Unity打PC包显示日志

遇到报错会直接显示在页面上，并且会在游戏 .exe 所在的目录，创建 ErrorLog.txt文件
C# 复制代码
using UnityEngine;
using System.Collections.Generic;
using System.IO; // 文件操作需要引入的命名空间
using System.Collections;

public class ScreenLogger : MonoBehaviour
{
    public bool showLog = true;
    public int maxLines = 30;       // 屏幕最多显示多少行
    public int fontSize = 24;       // 字体大小
    
    private List<string> logList = new List<string>();
    private string logText = "";
    private GUIStyle logStyle;

    // 自定义日志文件的路径（放在游戏exe旁边）
    private string errorLogPath;

    void Start()
    {
        // 获取游戏 exe 所在的目录，并在其下创建 ErrorLog.txt
        // Application.dataPath 在打包后指向的是 "游戏名_Data" 文件夹，所以要用 Directory.GetParent 往上退一层
        DirectoryInfo dataDir = new DirectoryInfo(Application.dataPath);
        string gameRootDir = dataDir.Parent.FullName;
        errorLogPath = Path.Combine(gameRootDir, "ErrorLog.txt");

        // 每次启动游戏时，清空之前的报错日志（也可以改成追加，看需求）
        File.WriteAllText(errorLogPath, "=== 游戏启动，开始记录错误日志 ===\n");
    }

    void OnEnable()
    {
        Application.logMessageReceived += HandleLog;
    }
    
    void OnDisable()
    {
        Application.logMessageReceived -= HandleLog;
    }

    void HandleLog(string logString, string stackTrace, LogType type)
    {
        // 只处理警告和报错
        if (type == LogType.Error || type == LogType.Exception || type == LogType.Warning)
        {
            // 1. 处理屏幕显示
            string color = (type == LogType.Error || type == LogType.Exception) ? "red" : "yellow";
            string newLog = $"<color={color}>[{type}] {logString}\n{stackTrace}</color>\n";
            logList.Add(newLog);
            if (logList.Count > maxLines) logList.RemoveAt(0);
            logText = string.Join("", logList);

            // 2. 处理文件写入 (写入到 ErrorLog.txt)
            string fileLog = $"[{System.DateTime.Now:HH:mm:ss}] [{type}] {logString}\n堆栈追踪:\n{stackTrace}\n" +
                             "--------------------------------------------------------\n";
            
            // 追加写入文件
            File.AppendAllText(errorLogPath, fileLog);
        }
    }

    void OnGUI()
    {
        if (!showLog || string.IsNullOrEmpty(logText)) return;

        if (logStyle == null)
        {
            logStyle = new GUIStyle(GUI.skin.label);
            logStyle.fontSize = fontSize;
            logStyle.richText = true; 
            logStyle.alignment = TextAnchor.UpperLeft;
            logStyle.wordWrap = true;
        }

        GUI.backgroundColor = new Color(0, 0, 0, 0.8f);
        GUI.Box(new Rect(10, 10, Screen.width - 20, Screen.height / 2), "");

        GUI.backgroundColor = Color.clear;
        GUI.Label(new Rect(15, 15, Screen.width - 30, Screen.height / 2 - 10), logText, logStyle);
    }
}