Unity的日志管理类

脚本功能：
1，打印日志到控制台
2，显示日志到UI Text
3，将日志写入本地文件
这对unity开发安卓平台来说很有用

using System;
using System.IO;
using System.Text;
using UnityEngine;
using UnityEngine.UI;public class FileLogger : MonoBehaviour
{public static FileLogger Instance;public Text LogText;private string logFilePath;private StringBuilder _logBuilder = new StringBuilder();private int _lineCount = 0;private const int MaxLines = 25;void Awake(){if (Instance == null){Instance = this;}}void Start(){// 注册日志回调Application.logMessageReceived += HandleLog;// 确定日志文件路径logFilePath = "sdcard/game_log.txt";// 检查是否需要删除旧日志（第二天才删除）CheckAndDeleteOldLog();}void OnDestroy(){// 取消注册Application.logMessageReceived -= HandleLog;}void CheckAndDeleteOldLog(){if (File.Exists(logFilePath)){DateTime lastWriteTime = File.GetLastWriteTime(logFilePath);DateTime today = DateTime.Now.Date;// 如果日志文件不是今天创建的，则删除if (lastWriteTime.Date < today){File.Delete(logFilePath);Debug.Log($"删除旧的日志文件：{lastWriteTime.ToShortDateString()}");}}File.AppendAllText(logFilePath, "日志记录器初始化\n");}void HandleLog(string logString, string stackTrace, LogType type){// 构造日志条目string logEntry = $"[{DateTime.Now}] [{type}] {logString}\n";if (type == LogType.Error || type == LogType.Exception){logEntry += $"{stackTrace}\n";}// 写入文件try{File.AppendAllText(logFilePath, logEntry);}catch (Exception e){Debug.LogError($"无法将日志写入文件: {e.Message}");}}public void MyLog(object str, int level = 0){if (LogText == null)return;// 添加新行_logBuilder.Insert(0, $"{str}\n");_lineCount++;// 如果超过最大行数，移除最旧的行if (_lineCount > MaxLines){int lastNewLineIndex = _logBuilder.ToString().LastIndexOf('\n', _logBuilder.Length - 1);if (lastNewLineIndex != -1){_logBuilder.Length = lastNewLineIndex;_lineCount--;}}LogText.text = _logBuilder.ToString();// 输出到 Unity 控制台switch (level){case 0: Debug.Log(str); break;case 1: Debug.LogError(str); break;}}
}