175
176 /**
177 *
178 * @Title: showDialog
179 * @Description: TODO(这里用一句话描述这个方法的作用)
180 * @param: @param visible 控件的显隐
181 * @param: @param message dialog内容显示
182 * @param: @param titleStr dialog的标题
183 * @param: @param id 根据id不同设置dialog确定按钮显示
184 * @return: void 返回类型
185 * @date: 2014-9-17 下午4:40:10
186 */
187 public void showDialog(final String message, final String titleStr) {
188 AlertDialog.Builder builder = new AlertDialog.Builder(context);
189 builder.setTitle(titleStr);
190 builder.setMessage(message);
191 builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
192
193 @Override
194 public void onClick(DialogInterface dialog, int which) {
195 // TODO Auto-generated method stub
196 Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:"
197 + message));
198 context.startActivity(intent);
199 dialog.dismiss();
200 }
201
202 });
203
204 builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
205
206 @Override
207 public void onClick(DialogInterface dialog, int which) {
208 // TODO Auto-generated method stub
209 dialog.dismiss();
210 }
211 });
212
213 builder.create().show();
214 }
215
216 }
ServiceStation.java
1 package com.example.expandablelistviewdemo;
2
3 import java.io.Serializable;
4
5
6 public class ServerStation implements Serializable {
7 /**
8 */
9 private static final long serialVersionUID = 7492110209741256694L;
10 private String addressDiscri = "";// 详细地址
11 private String phones = "";// 电话
12 private String faxs = "";// 传真
13 public String getAddressDiscri() {
14 return addressDiscri;
15 }
16
17 public void setAddressDiscri(String addressDiscri) {
18 this.addressDiscri = addressDiscri;
19 }
20
21 public String getPhones() {
22 return phones;
23 }
24
25 public void setPhones(String phones) {
26 this.phones = phones;
27 }
28
29 public String getFaxs() {
30 return faxs;
31 }
32
33 public void setFaxs(String faxs) {
34 this.faxs = faxs;
35 }
36 }
布局文件
activity_main.xml
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:background="#f9f9f9" 6 android:orientation="vertical" > 7 8 <ExpandableListView 9 android:id="@+id/expandableListView1" 10 android:layout_width="match_parent" 11 android:layout_height="wrap_content" > 12 </ExpandableListView> 13 14 </LinearLayout>
expandlistview_group_layout.xml
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:orientation="vertical" > 6 7 <RelativeLayout 8 android:padding="10dp" 9 android:gravity="center_vertical" 10 android:layout_width="match_parent" 11 android:layout_height="40dp" > 12 13 <TextView 14 android:textColor="@android:color/black" 15 android:textSize="10sp" 16 android:id="@+id/tv_city" 17 android:layout_width="wrap_content" 18 android:layout_height="wrap_content" 19 android:layout_alignParentLeft="true" 20 android:text="北京" /> 21 22 <ImageView 23 android:id="@+id/imageView" 24 android:layout_width="wrap_content" 25 android:layout_height="wrap_content" 26 android:layout_alignParentRight="true" 27 android:layout_centerVertical="true" /> 28 29 </RelativeLayout> 30 31 </LinearLayout>
expandlistview_child_layout.xml
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:background="#6f737d" 6 android:orientation="vertical" > 7 8 <TextView 9 android:id="@+id/tv_address" 10 android:layout_width="match_parent" 11 android:layout_height="50dp" 12 android:layout_marginLeft="10dp" 13 android:gravity="center_vertical" 14 android:textColor="@android:color/white" /> 15 16 <LinearLayout 17 android:layout_width="match_parent" 18 android:layout_height="wrap_content" 19 android:gravity="center_vertical" 20 21 android:orientation="horizontal" > 22 23 <LinearLayout 24 android:layout_width="fill_parent" 25 android:layout_height="match_parent" 26 android:layout_weight="1" 27 android:gravity="center_vertical" 28 android:orientation="horizontal" 29 android:padding="10dp" > 30 31 <ImageView 32 android:layout_width="wrap_content" 33 android:layout_height="wrap_content" 34 android:src="@drawable/fax_icon" /> 35 36 <TextView 37 android:id="@+id/tv_fax" 38 android:layout_width="100dp" 39 android:layout_height="wrap_content" 40 android:layout_marginLeft="10dp" 41 android:textColor="@android:color/white" /> 42 </LinearLayout> 43 44 <LinearLayout 45 android:id="@+id/tel_layout" 46 android:layout_width="fill_parent" 47 android:layout_height="match_parent" 48 android:layout_weight="1" 49 android:background="@drawable/station_tel_selected" 50 android:gravity="center_vertical" 51 android:orientation="horizontal" 52 android:padding="10dp" > 53 54 <ImageView 55 android:layout_width="wrap_content" 56 android:layout_height="wrap_content" 57 android:src=<?xml version="1.0" encoding="utf-8"?> 58 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 59 android:layout_width="match_parent" 60 android:layout_height="match_parent" 61 android:background="#6f737d" 62 android:orientation="vertical" > 63 64 <TextView 65 android:id="@+id/tv_address" 66 android:layout_width="match_parent" 67 android:layout_height="50dp" 68 android:layout_marginLeft="10dp" 69 android:gravity="center_vertical" 70 android:textColor="@android:color/white" /> 71 72 <LinearLayout 73 android:layout_width="match_parent" 74 android:layout_height="wrap_content" 75 android:gravity="center_vertical" 76 77 android:orientation="horizontal" > 78 79 <LinearLayout 80 android:layout_width="fill_parent" 81 android:layout_height="match_parent" 82 android:layout_weight="1" 83 android:gravity="center_vertical" 84 android:orientation="horizontal" 85 android:padding="10dp" > 86 87 <ImageView 88 android:layout_width="wrap_content" 89 android:layout_height="wrap_content" 90 android:src="@drawable/fax_icon" /> 91 92 <TextView 93 android:id="@+id/tv_fax" 94 android:layout_width="100dp" 95 android:layout_height="wrap_content" 96 android:layout_marginLeft="10dp" 97 android:textColor="@android:color/white" /> 98 </LinearLayout> 99 100 <LinearLayout 101 android:id="@+id/tel_layout" 102 android:layout_width="fill_parent" 103 android:layout_height="match_parent" 104 android:layout_weight="1" 105 android:background="@drawable/station_tel_selected" 106 android:gravity="center_vertical" 107 android:orientation="horizontal" 108 android:padding="10dp" > 109 110 <ImageView 111 android:layout_width="wrap_content" 112 android:layout_height="wrap_content" 113 android:src="@drawable/tel_icon" /> 114 115 <TextView 116 android:id="@+id/tv_tel" 117 android:layout_width="100dp" 118 android:layout_height="wrap_content" 119 android:layout_marginLeft="10dp" 120 android:textColor="@android:color/white" /> 121 </LinearLayout> 122 </LinearLayout> 123 124 <LinearLayout 125 android:layout_width="match_parent" 126 android:layout_height="0.5dp" 127 android:background="@android:color/black" > 128 </LinearLayout> 129 130 </LinearLayout>"@drawable/tel_icon" /> 131 132 <TextView 133 android:id="@+id/tv_tel" 134 android:layout_width="100dp" 135 android:layout_height="wrap_content" 136 android:layout_marginLeft="10dp" 137 android:textColor="@android:color/white" /> 138 </LinearLayout> 139 </LinearLayout> 140 141 <LinearLayout 142 android:layout_width="match_parent" 143 android:layout_height="0.5dp" 144 android:background="@android:color/black" > 145 </LinearLayout> 146 147 </LinearLayout>
时间： 2024-10-11 14:50:19