ExpandableListView是一个父子集的显示方式，
1、主界面
1 public class ExpListViewDome extends Activity { 2 3 private ExpandableListView Exp_ListView; 4 private String[] mGroups; 5 private List<List<String>> mChilds; 6 private ExpandableListAdapter adapter; 7 8 @Override 9 protected void onCreate(Bundle savedInstanceState) { 10 super.onCreate(savedInstanceState); 11 setContentView(R.layout.activity_explistviewdome); 12 Exp_ListView = (ExpandableListView) this 13 .findViewById(R.id.exp_ListView); 14 mGroups = new String[2]; 15 mChilds = new ArrayList<List<String>>(); 16 getData(); 17 adapter = new ExpListView_Adapter(ExpListViewDome.this, mChilds, 18 mGroups); 19 Exp_ListView.setAdapter(adapter); 20 21 //默认展开第一个父窗口 22 Exp_ListView.expandGroup(0); 23 24 } 25 26 /** 27 * 获取父窗口和子窗口的数据 28 */ 29 public void getData() { 30 31 mGroups[0] = "第一个老子"; 32 mGroups[1] = "第二个老子"; 33 34 mChilds = new ArrayList<List<String>>(); 35 List<String> list1 = new ArrayList<String>(); 36 list1.add("啦啦啦"); 37 list1.add("哈哈哈"); 38 list1.add("嘎嘎嘎"); 39 list1.add("呵呵呵"); 40 List<String> list2 = new ArrayList<String>(); 41 list2.add("巴巴巴"); 42 list2.add("恰恰恰"); 43 list2.add("呼呼呼"); 44 list2.add("哼哼哼"); 45 mChilds.add(list1); 46 mChilds.add(list2); 47 48 }
2、自定义适配器
1 public class ExpListView_Adapter extends BaseExpandableListAdapter { 2 3 private Context mContext; 4 private List<List<String>> mChilds; 5 private String[] mGroups; 6 7 public ExpListView_Adapter(Context context, List<List<String>> list, 8 String[] Groups) { 9 // TODO Auto-generated constructor stub] 10 this.mContext = context; 11 this.mChilds = list; 12 this.mGroups = Groups; 13 14 } 15 16 @Override 17 public Object getChild(int groupPosition, int childPosition) { 18 // TODO Auto-generated method stub 19 return mChilds.get(groupPosition).get(childPosition); 20 } 21 22 @Override 23 public long getChildId(int groupPosition, int childPosition) { 24 // TODO Auto-generated method stub 25 return childPosition; 26 } 27 28 @Override 29 public View getChildView(int groupPosition, int childPosition, 30 boolean isLastChild, View convertView, ViewGroup parent) { 31 // TODO Auto-generated method stub 32 // 获取子窗口显示数据 33 String str = mChilds.get(groupPosition).get(childPosition); 34 // 设置数据显示样式 35 TextView textView = new TextView(mContext); 36 textView.setText(str); 37 textView.setPadding(60, 0, 10, 10); 38 textView.setGravity(Gravity.CENTER_VERTICAL); 39 textView.setTextColor(Color.BLUE); 40 textView.setTextSize(24); 41 42 return textView; 43 } 44 45 @Override 46 public int getChildrenCount(int groupPosition) { 47 // TODO Auto-generated method stub 48 return mChilds.get(groupPosition).size(); 49 } 50 51 @Override 52 public Object getGroup(int groupPosition) { 53 // TODO Auto-generated method stub 54 return mGroups[groupPosition]; 55 } 56 57 @Override 58 public int getGroupCount() { 59 // TODO Auto-generated method stub 60 return mGroups.length; 61 } 62 63 @Override 64 public long getGroupId(int groupPosition) { 65 // TODO Auto-generated method stub 66 return groupPosition; 67 } 68 69 @Override 70 public View getGroupView(int groupPosition, boolean isExpanded, 71 View convertView, ViewGroup parent) { 72 // TODO Auto-generated method stub 73 // 获取父窗口显示数据 74 String Title = mGroups[groupPosition]; 75 // 设置数据显示样式 76 TextView textView = new TextView(mContext); 77 textView.setText(Title); 78 textView.setBackgroundColor(Color.GRAY); 79 textView.setPadding(60, 0, 0, 0); 80 textView.setTextColor(Color.BLUE); 81 textView.setTextSize(30); 82 83 return textView; 84 } 85 86 @Override 87 public boolean hasStableIds() { 88 // TODO Auto-generated method stub 89 return false; 90 } 91 92 @Override 93 public boolean isChildSelectable(int groupPosition, int childPosition) { 94 // TODO Auto-generated method stub 95 //true 为子窗口有点击事件 96 return true; 97 }