anchor.diff:  import 'dart:async';
   
   import 'package:flutter/material.dart';
  +import 'package:fluttertoast/fluttertoast.dart';
   import 'package:gsy_github_app_flutter/common/dao/ReposDao.dart';
   import 'package:gsy_github_app_flutter/common/model/FileModel.dart';
   import 'package:gsy_github_app_flutter/common/style/GSYStyle.dart';
  
positive.code:   ///item文件列表点击
    _resolveItemClick(FileItemViewModel fileItemViewModel) {
      if (fileItemViewModel.type == "dir") {
        this.setState(() {
          headerList.add(fileItemViewModel.name);
        });
  
negative.code: 
    ///头部列表点击
    _resolveHeaderClick(index) {
      if(isLoading) {
        Fluttertoast.showToast(msg: CommonUtils.getLocale(context).loading_text);
        return;
      }
      if (headerList[index] != ".") {
        List<String> newHeaderList = headerList.sublist(0, index + 1);
        String path = newHeaderList.sublist(1, newHeaderList.length).join("/");
  