Android 开发 listview QQ多级列表的实现

发布时间：2013-9-24 17:36    发布者：reggae
关键词： android
[代码] 主类

  1. package com.android.qu.antking.list;

  3. import android.app.Activity;
  4. import android.content.Context;
  5. import android.os.Bundle;
  6. import android.view.LayoutInflater;
  7. import android.view.View;
  8. import android.view.ViewGroup;
  9. import android.widget.BaseExpandableListAdapter;
  10. import android.widget.ExpandableListView;
  11. import android.widget.ImageView;
  12. import android.widget.TextView;

  14. import java.util.*;



  18. public class MyMain extends Activity {
  19.   //author antkingwei
  20. private List> parentList=new ArrayList>();

  22. private List>> childList = new ArrayList>>();

  24. ExpendAdapter adapter;

  26. ExpandableListView exList;

  28. private String[] listName = new String[]{
  29. "我的好友","高中同学","大学同学","移动开发","网站建设","普通朋友"
  30. };
  31. private String[] childTitle= new String[]{
  32. "丫宁","王八锐","小鸟","连超","董二丫"
  33. };
  34. private String[] childMood= new String[]{
  35. "我喜欢王锐","我就是王八","我也喜欢王锐","上边一群傻帽","同楼上"
  36. };
  37. private int[] headImage=new int[]{
  38. R.drawable.ning,R.drawable.rui,R.drawable.niao,R.drawable.lianchao,R.drawable.xiaoxiao
  39. };

  41.     public void onCreate(Bundle savedInstanceState) {
  42.         super.onCreate(savedInstanceState);
  43.         setContentView(R.layout.main);

  45.         exList = (ExpandableListView) this.findViewById(R.id.expandableListView1);
  46.         parentList =getParentList();
  47.         childList = getChildList();
  48.        adapter = new ExpendAdapter(MyMain.this, parentList, childList);
  49.       
  50.         exList.setAdapter(adapter);
  51.         exList.setGroupIndicator(null);
  52.         exList.setDivider(null);
  53.         
  54.     }
  55.     public List> getParentList(){
  56.     List> list = new ArrayList>();
  57.     for(int i=0;i
  58.     Map curGroupMap = new HashMap();
  59.              list.add(curGroupMap);
  60.              curGroupMap.put("List", listName[i]);
  61.     }
  62.     return list;
  63.     }
  64.     public List>> getChildList(){
  65.     List>> list1 = new ArrayList>>();
  66.     for (int i = 0; i < listName.length; i++) {
  67.             
  68.                
  69.              List> children = new ArrayList>();
  70.              for (int j = 0; j
  71.                  Map curChildMap = new HashMap();
  72.                  children.add(curChildMap);
  73.                  curChildMap.put("Title", childTitle[j]);
  74.                  curChildMap.put("Mood", childMood[j]);
  75.                  curChildMap.put("Head", headImage[j]);
  76.              }
  77.              list1.add(children);
  78.     }
  79.     return list1;
  80.    
  81.     }
  82.    
  83. }
复制代码

[代码] 自定义的Adapter

  1. package com.android.qu.antking.list;

  3. import android.content.Context;
  4. import android.view.LayoutInflater;
  5. import android.view.View;
  6. import android.view.ViewGroup;
  7. import android.widget.BaseExpandableListAdapter;
  8. import android.widget.ImageView;
  9. import android.widget.TextView;
  10. import android.widget.Toast;

  12. import java.util.*;

  14. public class ExpendAdapter extends BaseExpandableListAdapter {
  15.       private LayoutInflater layoutInflater;
  16.       
  17.       private Context mContext;
  18.       
  19.       private List> parentList = new ArrayList>();
  20.       
  21.       private List>> childList = new ArrayList>>();
  22.       
  23.       
  24. public ExpendAdapter(Context mContext,List> parentList,List>> childList){


  27. this.mContext = mContext;

  29. this.parentList = parentList;

  31. this.childList = childList;

  33. layoutInflater = LayoutInflater.from(mContext);
  34. }
  35. public Object getChild(int groupPosition, int childPosition) {
  36. // TODO Auto-generated method stub
  37. return childList.get(groupPosition).get(childPosition).get("Title").toString();
  38. }

  40. @Override
  41. public long getChildId(int groupPosition, int childPosition) {
  42. return childPosition;
  43. }

