模拟QQ分组（具有伸缩功能） (添加开源框架的光闪烁效果)SimpleExpandableListAdapter 适配器的用法，并且可添加组及其组内数据。 
  1 package com.lixu.qqfenzu;
  2 
  3 import java.util.ArrayList;
  4 import java.util.HashMap;
  5 import java.util.List;
  6 import java.util.Map;
  7 
  8 import com.facebook.shimmer.ShimmerFrameLayout;
  9 import com.romainpiel.shimmer.Shimmer;
 10 import com.romainpiel.shimmer.ShimmerTextView;
 11 
 12 import android.app.Activity;
 13 import android.content.Context;
 14 import android.graphics.Color;
 15 import android.os.Bundle;
 16 import android.view.LayoutInflater;
 17 import android.view.View;
 18 import android.view.View.OnClickListener;
 19 import android.view.ViewGroup;
 20 import android.widget.Button;
 21 import android.widget.EditText;
 22 import android.widget.ExpandableListView;
 23 import android.widget.ExpandableListView.OnGroupClickListener;
 24 import android.widget.SimpleExpandableListAdapter;
 25 import android.widget.TextView;
 26 import android.widget.Toast;
 27 
 28 public class MainActivity extends Activity {
 29     private ArrayList<HashMap<String, Object>> date;
 30     private final String GROUP = "group";
 31     private final String CHILD = "child";
 32     EditText et;
 33     MyExpandableListAdapter mExpandableListAdapter = null;
 34 
 35     @Override
 36     protected void onCreate(Bundle savedInstanceState) {
 37         super.onCreate(savedInstanceState);
 38         setContentView(R.layout.activity_main);
 39 
 40         Button btn1 = (Button) findViewById(R.id.btn);
 41         Button btn2 = (Button) findViewById(R.id.btn1);
 42         et = (EditText) findViewById(R.id.et);
 43 
 44         ExpandableListView elv = (ExpandableListView) findViewById(R.id.elv);
 45 
 46         btn1.setOnClickListener(new OnClickListener() {
 47 
 48             @Override
 49             public void onClick(View v) {
 50                 addGroup(2);
 51                 Toast.makeText(getApplicationContext(), "添加成功！", 0).show();
 52             }
 53         });
 54         btn2.setOnClickListener(new OnClickListener() {
 55 
 56             @Override
 57             public void onClick(View v) {
 58                 addChild(1);
 59                 Toast.makeText(getApplicationContext(), "添加成功！", 0).show();
 60             }
 61         });
 62 
 63         String[] group = { "家人", "朋友", "同事", "同学" };
 64         String[] name = { "张三", "李四", "王五", "狗儿" };
 65 
 66         date = new ArrayList<HashMap<String, Object>>();
 67 
 68         for (String n : group) {
 69             HashMap<String, Object> map = new HashMap<String, Object>();
 70 
 71             map.put(GROUP, n);
 72 
 73             ArrayList<String> child = new ArrayList<String>();
 74             for (String n1 : name) {
 75                 child.add(n1);
 76             }
 77 
 78             map.put(CHILD, child);
 79             date.add(map);
 80 
 81         }
 82 
 83         mExpandableListAdapter = new MyExpandableListAdapter(this, null, 0, 0, null, null, null, 0, 0, null, null);
 84         elv.setAdapter(mExpandableListAdapter);
 85         // 去掉下拉小箭头
 86         elv.setGroupIndicator(null);
 87 
 88         // 展开0组
 89         // elv.expandGroup(0);
 90         // 收起1组
 91         // elv.collapseGroup(1);
 92         // 展开2组
 93         // elv.expandGroup(2);
 94 
 95         elv.setOnGroupClickListener(new OnGroupClickListener() {
 96 
 97             @Override
 98             public boolean onGroupClick(ExpandableListView arg0, View arg1, int arg2, long arg3) {
 99                 return false;
100             }
101         });
102     }
103 
104     // 增加组
105     public void addGroup(int pos) {
106         String str = et.getText().toString();
107 
108         HashMap<String, Object> map = new HashMap<String, Object>();
109 
110         map.put(GROUP, str);
111 
112         ArrayList<String> child = new ArrayList<String>();
113 
114         map.put(CHILD, child);
115         date.add(pos, map);
116 
117         mExpandableListAdapter.notifyDataSetChanged();
118         et.setText("");
119 
120     }
121 
122     // 增加特定组内数据
123     public void addChild(int pos) {
124         String str = et.getText().toString();
125         // 往第2组内添加数据
126         HashMap<String, Object> map = date.get(1);
127         ArrayList<String> list = (ArrayList<String>) map.get(CHILD);
128         list.add(pos, str);
129 
130         mExpandableListAdapter.notifyDataSetChanged();
131         et.setText("");
132 
133     }
134 
135     private class MyExpandableListAdapter extends SimpleExpandableListAdapter {
136         private LayoutInflater flater = null;
137 
138         public MyExpandableListAdapter(Context context, List<? extends Map<String, ?>> groupData,
139                 int expandedGroupLayout, int collapsedGroupLayout, String[] groupFrom, int[] groupTo,
140                 List<? extends List<? extends Map<String, ?>>> childData, int childLayout, int lastChildLayout,
141                 String[] childFrom, int[] childTo) {
142             super(context, groupData, expandedGroupLayout, collapsedGroupLayout, groupFrom, groupTo, childData,
143                     childLayout, lastChildLayout, childFrom, childTo);
144             flater = LayoutInflater.from(context);
145         }
146 
147         @Override
148         public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView,
149                 ViewGroup parent) {
150             if (convertView == null)
151                 convertView = flater.inflate(R.layout.list, null);
152 
153             ShimmerFrameLayout sfl = (ShimmerFrameLayout) convertView.findViewById(R.id.sfl);
154 
155             sfl.setDuration(2000);
156             sfl.startShimmerAnimation();
157             TextView tv = (TextView) convertView.findViewById(R.id.tv);
158             tv.setText(getChild(groupPosition, childPosition) + "");
159             tv.setTextSize(20);
160 
161             return convertView;
162         }
163 
164         @Override
165         public int getChildrenCount(int groupPosition) {
166 
167             ArrayList<String> items = (ArrayList<String>) date.get(groupPosition).get(CHILD);
168             return items.size();
169         }
170 
171         @Override
172         public int getGroupCount() {
173             return date.size();
174         }
175 
176         @Override
177         public Object getChild(int groupPosition, int childPosition) {
178             ArrayList<String> items = (ArrayList<String>) date.get(groupPosition).get(CHILD);
179             return items.get(childPosition);
180         }
181 
182         @Override
183         public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
184             if (convertView == null)
185                 convertView = flater.inflate(R.layout.list2, null);
186 
187             ShimmerTextView stv = (ShimmerTextView) convertView.findViewById(R.id.stv1);
188             stv.setText(getGroup(groupPosition).toString());
189             stv.setTextColor(Color.BLUE);
190             stv.setTextSize(30);
191             stv.setBackgroundColor(Color.YELLOW);
192             Shimmer shimmer = new Shimmer();
193             shimmer.setDuration(2500);
194             shimmer.start(stv);
195 
196             return convertView;
197 
198         }
199 
200         @Override
201         public Object getGroup(int groupPosition) {
202             HashMap<String, Object> items = date.get(groupPosition);
203             return items.get(GROUP) + "";
204         }
205 
206     }
207 
208 }


