Unity监听外部路径文件变化

Unity监听外部路径文件变化

1、使用时机

一般用于管理型软件使用，例如监听其他应用的本地存档，进行云存档功能

2、使用方法

private void StartApp(string path,string savePath,string args)
{
    Process process = Process.Start(path,args);
    if(process != null)
    {
        Listener(savePath);
    }
}

private void ApplicationQuitListener(FileSystemWatcher watcher)
{
    if(watcher != null)
    {
        watcher.EnableRaisingEvents = false;//关闭监听
    }
}

private void Listener(string path)
{
    //监听路径文件变化 监听.xml后缀的文件
    FileSystemWatcher watcher = new FileSystemWatcher(path,"*.xml");
    watcher.Created += WatcherExecute;
    watcher.Changed += WatcherExecute;
    watcher.Deleted += WatcherExecute;
    watcher.Renamed += WatcherExecute;
    watcher.EnableRaisingEvents = true;//启动监听
}

private void WatcherExecute(object sender, FileSystemEventArgs e)
{
    switch (e.ChangeType)
    {
        case WatcherChangeTypes.Created:
            Debug.Log($"检测到新增文件:{e.Name}");
            break;
        case WatcherChangeTypes.Changed:
            Debug.Log($"检测到文件{e.Name}已经改变");
            break;
        case WatcherChangeTypes.Deleted:
            Debug.Log($"检测到文件{e.Name}已经删除");
            break;
        case WatcherChangeTypes.Renamed:
            Debug.Log($"检测到文件{e.Name}已经重命名");
            break;
     }
}