  45. @Override
  46. public View getChildView(int groupPosition, int childPosition,
  47. boolean isLastChild, View convertView, ViewGroup parent) {

  49. if(convertView ==null){
  50. convertView = layoutInflater.inflate(R.layout.childlist, null);

  52. }
  53. final ImageView head=(ImageView)convertView.findViewById(R.id.headImage);
  54.   head.setImageResource(Integer.valueOf(childList.get(groupPosition).get(childPosition).get("Head").toString()));
  55. final TextView title=(TextView)convertView.findViewById(R.id.title);
  56. title.setText(childList.get(groupPosition).get(childPosition).get("Title").toString());

  58.    final TextView mood =(TextView)convertView.findViewById(R.id.mood);
  59.      mood.setText(childList.get(groupPosition).get(childPosition).get("Mood").toString());
  60. return convertView;
  61. }

  63. @Override
  64. public int getChildrenCount(int groupPosition) {
  65. // TODO Auto-generated method stub
  66. return childList.get(groupPosition).size();
  67. }

  69. @Override
  70. public Object getGroup(int groupPosition) {
  71. // TODO Auto-generated method stub
  72. return parentList.get(groupPosition).get("List").toString();
  73. }

  75. @Override
  76. public int getGroupCount() {
  77. // TODO Auto-generated method stub
  78. return parentList.size();
  79. }

  81. @Override
  82. public long getGroupId(int groupPosition) {
  83. // TODO Auto-generated method stub
  84. return groupPosition;
  85. }

  87. @Override
  88. public View getGroupView(int groupPosition, boolean isExpanded,
  89. View convertView, ViewGroup parent) {

  91. if(convertView==null){
  92. convertView=layoutInflater.inflate(R.layout.parentlist, null);

  94. }
  95. final TextView list = (TextView) convertView.findViewById(R.id.list);
  96. list.setText(parentList.get(groupPosition).get("List").toString());
  97. return convertView;
  98. }

  100. @Override
  101. public boolean hasStableIds() {
  102. // TODO Auto-generated method stub
  103. Toast.makeText(mContext,"nihao",Toast.LENGTH_SHORT).show();
  104. return true;
  105. }

  107. @Override
  108. public boolean isChildSelectable(int groupPosition, int childPosition) {
  109. Toast.makeText(mContext, "这是第"+groupPosition+"组，第"+childPosition+"个", Toast.LENGTH_SHORT).show();
  110. return true;
  111. }

  113. }
复制代码

[代码] 主布局文件


  2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3.     android:orientation="vertical"
  4.     android:layout_width="fill_parent"
  5.     android:layout_height="fill_parent"
  6.     android:background="@drawable/back1"
  7.     >


复制代码

[代码] parentList布局


  3.   xmlns:android="http://schemas.android.com/apk/res/android"
  4.   android:layout_width="fill_parent"
  5.   android:orientation="horizontal"
  6.   android:id="@+id/parentList"
  7.   android:layout_height="wrap_content">
  8.   
  9.     android:layout_width="60px"
  10.     android:layout_height="60px"
  11.     android:src="@drawable/user_group"
  12.    />
  13.    
  14.     android:id="@+id/list"
  15.     android:textSize="20px"
  16.     android:layout_width="wrap_content"
  17.     android:layout_height="wrap_content"/>
  18.   
复制代码

[代码] childList布局


  3.   xmlns:android="http://schemas.android.com/apk/res/android"
  4.   android:layout_width="fill_parent"
  5.   android:layout_height="wrap_content"
  6.   android:id="@+id/childList"
  7.   android:orientation="horizontal"
  8.   >
  9.   
  10.     android:paddingLeft="20px"
  11.     android:id="@+id/headImage"
  12.     android:src="@drawable/icon"
  13.     android:layout_width="50px"
  14.     android:layout_height="50px"
  15.     android:layout_marginBottom="5px"
  16.     android:layout_marginRight="10px"/>
  17.   
  18.    android:orientation="vertical"
  19.    android:layout_width="fill_parent"
  20.    
  21.    android:layout_height="wrap_content">
  22.    
  23.    android:textSize="18px"
  24.    android:layout_width="wrap_content"
  25.    android:layout_height="wrap_content"
  26.    />
  27.    
  28.    android:textSize="16px"
  29.    android:layout_width="wrap_content"
  30.    android:layout_height="wrap_content"/>
  31.    
  32.    
  33.    
复制代码

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