xml文件：

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:id="@+id/LinearLayout1"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:orientation="vertical"
 7     tools:context="com.lixu.qqfenzu.MainActivity" >
 8 
 9     <ExpandableListView
10         android:id="@+id/elv"
11         android:layout_width="match_parent"
12         android:layout_height="match_parent"
13         android:layout_weight="2" />
14 
15     <LinearLayout
16         android:id="@+id/linearLayout1"
17         android:layout_width="wrap_content"
18         android:layout_height="wrap_content" >
19 
20         <EditText
21             android:id="@+id/et"
22             android:layout_width="100dp"
23             android:layout_height="wrap_content" >
24         </EditText>
25 
26         <Button
27             android:id="@+id/btn1"
28             android:layout_width="wrap_content"
29             android:layout_height="wrap_content"
30             android:layout_alignParentRight="true"
31             android:layout_alignTop="@+id/linearLayout1"
32             android:text="添加内容" />
33 
34         <Button
35             android:id="@+id/btn"
36             android:layout_width="wrap_content"
37             android:layout_height="wrap_content"
38             android:layout_alignBaseline="@+id/btn1"
39             android:layout_alignBottom="@+id/btn1"
40             android:layout_toLeftOf="@+id/btn1"
41             android:text="添加组" />
42     </LinearLayout>
43 
44 </LinearLayout>
 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     <com.facebook.shimmer.ShimmerFrameLayout
 8         android:id="@+id/sfl"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content" >
11 
12         <TextView
13             android:id="@+id/tv"
14             android:layout_width="wrap_content"
15             android:layout_height="wrap_content" />
16     </com.facebook.shimmer.ShimmerFrameLayout>
17 
18 </LinearLayout>
 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     <com.romainpiel.shimmer.ShimmerTextView
 8         android:id="@+id/stv1"
 9         android:layout_width="wrap_content"
10         android:layout_height="wrap_content" >
11     </com.romainpiel.shimmer.ShimmerTextView>
12 
13 </LinearLayout>

运行效果：

posted on 2015-11-20 10:23  0代码狂人0  阅读(339)  评论(0)  编辑  收藏  举报