android实现菜单三级树效果

public void treeOnClick() { // TODO Auto-generated method stub superAdapter.RemoveAll(); superAdapter.notifyDataSetChanged(); String MenuCatName = getDate("MenuCatName"); String MenuGroupName = getDate("MenuGroupName"); String MenuItemName = getDate("MenuItemName"); // 一级菜单名数组 parent = MenuCatName.split("/"); // 二级菜单名数组 child = MenuGroupName.split("/"); // 三级菜单名数组 grandchild = MenuItemName.split("/");  List<SuperTreeViewAdapter.SuperTreeNode> superNodeTree = superAdapter  .GetTreeNode(); for (int i = 0; i < parent.length; i++) {  SuperTreeViewAdapter.SuperTreeNode superNode = new SuperTreeViewAdapter.SuperTreeNode();  superNode.parent = parent[i];  for (int j = 0; j < child_grandchild.length; j++) {  TreeViewAdapter.TreeNode node = new TreeViewAdapter.TreeNode();  node.parent = child_grandchild[j][0][0];  for (int k = 0; k < child_grandchild[j][1].length; k++) {   node.childs.add(child_grandchild[j][1][k]);  }  superNode.childs.add(node);  }  superNodeTree.add(superNode); } superAdapter.UpdateTreeNode(superNodeTree); expandableListView.setAdapter(superAdapter);  }

public ExpandableListView getExpandableListView() { AbsListView.LayoutParams lp = new AbsListView.LayoutParams(  ViewGroup.LayoutParams.FILL_PARENT, TreeViewAdapter.ItemHeight); ExpandableListView superTreeView = new ExpandableListView(parentContext); superTreeView.setLayoutParams(lp); // 去掉子菜单分割线 superTreeView.setDivider(null); return superTreeView; }  /** * 三层树结构中的第二层是一个ExpandableListView */ public View getChildView(int groupPosition, int childPosition,  boolean isLastChild, View convertView, ViewGroup parent) { // 是 final ExpandableListView treeView = getExpandableListView(); final TreeViewAdapter treeViewAdapter = new TreeViewAdapter(  this.parentContext, 0); // 临时变量取得TreeViewAdapter的TreeNode集合，可为空 List<TreeNode> tmp = treeViewAdapter.getTreeNode(); final TreeNode treeNode = (TreeNode) getChild(groupPosition,  childPosition); tmp.add(treeNode); treeViewAdapter.updateTreeNode(tmp); treeView.setAdapter(treeViewAdapter);  // 取得选中的二级树形菜单的父子节点,结果返回给外部回调函数 treeView.setOnChildClickListener(this.stvClickEvent);  /**  * 第二级菜单展开时通过取得节点数来设置第三级菜单的大小  */ treeView.setOnGroupExpandListener(new OnGroupExpandListener() {  @Override  public void onGroupExpand(int groupPosition) {   AbsListView.LayoutParams lp = new AbsListView.LayoutParams(   ViewGroup.LayoutParams.FILL_PARENT, (treeNode.childs    .size() + 1) * TreeViewAdapter.ItemHeight + 0);  treeView.setLayoutParams(lp);  } });  /**  * 第二级菜单回收时设置为标准Item大小  */ treeView.setOnGroupCollapseListener(new OnGroupCollapseListener() {  @Override  public void onGroupCollapse(int groupPosition) {   AbsListView.LayoutParams lp = new AbsListView.LayoutParams(   ViewGroup.LayoutParams.FILL_PARENT,   TreeViewAdapter.ItemHeight);  treeView.setLayoutParams(lp);  } }); treeView.setPadding(TreeViewAdapter.PaddingLeft * 2, 0, 0, 0); return treeView; }  /** * 三级树结构中的首层是TextView,用于作为title */ public View getGroupView(int groupPosition, boolean isExpanded,  View convertView, ViewGroup parent) { TextView textView = TreeViewAdapter.getTextView(this.parentContext); textView.setText(getGroup(groupPosition).toString()); // 设置首层menu标题背景 textView.setBackgroundResource(R.drawable.menu_category); textView.setPadding(TreeViewAdapter.PaddingLeft * 2, 0, 0, 0);  return textView; }