想请教下android下 树形控件怎么实现异步加载。找了半天找到

com.github.bmelnychuk:atv:1.2.+

这个库。

通过继承TreeNode.BaseNodeViewHolder ，实现自定义UI

package com.benqio.jwt.holder;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;

import com.benqio.jwt.R;
import com.benqio.jwt.fragment.video.ChooseDeviceFragment;
import com.github.johnkil.print.PrintView;
import com.unnamed.b.atv.model.TreeNode;
import com.xuexiang.xaop.logger.XLogger;

public class SelectableHeaderHolder extends TreeNode.BaseNodeViewHolder<IconTreeItemHolder.IconTreeItem> {
    private TextView tvValue;
    private PrintView arrowView;
    private CheckBox nodeSelector;

    public SelectableHeaderHolder(Context context) {
        super(context);
    }

    @Override
    public View createNodeView(final TreeNode treeNode, IconTreeItemHolder.IconTreeItem value) {
        final LayoutInflater inflater = LayoutInflater.from(context);
        final View view = inflater.inflate(R.layout.layout_selectable_header, null, false);

        tvValue = (TextView) view.findViewById(R.id.node_value);
        tvValue.setText(value.text);

        final PrintView iconView = (PrintView) view.findViewById(R.id.icon);
        iconView.setIconText(context.getResources().getString(value.icon));

        arrowView = (PrintView) view.findViewById(R.id.arrow_icon);
        if (treeNode.isLeaf()) {
            arrowView.setVisibility(View.GONE);
        }

        nodeSelector = (CheckBox) view.findViewById(R.id.node_selector);
        nodeSelector.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                treeNode.setSelected(isChecked);
                for (TreeNode n : treeNode.getChildren()) {
                    getTreeView().selectNode(n, isChecked);
                }
            }
        });
        nodeSelector.setChecked(treeNode.isSelected());

        treeNode.setClickListener(new TreeNode.TreeNodeClickListener() {
            @Override
            public void onClick(TreeNode node, Object value) {
                XLogger.e(ChooseDeviceFragment.tempList.toString());
                XLogger.e(node.toString());
                XLogger.e(String.valueOf(node.getId()));
                XLogger.e(node.getPath());
                XLogger.e(node.getValue().toString());
            }
        });

        return view;
    }

    @Override
    public int getContainerStyle() {
        return R.style.TreeNodeStyle;
    }

    @Override
    public void toggle(boolean active) {
        arrowView.setIconText(context.getResources().getString(active ? R.string.ic_keyboard_arrow_down : R.string.ic_keyboard_arrow_right));
    }

    @Override
    public void toggleSelectionMode(boolean editModeEnabled) {
        nodeSelector.setVisibility(editModeEnabled ? View.VISIBLE : View.GONE);
        nodeSelector.setChecked(mNode.isSelected());
    }
}

通过节点node点击事件getPath()可以拿到 1:1这样的数据，代表这个treeView第一个节点，第一个子节点被点击了，这是不是意味着我需要，根据这个节点path索引，去对象的arrayList找到对应节点的数据，然后去请求接口，然后在进行构造节点数据，追加到treeview里面啊。

还有这个对应的treeview的数据结构应该是怎样的，没有思路，还望可以指点，请教各位。