unity UTF8 format to load and save xml

UTF8 format load xml

string xmlPath="D:/xxx.xml"
FileLoader fileLoader=new FileLoader();
fileLoader.loadAsync(xmlPath);
fileLoader.onComplete-=onloadXmlComplete;

private void onloadXmlComplete(byte[][] bytesList){
    fileLoader.onComplete-=onloadXmlComplete;
    byte[] bytes=bytesList[0];
    if(bytes!=null){
        string xmlString=System.Text.Encoding.UTF8.GetString(bytes);
        xmlDocument=new XmlDocument();
        xmlDocument.LoadXml(xmlString);
    }
}

UTF8 format to save xml

xmlDocument.Save("D:/xxx.xml");

FileLoader.cs

using System;
using System.IO;
using System.Threading.Tasks;
using UnityEngine;

/// <summary>
/// 文件加载器
/// </summary>
public class FileLoader{
    
    /// <summary>
    /// 文件加载完成事件
    /// <br>void(byte[][] bytesList)</br>
    /// <br>bytesList：表示加载完成后各个文件的总字节(索引与加载时传递的参数对应)</br>
    /// </summary>
    public event Action<byte[][]> onComplete;
    
    private bool _isDestroyed;
    private FileStream _fileStream;
    private bool _isLoading;
    
    /// <summary>
    /// 异步加载一个或多个本地文件
    /// <br>如果文件不存在将在onComplete(byte[][] bytesList)事件参数bytesList添加一个null</br>
    /// </summary>
    /// <param name="filePaths">可变长度文件路径列表，如: @"C:\Users\Administrator\Desktop\views0.xml"</param>
    public async void loadAsync(params string[] filePaths){
        onLoadStart();

        byte[][] outBytesList=new byte[filePaths.Length][];
        for(int i=0;i<filePaths.Length;i++){
            byte[] buffer=null;
            string filePath=filePaths[i];
            await Task.Run(()=>{
                if(File.Exists(filePath)){
                    _fileStream=File.OpenRead(filePath);

                    int fileLength=(int)_fileStream.Length;
                    buffer=new byte[fileLength];

                    _fileStream.Read(buffer,0,fileLength);
                }
            });
            if(_isDestroyed){
                //加载过程中，删除该脚本绑定的对象时，打断
                break;
            }
            outBytesList[i]=buffer;
            dispose();
        }

        //所有加载完成
        if(!_isDestroyed){
            onLoadCompleteAll(outBytesList);
        }
    }

    private void onLoadStart(){
        _isLoading=true;
    }

    private void onLoadCompleteAll(byte[][] outBytesList){
        _isLoading=false;
        onComplete?.Invoke(outBytesList);
    }

    private void dispose(){
        if(_fileStream!=null){
            _fileStream.Dispose();
            _fileStream.Close();
            _fileStream=null;
        }
    }
    
    public void destroy(){
        if(_isDestroyed)return;
        _isDestroyed=true;
        
        dispose();
    }
    
    public bool isLoading{ get => _isLoading; }

}